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topic: Marine Biodiversity
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Undercover in a shark fin trafficking ring: Interview with wildlife crime fighter Andrea Crosta
- Worldwide, many of the key players in wildlife trafficking are also involved in other criminal enterprises, from drug smuggling to human trafficking and money laundering.
- In an interview with Mongabay, Andrea Crosta, founder of Earth League International, talks about the group’s new report on shark fin trafficking from Latin America to East Asia and the concept of “crime convergence.”
- International wildlife trafficking, including the illegal trade in shark fins, is dominated by Chinese nationals, Crosta says.
- Since smuggling routes often overlap and criminal groups frequently work together across borders, Crosta calls for field collaboration among countries and law enforcement agencies to fight wildlife crime, the world’s fourth-largest criminal enterprise.
Twilight zone fishing: Can we fish the ocean’s mesopelagic layer?
- Fishing experts are looking for ways to fish in the mesopelagic zone, a layer of water that stretches from 200-1,000 meters (660-3,300 feet) beneath the surface, which has, thus far, remained relatively unexploited.
- Many challenges stand in the way of making mesopelagic fishing a reality, such as the difficulties of finding and capturing mesopelagic fish, and processing them into usable products.
- Yet experts are working to overcome these obstacles, with one suggesting that mesopelagic fishing could begin in the next few years.
- Conservation experts have expressed concern about the possible start of mesopelagic fishing, arguing that it could cause environmental problems.
‘Our life support system is at risk’: Interview with ‘Her Deepness’ Sylvia Earle
- At the 9th Our Ocean Conference in Athens, Mongabay’s Elizabeth Claire Alberts interviewed oceanographer and marine biologist Sylvia Earle about the pressures facing our oceans, actions needed to turn things around, and how to find hope for the future.
- Earle has been a trailblazer in her career as a scientist, with more than 225 publications to her name, leading more than 100 expeditions, and breaking records as the first woman to venture into the deep ocean in a submersible and also to perform the deepest untethered sea walk.
- She’s currently president and chair of the NGO Mission Blue and an explorer-in-residence at the National Geographic Society.
- Now in her late 80s, she still spends most of her time traveling the world to inspire action to protect the ocean.
No answers for Ghanaian fishery observer’s family months after suspected death
- Samuel Abayateye, a 38-year-old father of two, was working as a fisheries observer when he was reported missing from his assigned vessel in October 2023.
- After a body missing its head, forearms and feet that Abayateye’s family says closely resembled him washed ashore in December, the Ghana Police Service opened an investigation.
- Five months later, Abayateye’s family said they still haven’t received any information from the authorities investigating the case, or the results of a DNA test to confirm the identity of the body.
- A fisheries observer told Mongabay the case has sown fear among observers appointed to monitor and report on illegal fishing in fleets operating in Ghana. Fishing industry experts say the case highlights the dangers faced by observers, whose job is critical to ensuring fishing vessels comply with the law.
Fewer fish and more rules lead to illegal catches, Italian fishers say
- The line between legal and illegal fishing in the waters off Italy’s Calabria region is often blurred, with fishers blaming stringent top-down regulations for constricting their traditional practices.
- The issue is further muddied by the presence here of the ‘ndrangheta or Calabrian mafia, which investigations have shown is involved in the fish trade and also uses it as cover for illicit activities such as drug smuggling.
- The Mediterranean Sea is experiencing a decline in fish stocks, ranging from 60-90% depending on the species, with the NGO Sea Shepherd Italia blaming illegal fishing for environmental damage.
Fishing by dodgy fleets hurts economies, jobs in developing countries: Report
- A recent report gauged the economic damage done by fishing fleets with shady track records in five vulnerable countries: Ecuador, Ghana, Peru, the Philippines, and Senegal.
- It found that these fleets’ activities could be costing the five countries 0.26% of their combined GDP, leaving some 30,000 people jobless and pushing around 142,000 deeper into poverty.
- “The report emphasizes that the uncontrolled growth in global fishing has led to overfishing, stressing fish stocks and impacting communities and the oceans’ well-being,” one of the authors told Mongabay.
Annual ocean conference raises $11.3b in pledges for marine conservation
- The 9th Our Ocean Conference (OOC) took place in Athens from April 15-17.
- Government, NGO and philanthropic delegates made 469 new commitments worth more than $11.3 billion to help protect the oceans, which was lower than in previous years.
- While some conference hosts and attendees celebrated the many successes of the OOC, there was also a shared concern that decision-makers aren’t moving fast enough to secure a sustainable future for the global ocean.
Global coral bleaching now underway looks set to be largest on record
- Scientists say that coral reefs are currently undergoing a global bleaching event, with more than 54% of the world’s coral reef areas in the territorial waters of over 50 countries experiencing heat stress. According to one scientist, the percentage of areas dealing with bleaching-level heat stress “has been increasing by roughly 1% per week.”
- To assess the current bleaching event, scientists drew on satellite-derived sea surface temperature data and in-water measurements.
- Experts say the current El Niño, a phase in the El Niño–Southern Oscillation (ENSO) climate pattern, in combination with rising global sea temperatures, is responsible for the extensive coral bleaching.
- Mongabay interviewed scientists most familiar with coral reef bleaching data, and experts attending the 9th Our Ocean Conference in Athens, taking place from April 15-17.
It will take 880 years to achieve UN ocean conservation goals, at this rate (commentary)
- Indigenous conservationist Angelo Villagomez will speak at the Our Ocean conference, one of the largest and highest profile conferences of its kind, this week in Athens, Greece.
- He plans to say that ocean conservation has lost momentum toward protecting 30% of the ocean by 2030 and that a lot more needs to be done to address the human dimensions of conservation, including guaranteeing access rights, equity, and justice.
- “At this rate, raising the area of global ocean protection from 8% to 30% will take an additional 880 years,” he argues in a new op-ed.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.
One of Colombia’s largest estuary ecosystems is drying up, communities warn
- Decades of sediment pollution, contamination and government infrastructure projects have disrupted the natural flow of saltwater and freshwater into the Ciénaga Grande of Santa Marta, one of Colombia’s key wetlands and a major estuary on the Caribbean Sea.
- Fish stocks have also plummeted, with profitable, big species being replaced by smaller ones and leaving fishing communities without their livelihoods.
- Although authorities claim that they are investing in the region, locals complain the autonomous corporation in charge is not taking steps to dredge the canals and that there isn’t enough transparency on how the money is being spent.
Rewilding program ships eggs around the world to restore Raja Ampat zebra sharks
- A rewilding project aimed at saving endangered zebra sharks (Stegostoma tigrinum is sending eggs from aquarium sharks more than 12,000 kilometers (7,500 miles) away to nurseries in Raja Ampat.
- After hatching, the young sharks are kept in tanks until they are strong enough to release into the wild.
- Researchers hope to release 500 zebra sharks into the wild within 10 years in an effort to support a large, genetically diverse breeding population.
- A survey estimated the zebra shark had a population of 20 spread throughout the Raja Ampat archipelago, making the animal functionally extinct in the region.
As a megaport rises in Cameroon, a delicate coastal ecosystem ebbs
- The deepwater port at Kribi, Cameroon, is a massive project, begun in 2011 and slated for completion in 2040.
- It aims to decongest the existing port at Douala and become a trade hub for all Central African countries.
- The port is located just a few kilometers from Cameroon’s only marine protected area, home to green, olive ridley and hawksbill turtles.
- While aiming to improve the country’s economy, the port has generated unintended environmental consequences, intensifying coastal erosion, increasing human pressure and pollution, and endangering marine life and local fishers’ livelihoods.
In Raja Ampat, pearl farming balances business and ecological sustainability
- In the Raja Ampat islands of eastern Indonesia, pearl farming thrives within a healthy marine ecosystem, with companies like PT Arta Samudra focusing on sustainable practices.
- Pearl farms are very secretive about their methods, which include the delicate process of implanting beads into oysters to cultivate pearls, a technique developed to accelerate pearl production.
- Challenges such as climate change impacts and maintaining a pristine environment highlight the importance of balancing industry growth with ecosystem preservation.
- With concerted efforts to protect marine habitats, Raja Ampat’s pearl industry aims for global recognition while emphasizing sustainability.
Japan prepares to mine its deep seabed by decade’s end
- Japan is one among just a handful of nations actively pursuing deep-sea mining within its own waters.
- The country aims to be ready to mine by the late 2020s and could be among the first nations to exploit the deep sea.
- The country has completed multiple small-scale mining tests that it claims are world firsts, and it positions itself as a global leader in the “sustainable development” of deep-sea mining.
- However, concerns about the environmental impacts of deep-sea mining have prompted widespread opposition to the practice, and one critic notes that Japan’s momentum may be too great to stop for any warning signs its research might raise.
Son of Cali Cartel leader tied to Colombia-Hong Kong shark fin trafficking
- Although Colombia banned the fishing and trading of sharks in early 2021, their fins — taken from sharks in Colombia and around the world — have continued to feed a global industry worth $500 million per year.
- This is the story of the largest seizure of its kind ever carried out in Colombian territory. A shipment of more than 3,400 shark fins destined for Hong Kong was intercepted at the airport in Bogotá in September 2021.
- For the first time, this investigation reveals the owner of this contraband: Fernando Rodríguez Mondragón. He is the son of the late Gilberto Rodríguez Orejuela, who was the leader of the Cali Cartel, once one of the largest drug trafficking organizations in the world.
- This investigation reconstructs the shipment’s route from the department of La Guajira, on the border with Venezuela, to Colombia’s capital, passing through the mountains in the department of Valle del Cauca.
Report: Rising slaughter of small whales and dolphins threatens ocean balance
- Killings of small whales, porpoises and dolphins are rising, with more than 100,000 of these marine mammals slaughtered each year, according to a new report from German and British NGOs.
- Many regions report increased catches driven by demand for dolphin meat as food and shark bait in areas impacted by economic crisis and dwindling fish stocks.
- Failure to address unsustainable exploitation of small cetaceans exacerbates ecological imbalance and heavy metal toxicity risks to humans who eat them, according to the report.
- Insufficient legislation and enforcement remain critical issues, according to the report, which calls for international collaboration and stronger protection measures.
Fears of marine disaster loom after fertilizer-laden ship sinks in Red Sea
- The MV Rubymar, a cargo ship carrying about 21,000 metric tons of ammonium phosphate sulfate fertilizer, has sunk in the Red Sea following an attack by Yemen’s Houthi rebels, raising fears of an environmental disaster.
- In addition to the fertilizer potentially entering the ocean, the vessel is also leaking heavy fuel, which experts say will impact the marine environment.
- The Red Sea is known to harbor some of the world’s most heat-resistant coral reefs, which makes the sinking of the Rubymar particularly concerning.
‘Corals dying’ as yet more bleaching hits heat-stressed Great Barrier Reef
- Both aerial and in-water surveys have shown that the southern section of the Great Barrier Reef is undergoing extensive coral bleaching.
- Surveys have also shown “limited bleaching” in the northern part of the Great Barrier Reef.
- However, scientists and reef managers plan to conduct more air and in-water surveys to further assess the coral bleaching across all parts of the Great Barrier Reef.
- Scientists suspect but have not yet confirmed that a seventh mass bleaching event since 1998 is currently underway; the last mass bleaching event on the Great Barrier Reef happened in 2022.
Should all marine reserves ban fishing? Not necessarily, new study shows
- A new study examined the performances of two types of marine protected areas: no-take MPAs, where all fishing activity is banned, and multiple-use MPAs, which allow certain forms of fishing.
- It found that no-take MPAs increased fish biomass by 58.2%, and multiple-use MPAs increased by 12.6% compared to zones without any form of protection; the study also found that both types of MPAs were more than 97% likely to improve fish populations.
- The authors suggest that multiple-use MPAs can provide “a viable and potentially equitable pathway to advance local and global conservation” when adequately designed and managed.
- However, an expert not involved in the study suggests that MPAs with full protection are more urgently needed to protect marine ecosystems like coral reefs.
Summit on migratory species sides with science, throws shade on deep-sea mining
- Representatives from 133 member states of the Convention on the Conservation of Migratory Species of Wild Animals (CMS) met in Samarkand, Uzbekistan, from Feb. 12-17 to discuss measures to protect migratory species on a global scale.
- Many decisions at the meeting, known as COP14, focused on the protection of marine species, including the listing of several species in the convention’s appendices, a draft decision on vessel strikes, and an updated resolution on climate change that urges parties to take measures to protect species from future threats.
- The convention also adopted a resolution urging parties not to engage with or support deep-sea mining until more scientific evidence is acquired. This resolution garnered criticism from the secretary-general of the International Seabed Authority (ISA), the U.N.-mandated body that governs deep-sea mining in international waters.
- While attendees say COP14 had many successes, some experts say that more action and resources are required to keeping species from sliding toward extinction.
Hong Kong as a reef fish haven? These scientists want to get the word out
- For the past 10 years, marine biologist and conservationist Stan Shea has been leading a citizen-science program called the 114°E Hong Kong Reef Fish Survey to compile data on local reef fish species and raise awareness about the marine environment.
- The program relies on a core network of around 50 volunteer divers, who assist Shea with his mission to raise awareness about Hong Kong’s aquatic life.
- There are likely about 500 reef fish species in Hong Kong, but only about 460 have been identified so far; Shea and his team aim to find and document as many of the other overlooked as possible.
- Shea is also working on a photographic book about Hong Kong’s reef fish, which will be published in 2026.
‘High Seas Treaty’ name is inaccurate and should center biodiversity (commentary)
- A new ocean governance treaty, formally called the “Agreement under the United Nations Convention on the Law of the Sea (UNCLOS) on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction” (BBNJ) was agreed to by the international community in 2023.
- As the negotiations wound down, a rebranding effort began, which dubbed the new agreement the ‘High Seas Treaty,’ which is not accurate and omits the most important term, biodiversity, but it’s not too late to re-think, re-frame, and re-name the agreement.
- “Calling it the High Seas Treaty was a choice, but there are better options, which are more accurate and do not bias the interpretation of the agreement…we argue that the shorthand should contain the word biodiversity,” say the authors of a new commentary.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
On Kaho’olawe, new technology could restore a sacred Hawaiian island
- The small Hawaiian island of Kaho‘olawe is a sacred site for Indigenous Hawaiians, who used it for navigational training, religious ceremonies, and fishing.
- But the island has faced decades of ecological destruction due to invasive plants and animals, erosion, and bombings as a test site by the U.S. military.
- A new conservation project has successfully tested a novel method using AI-equipped camera traps and an aerial drone to collect images of invasive cats, which have destroyed the island’s seabird populations, in dangerous and difficult-to-access parts of the island.
- But funding for the work on Kaho‘olawe remains scarce, and the drone project is now on hold as local organizations seek further funding to deal with the feral cats.
In East Java, social media push against Indonesia shark & ray trade lacks bite
- Over a period of four months in late 2023, Mongabay spoke with fishers and traders dealing primarily in rays and sharks in Indonesia’s East Java province.
- Advertisements for shark and ray products continued to feature on social media platforms despite pledges by companies to prevent users from conducting transactions in wildlife.
- Indonesia’s fisheries ministry said more needs to be done to enhance traceability to crack down on trade in protected shark and ray species.
From exporting coral to restoring reefs, a Madagascar startup rethinks business
- After her father died, Jeimila Donty took over her family’s coral export business and shifted its focus to conservation, creating Koraï.
- Donty is part of a young “pro-climate” generation that’s keen to incorporate the environment into business models.
- Koraï plants corals in Madagascan waters on behalf of other companies as part of their corporate social responsibility (CSR) commitments.
- The business is ambitious and faces challenges, such as recruiting workers and a lack of political support.
Pakistan bucks global trend with 30-year mangrove expansion
- Around the world, mangrove forests have undergone a decades-long decline that is just now slowing to a halt.
- In Pakistan, by contrast, mangroves expanded nearly threefold between 1986 and 2020, according to a 2022 analysis of satellite data.
- Experts attribute this success to massive mangrove planting and conservation, as well as concerted community engagement.
- Many in Pakistan are looking to mangroves to bolster precious fish stocks and defend against the mounting effects of climate change — even as threats to mangroves, such as wood harvesting and camel grazing, continue with no end in sight.
Cambodia sea turtle nests spark hope amid coastal development & species decline
- Conservationists in Cambodia have found nine sea turtle nests on a remote island off the country’s southwest coast, sparking hopes for the critically endangered hawksbill turtle (Eretmochelys imbricata) and endangered green turtle (Chelonia mydas).
- It’s the first time sea turtle nests have been spotted in the country in a decade of species decline.
- Two nests have been excavated to assess hatching success; conservationists estimate the nests could hold as many as 1,000 eggs.
- Globally, sea turtle populations are declining, largely due to hunting for food and the animals’ shells, used in jewelry; other threats to sea turtles include tourism development, pollution and climate change.
Mangrove crab sustainability is vital for fishers in Indonesia’s Aru Islands
- Mud crab fishing in Lorang village, Aru Islands, has been a vital livelihood since 2014, but a recent survey suggests signs of depletion, raising concerns among local fishers.
- The boom in crab fisheries began after a government moratorium on various commodities.
- Despite high economic value, a rapid assessment by Indonesian researchers reveals a decline in mud crab abundance, possibly due to overfishing exceeding natural regeneration.
- To address this, there’s a call for conservation efforts, including a wildlife protection reserve and agreements with neighboring villages to establish a “crab bank” for sustainable crab populations.
DNA probe uncovers threatened shark species in Thailand’s markets
- A shark DNA investigation has revealed the presence of shark species threatened with extinction in products commonly sold in Thailand’s markets.
- The study identified products derived from 15 shark species, more than a third of which have never been recorded in Thai waters, highlighting the scale of the international shark trade.
- Marine conservation groups say the findings underscore that consumers of shark fin soup and other shark products could well be complicit in the demise of threatened species that fulfill vital roles in maintaining ocean balance.
- Experts have called on Thai policymakers to improve traceability in shark trade supply chains, expand marine protected areas, and make greater investments in marine research.
Palau is the first nation to ratify treaty to protect high seas
- Palau has become the first nation to ratify the high seas treaty, which seeks to protect and manage ocean areas beyond national jurisdiction.
- At least two other nations, Chile and the Maldives, appear to be on the cusp of ratifying the treaty.
- A total of 60 nations must ratify the treaty for it to take effect.
First ever U.S. Indigenous Marine Stewardship Area declared in California
- The Tolowa Dee-ni’ Nation, Resighini Rancheria, and Cher-Ae Heights Indian Community designated the first ever Indigenous Marine Stewardship Area (IMSA) in the U.S. along the northern California coast.
- The tribes plan to steward nearly 700 mi2 (1,800 km2) of their ancestral ocean and coastal territories from the California-Oregon border to Little River near the town of Trinidad, California.
- As sovereign nations, the tribes say they’re not seeking state or federal agencies’ permission to assert tribally led stewardship rights and responsibilities; rather, they want to establish cooperative relationships recognizing their inherent Indigenous governance authority.
- The tribes aim to restore traditional ecological knowledge and management practices that sustained the area’s natural abundance before colonial disruption.
2023’s top ocean news stories (commentary)
- Marine scientists from six international research and conservation institutions share their list of the top ocean news stories from 2023.
- Hopeful developments this past year include a monumental global treaty to protect biodiversity on the high seas and the regulation of international trade in 97 species of sharks and rays under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
- At the same time, 2023 was the hottest year on record, with widespread bleaching of corals in the Caribbean and Great Barrier Reef, and many more hot years forecast as humanity’s emissions of greenhouse gases that cause global warming continue.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
Spain sanctions fishing vessels for illegally ‘going dark’ near Argentine waters
- The Spanish government sanctioned 25 of its vessels for illegally turning off their satellite tracking devices while fishing off the coast of Argentina between 2018 and 2021.
- Experts say ships that “go dark” by turning off their trackers often do so to partake in illicit behavior, such as crossing into a nation’s exclusive economic zone (EEZ) without authorization.
- While some have praised the Spanish government’s actions, one expert says he doesn’t believe the sanctions go far enough.
- Most fishing activity in this region is also unregulated and unmonitored, which raises environmental concerns.
AI and satellite data map true scale of untracked fishing and ocean industry
- A new study shows that more than 75% of industrial fishing activity and almost 30% of transport and energy activity in the oceans has not been tracked by public systems, revealing a significant gap in global observational data.
- The study, led by Global Fishing Watch, used AI to analyze 2 petabytes of satellite imagery collected between 2017 and 2021, providing unprecedented insights into hidden fishing hotspots and offshore energy infrastructure development.
- The research highlighted the potential of combining AI with Earth observation data to gain a more comprehensive understanding of ocean activities, which is needed to manage and improve the sustainability of the $2.5 trillion blue economy.
- The open-source code developed during the study can help inform policy for safeguarding ocean ecosystems, enforcing laws and identifying renewable energy expansion sites, the study authors said.
‘Really a sad day’ as Norway votes to allow deep-sea mining in Arctic waters
- Norway’s parliament has voted to allow deep-sea mining to commence in the Norwegian Sea, a move that has garnered criticism from scientists and environmentalists.
- While the Norwegian government insists that it can conduct deep-sea mining in a sustainable way, critics say these activities will put marine ecosystems and biodiversity at risk.
- Norway will open a 281,000-square-kilometer (108,500-square-mile) area of the ocean for deep-sea mining, which mostly falls along its continental shelf.
Salmon and other migratory fish play crucial role in delivering nutrients
- Pacific salmon can play a key role in transporting nutrients from marine to freshwater and terrestrial ecosystems.
- In the past, Pacific salmon and other anadromous fish that spawn in freshwater and spend part of their life in the ocean likely played a much larger role in global nutrient cycles, scientists find.
- But today, many populations of Pacific salmon and other anadromous fish are under pressure from habitat loss, overfishing, climate change, dams and other pressures that have greatly reduced their numbers, weight and ability to migrate freely.
- Population declines could further curtail their role in global nutrient transport in future, with increasing consequences, especially for nutrient-poor ecosystems that have relied in the past on migratory fish for significant nutrient additions.
Sumatran dugong hunter struggles to adapt to changing times
- The herbivorous dugong was classed as a vulnerable species in 1982 by the International Union for Conservation of Nature.
- Hunters like Munsa in Bintan, a cluster of islands between Sumatra and Singapore, have retired from hunting the mammal in response to conservation initiatives.
- However, Munsa complains that the family’s income has plummeted, and that he needs government to provide alternative livelihoods.
Photos: Top species discoveries from 2023
- Scientists described a slew of new species this past year, including an electric blue tarantula, two pygmy squid, a silent frog, and some thumb-sized chameleons.
- Experts estimate less than 20% of Earth’s species have been documented by Western science.
- Although a species may be new to science, it may already be well known to local and Indigenous people and have a common name.
- Many new species of plants, fungi, and animals are assessed as Vulnerable or Critically Endangered with extinction as soon as they are found, and many species may go extinct before they are named, experts say.
Peru’s ports allow entry of Chinese ships tied to illegal fishing & forced labor
- Experts say that as of October, around 75 foreign vessels, most of them Chinese, entered Peruvian ports in 2023 without carrying a satellite tracking device Peru requires of foreign fleets.
- Mongabay Latam analyzed the background of 56 vessels that entered between June and August 2023 and found that at least 10 belonged to companies with a history of illegal fishing or forced labor.
- Experts cite deficiencies in port inspections and say Chinese-flagged ships have continued to turn off their satellite systems on the Peruvian border at sea to avoid detection.
Farewell, Java stingaree: Scientist declare the first marine fish extinction
- In December 2023, scientists declared the Java stingaree (Urolophus javanicus), a species of stingray, extinct.
- It’s the first marine fish confirmed to have gone extinct due to human actions.
- Scientists know very little about the species, which they haven’t spotted since a naturalist purchased the specimen from which he described the species at a fish market in Jakarta in 1862.
U.S. auctions off endangered whale habitat for oil and gas drilling
- On Dec. 20, the U.S. Department of the Interior’s Bureau of Ocean Energy Management (BOEM) held a lease sale to auction off oil and gas drilling rights in the Gulf of Mexico.
- Environmental groups and the U.S. Interior Department had tried to postpone this sale due to concerns about protecting the critically endangered Rice’s whale, a species whose key habitat overlaps with the lease sale areas.
- Scientists estimate there are fewer than 50 Rice’s whales left, and that the primary threat to the species is the oil and gas industry.
- While the lease sale went through without any protections for the Rice’s whale, environmental groups continue to explore legal and political avenues to ensure the species’ survival.
‘Shark dust’ helps researchers ID threatened species in Indonesia fish trade
- Researchers have developed a new tool to identify a wide range of threatened and protected sharks being processed at fish factories in Indonesia.
- The method relies on DNA analysis of “shark dust,” the tiny fragments of skin and cartilage swept from the floors of fish-processing plants and export warehouses.
- From 28 shark dust samples collected from seven processing plants across Java Island, they found the genetic sequences of 61 shark and ray species.
- About 84% of these are CITES-listed species, meaning there are official restrictions in place on the international trade in these species.
The ex-shark fishermen teaching schoolkids how to protect the environment
- Shark conservationist Kathy Xu joined with ex-shark fishermen on the Indonesian island of Lombok to launch The Dorsal Effect.
- The eco-enterprise teaches students about the marine environment through snorkeling trips, coral health checks and beach trash cleanups.
- The Dorsal Effect helps provide an alternative source of income for the former shark fishermen of Lombok and aims to stop the shark finning trade.
Did the tides turn for oceans at COP28? Climate summit draws mixed reviews
- The ocean featured in many negotiations around the climate crisis at the U.N. climate summit known as COP28, which took place in Dubai between Nov. 30 and Dec. 13.
- The final version of the global stocktake (GST), which served as the main agreement for COP28, referred to the importance of protecting and preserving the ocean and coastal ecosystems, and called for “ocean-based action.”
- However, experts say the GST does not capture the necessary urgency to curtail fossil fuel emissions and may encourage the launch of controversial and still-untested geoengineering techniques that aim to lock away carbon in the ocean.
- COP28 was also the stage for several large pledges to support the protection of marine and coastal ecosystems.
In reversal, Mexico calls for moratorium on international deep-sea mining
- On Nov. 21, Mexico became the latest nation to call for a moratorium on deep-sea mining in international waters.
- Before this announcement, some Mexican delegates to the International Seabed Authority, the UN-associated body tasked with regulating the activity, had expressed support for fast-tracking mining rules that would enable mining to start.
- This announcement came two weeks after member states of the ISA met to work on a set of regulations, which are currently far from complete.
- While calling for a moratorium on seabed mining in international waters, it remains unclear if Mexico will allow deep-sea mining in its own waters; there are several mining concessions in the Bay of Ulloa, off the coast of Baja California.
90 NGOs question Thailand Prime Minister on fisheries deregulation plan (commentary)
- Thailand’s new government is promising to “unlock” fisheries by reducing regulation and transparency around vessels’ activities.
- A letter signed by 90 NGOs questions the National Fishing Association’s proposals for fisheries reform, including returning to day-rate salaries, permitting child labor and weakening punitive measures designed to deter illegal, unregulated and unreported (IUU) fishing.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Jamaica battles relentless plastic pollution in quest to restore mangroves
- In recent decades, mangroves in Jamaica have declined rapidly, from about 15,000 hectares (37,000 acres) in the 1970s to about 9,945 hectares (24,574 acres) now.
- Currently there are several efforts to restore mangroves in the island country, as experts recognize the many ecosystem services they provide, including the protection and stabilization of coastlines as human-induced climate change worsens.
- However, restoration efforts face numerous challenges: Near Kingston, the main one is voluminous tides of plastic waste, which can stunt mangrove growth or kill them.
Last of the reef netters: An Indigenous, sustainable salmon fishery
- Reef net fishing is an ancient, sustainable salmon-harvesting technique created and perfected by the Lummi and other Coast Salish Indigenous people over a millennium.
- Rather than chasing the fish, this technique uses ropes to create an artificial reef that channels fish toward a net stretched between two anchored boats. Fishers observe the water and pull in the net at the right moment, intercepting salmon as they migrate from the Pacific Ocean to the Fraser River near present-day Washington state and British Columbia.
- Colonialism, government policies, habitat destruction, and declining salmon populations have separated tribes from this tradition. Today, only 12 reef net permits exist, with just one belonging to the Lummi Nation.
- Many tribal members hope to revive reef net fishing to restore their cultural identity and a sustainable salmon harvest but face difficulties balancing economic realities with preserving what the Lummi consider a sacred heritage.
Indonesia launches new front in climate campaign focusing on seagrass
- Indonesia has published a road map for seagrass protection and rehabilitation, as part of its efforts to mitigate the impacts of the climate crisis.
- Seagrass meadows are estimated to sequester carbon dioxide from the atmosphere at a much greater rate, hectare for hectare, than even tropical rainforests.
- Indonesia has long been recognized as a crucial country for protecting the underwater flowering plants, as it’s estimated to host at least a tenth of the world’s seagrass meadows.
Fish out of water: North American drought bakes salmon
- An unprecedented drought across much of British Columbia, Canada, and Washington and Oregon, U.S., during the summer and fall months of June through October could have dire impacts on Pacific salmon populations, biologists warn.
- Low water levels in streams and rivers combined with higher water temperatures can kill juvenile salmon and make it difficult for adults to swim upriver to their spawning grounds.
- Experts say relieving other pressures on Pacific salmon and restoring habitat are the best ways to build their resiliency to drought and other impacts of climate change.
Lethal or not? Australia’s beaches are a crucible for shark control methods
- For decades, Australia’s east-coast states have attempted to keep beachgoers safe from sharks by deploying entangling shark nets and culling species deemed dangerous.
- Recent figures published by the state of New South Wales reveal that almost all the animals caught in the nets during the 2022/23 summer season were “nontarget” species, including turtles, dolphins and endangered shark species, the majority of which died due to entanglement in the nets.
- In contrast, the west-coast state of Western Australia has abandoned a shark culling regime in favor of nonlethal alternatives, such as drone monitoring and “eco barriers,” swimming enclosures that keep marine life out but do not risk entanglement.
- Despite calls from environmental groups to exclusively adopt nonlethal technologies, shark control programs are continuing in both New South Wales and its northern neighbor, Queensland, during the 2023/24 Australian summer.
Dominica set to open world’s first reserve centered around sperm whales
- The tiny island nation of Dominica has announced that it will create a 788-square-kilometer (304-square-mile) reserve to protect endangered sperm whales.
- Most of the sperm whales that live off the coast of Dominica are part of the Eastern Caribbean Clan, which currently has a population of fewer than 300 individuals.
- Sperm whales in this region are threatened by fishing gear entanglement, pollution, boat strikes, and even tourism.
- The new reserve aims to protect whales by restricting activities such as fishing, vessel traffic and tourism, while not entirely banning them.
Fisheries managers should act to protect swordfish this month (commentary)
- Between 1960 and 1996 swordfish declined more than 65%, the average size of fish caught shrank, and the species became severely overfished in the North Atlantic.
- A campaign led by consumer groups and chefs helped convince regulators like ICCAT to take action, to the point that the fishery is now considered ‘recovered.’
- Top chef and restaurateur Rick Moonen’s new op-ed argues that it’s time for a next step: “Now ICCAT has another opportunity to improve the long-term health of the swordfish population. This November, ICCAT members can adopt a new management approach for the stock and lock in sustainable fishing,” he says.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Climate change threatens the North Atlantic’s currents, ecosystems and stability (analysis)
- The Atlantic Meridional Overturning Circulation (AMOC) is a vital component of the Earth’s global ocean circulation, and encompasses a network of currents within the Atlantic Ocean.
- Current research shows a possible slowing or stopping of the AMOC due to climate change, with direct and major impacts on marine ecosystems, weather variability, and food security in North America and Europe, and by extension the rest of the world.
- “A significant and sustained weakening of the AMOC has the potential to lead to its outright collapse, which would have far-reaching and mostly irreversible effects on marine and terrestrial ecosystems,” a new analysis explains.
- This post is an analysis. The views expressed are those of the author, not necessarily of Mongabay.
Galápagos waters yield massive deepwater corals in latest biodiversity find
- Researchers have found two new deepwater coral reefs, including one that spans more than 800 meters, or half a mile long, in the waters around the Galápagos Islands.
- They were discovered through the process of mapping the seafloor in Galápagos Marine Reserve with laser scanning technology.
- The reefs displayed a diversity of stony coral species and other organisms such as crustaceans, sharks and skates.
- The discovery of these two reefs occurred six months after the first discovery of deepwater reefs in the waters of the Galápagos Islands.
Not MPAs but OECMs: Can a new designation help conserve the ocean?
- To meet the landmark commitment struck last year to protect 30% of the ocean by 2030, the world’s nations will have to designate many new and large marine protected areas. But there’s also a different, less familiar option for meeting that target: “other effective area-based conservation measures,” or OECMs, areas that are not necessarily designed to protect biodiversity — they just happen to do so.
- Countries are now working to identify areas that meet the criteria and register them as OECMs, including in Africa where a recent webinar highlighted the promises and pitfalls of this relatively new conservation designation.
- Conservationists say OECMs could bring many positives, including the development, recognition or financing of de facto conservation areas led by local communities or Indigenous peoples.
- However, they also warn of the dangers of “bluewashing” or creating so-called paper OECMs that fail to deliver real conservation benefits in the rush to meet the 2030 deadline.
O.K. Coral: Outlaw fisher turns reef marshal in Indonesia’s Sumbawa
- Former dynamite fisher Amiruddin has ceased using destructive fishing practices and become a marine conservationist in his native Sumbawa.
- In 2010, Amiruddin was arrested and almost died while using poison to kill fish off Sumbawa’s west coast.
- Today he has installed lattices to support coral growth in the islands where he fished with explosives and poison in his youth.
Amid record melting, countries fail again to protect Antarctic waters
- The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), the intergovernmental body charged with protecting marine life and managing fisheries in the Southern Ocean, met from Oct. 16-27 in Hobart, Australia, with 26 member countries and the European Union participating.
- For the seventh year in a row, the CCAMLR declined to establish new marine protected areas (MPAs) around Antarctica, despite having committed to creating “a representative network of MPAs” in 2009.
- Scientists, conservationists and some governments have been pushing for greater protections, concerned that the melting ice in Antarctica has reached alarming levels, jeopardizing some key populations of penguins, krill, whales, seals and other marine animals.
- The stalemate came even as a new threat to wildlife emerged in the region: the discovery last week that a virulent form of avian flu had reached Antarctic bird colonies.
Can blue bonds boost investment in ocean conservation? (commentary)
- Although they’re new vs. green bonds, the blue bond market is poised to take off as governments, companies, and investors begin to realize the importance of the blue economy and the relationship between climate change and the oceans.
- The Republic of Seychelles issued the first blue bond in 2018, with funds dedicated to expanding marine protected areas and improving fisheries governance. To date, only 25 other blue bonds have been issued.
- “The future of the blue bond market hinges on aligning financial incentives with environmental objectives, fostering innovation, and building a robust infrastructure that inspires trust and commitment from a diverse set of stakeholders,” a new op-ed states.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
New Caledonia expands strictly protected coverage of its swath of the Pacific
- New Caledonia, an overseas territory of France in the Pacific, recently announced that it would highly protect 10% of its economic exclusive zone (EEZ).
- These new highly protected areas will be off-limits to industrial activities such as fishing, drilling and mining.
- A decade ago, New Caledonia designated its entire EEZ as a marine protected area, the Natural Park of the Coral Sea, but industrial activities were permitted across 97.6% of that area at the time.
Climate refugees? As the sea warms, corals thrive in Japan’s cool waters
- As tropical and subtropical coral reefs succumb to bleaching due to climate change in many parts of the world, the idea that they could take refuge in cooler, temperate seas has offered cause for hope.
- For a while, this is exactly what researchers thought was happening in Japan, where corals are replacing seaweed as the dominant benthos in many places, shaking up both ecosystems and coastal economies.
- But the latest research has tempered those hopes, showing that it’s mainly Japan’s genetically distinct temperate corals that have been expanding their range and edging out seaweed.
- The long-term implications of this shift are unclear, but researchers say it could take tens of thousands of years for these new high-latitude coral communities to evolve the structures, niches and symbioses necessary to support biodiversity on par with the world’s current tropical reefs.
With record ocean temps, is the Great Barrier Reef facing catastrophe?
- The inaugural international edition of the famed South by Southwest (SXSW) film festival and conference took place from October 15-22, 2023 in Sydney and Mongabay spoke with some of the most interesting presenters there.
- On this edition of the Mongabay Newscast, multiple guests working in coral reef conservation, kelp reforestation and sustainable agriculture detail their projects and challenges they’re tackling.
- Like the catastrophic Great Barrier Reef bleaching event of 2016, if the current conditions line up just right, “we could lose a huge part of the reef by February,” says guest Dean Miller of the Forever Reef Project, which is now racing to add the final coral specimens to its “biobank.”
- Guests also include John “Charlie” Veron from the Forever Reef Project, Mic Black from Rainstick, and Adriana Vergés from the Kelp Forest Alliance.
South Africa’s penguins heading toward extinction; will no-fishing zones help?
- With just 10,000 breeding pairs left, the endangered African penguin (Spheniscus demersus) could be extinct in the wild by 2035 if the current rate of population decline continues.
- To protect the bird’s food supply and slow its population collapse, South Africa is throwing a protective no-fishing cordon around its main breeding colonies for a period of 10 years.
- But the devil is in the details, and conservationists say the cordons are too small to ensure the penguins get enough fish.
- Negotiations over whether to adjust the cordons are continuing in advance of an early 2024 deadline.
Iceland’s whaling paradox (commentary)
- As Iceland’s latest whaling season comes to a close, a heated debate continues over the ethics and sustainability of the country’s policy on these marine mammals.
- Filmmaker and activist Micah Garen — who co-directed the documentary “The Last Whaling Station” — shares his thoughts on what may be the nation’s last whaling season.
- “The paradox of whaling is the inherent contradiction between a utilitarian and Kantian world view. If you believe your choices matter, then ending whaling now is the only ethical, moral and philosophical choice we can make,” he argues.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
An ‘aquatic moonshot’ in Vietnam aims to fight livestock methane with seaweed
- Scientists from the R&D company Greener Grazing aim to reduce global greenhouse gas emissions by growing and marketing a red seaweed (Asparagopsis taxiformis) as an additive for livestock feed.
- Worldwide, some 3 billion cattle and sheep produce roughly 231 billion pounds of methane annually; researchers estimate some 100 million tons of A. taxiformis would be needed to eliminate 98% of those emissions, a figure that’s roughly three times current global production of all seaweeds.
- Greener Grazing is experimenting with growing A. taxiformis in central Vietnam’s Van Phong Bay, but there are challenges.
- Skeptics also say the benefits of seaweed are limited in both the amount of methane that can be reduced as well as the capacity for scaling production to meet the size of the problem.
Seaweed: The untapped economic potential for Bangladesh
- Bangladesh currently produces some 400 tons of seaweed, valued at 55 million taka (about $500,000), while a study suggested the country could produce 50 million tons of seaweed annually by 2050.
- Despite the potential to grow and earn more foreign currency through export, the sector is dealing with a number of difficulties, including inadequate investment as well as proper guidelines and regulations.
- According to the Food and Agriculture Organization (FAO), seaweed farming is one of the fastest-growing aquaculture sectors globally, with an annual production of about 33 billion tons, valued at $11.8 billion.
How the United Nations, kids and corporations saved the Red Sea from an oil disaster
- In August, an international effort led by the U.N. averted a massive oil spill in the Red Sea.
- The FSO Safer, a deteriorating oil tanker anchored in Yemen’s Marib Basin, posed a 1.14-million-barrel environmental and humanitarian threat, with a potential $20 billion cleanup cost.
- Even schoolchildren from Westbrook Elementary School in Maryland recognized the urgency and initiated their own fundraising efforts, but most oil companies with historical involvement in the Marib Basin have failed to contribute so far.
- While some nations and organizations stepped up to help, ongoing challenges in securing funding highlight the need for collective responsibility in preventing environmental disasters.
Frogs in the pot: Two in five amphibian species at risk amid climate crisis
- The extinction risk for more than 8,000 amphibian species has significantly increased in the past 18 years, primarily due to climate change impacts, with two in five amphibians now threatened, a new study shows.
- Amphibians are particularly vulnerable because of their permeable skin and specific habitat needs; diseases like the chytrid fungus further threaten their survival.
- Salamanders are the most at risk, with a lethal fungus in Europe posing a significant threat, especially to the diverse salamander population in North America.
- The study emphasizes the importance of global conservation efforts, with habitat protection showing positive results for some species, and highlights the broader context of the ongoing global biodiversity crisis.
As climate change hits the Turkish coast, more marine reserves are needed (commentary)
- The Mediterranean Sea’s marine life is facing many threats, not least of which is the rapidly rising water temperatures.
- The sea is warming faster than the global average, and with that warmth comes unwelcome tropical visitors like lionfish, which prey on native marine biodiversity, spurring conservationists to focus fishing pressure on these voracious predators, but that’s not all they’re doing.
- “We believe the expansion of the marine protected area network is now an essential next step, and we are working with the Turkish government to make this happen,” one such conservationist writes in a new op-ed.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Seventy-plus nations sign historic high seas treaty, paving way for ratification
- As of Sept. 22, 76 nations and the European Union had signed the high seas treaty while gathered at the 78th U.N. General Assembly in New York.
- After signing the treaty, each nation must ratify it. Then, once 60 nations have ratified the treaty, it will come into force after 120 days.
- The high seas encompass two-thirds of the world’s oceans, but only 1% currently has protected status.
First Nation and scientists partner to revive climate-saving eelgrass
- Seagrass meadows, of which eelgrass is a key species, are some of the most biodiverse and productive ecosystems in the ocean, and play a crucial role in sequestering carbon.
- But eelgrass is disappearing rapidly around the globe, and in Canada, questions remain about where exactly these meadows are distributed, and how effective they are at storing carbon.
- A collaborative project between marine biologists and Indigenous Mi’kmaq communities is attempting to answer these questions in eastern Canada while also restoring lost eelgrass meadows.
- The project could help with eelgrass’s long-term survival in the area, as researchers identify eelgrass populations that are more resilient to climate change, and communities work toward eelgrass conservation.
Tien Hai Nature Reserve latest battleground in Vietnam’s push for development
- In April, the government of Vietnam’s Thai Binh province quietly issued a decision to remove protection from 90% of Tien Hai Nature Reserve, which forms an integral part of the UNESCO-recognized Red River Delta Biosphere Reserve.
- After environment activists publicized the decision last month, public backlash prompted officials to pause plans to develop a resort in the degazetted area — at least for now.
- The project is just one of several recent cases in which the country’s protected wetlands and forests have been threatened by development projects.
‘Totally unsustainable’ sand mining harms marine environments, new data suggest
- New data from the newly launched platform Marine Sand Watch suggest that the dredging industry is extracting about 6 billion tons of sand from the marine environment annually.
- Experts say the extraction of sand can have numerous impacts on the marine environment, such as harming biodiversity, polluting water and making coastlines more vulnerable to sea level rise.
- While the sand mining industry is currently operating at unsustainable levels, experts say there are solutions to mitigate its damage.
For the oceans, global community must fund Sustainable Development Goal 14 (commentary)
- Oceans sustain life by providing myriad ecosystem services and foods which over three billion people depend on for survival, so its conservation is covered in Sustainable Development Goal (SDG) 14.
- Though #14 is underfunded, leaders of the global community can take action during the 2023 SDG Summit taking place today and tomorrow, 18-19 September, in New York City.
- “We call on the President of the General Assembly and donor governments to increase investments in the ocean [as it is] vital to the success of each of the other sustainable development goals. We must ensure a vital ocean for the billions that depend upon its health,” a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
In Indonesia, ‘opportunistic’ whale shark fishery shows gap in species protection
- Indonesia has since 2013 banned the capture, trade and exploitation of whale sharks, a protected species.
- Yet scores of records from 2002-2022 shown whale sharks continue to be butchered and sold along the southeastern coast of Java Island after either beaching or being unintentionally caught by fishers, according to a new study.
- The continuing illegal exploitation shows the need for more awareness raising against it by conservation authorities and groups, experts say.
- Indonesia is home to the longest coastline in Asia, and its waters serve as both a habitat and an important migratory route for species of marine megafauna like whale sharks.
Study finds old pear trees make for surprisingly rich reef habitats
- In a new study, researchers used old pear trees to create artificial reefs and settled them in the Wadden Sea in the Netherlands to see what kinds of marine biodiversity aggregated on or around them.
- They found that the tree reefs attracted a surprising amount of biodiversity over a short period of time, including sessile organisms like barnacles and mobile species like fish and crabs.
- The authors say tree reefs can be replicated in other parts of the world, mainly temperate regions.
International outcry as Iceland lifts ban on what could be last whale hunt
- The Icelandic government has announced that commercial whaling will recommence following a two-month suspension of the activity, albeit with increased monitoring and stricter hunting regulations.
- The government temporarily banned whaling in June due to animal welfare concerns, but the ban expired on Aug. 31.
- The decision to restart whaling has drawn criticism from environmentalists and animal rights advocates.
- Only one company in Iceland currently has a whaling license, and it’s set to expire this year, with no guarantee the government will renew it for the coming years.
Hope, but no free pass, as Pacific corals show tolerance to warming oceans
- New research suggests that coral reefs in the Pacific islands of Palau are becoming increasingly tolerant to thermal stress brought on by climate change.
- The study found that Palau’s coral reefs appeared to suffer less bleaching over three successive marine heat waves in 1998, 2010 and 2017.
- While the findings provide some hope for coral reefs, one expert says the study has some limitations in providing a clear picture of how corals respond to different heat events.
- Scientists also say that reducing carbon emissions is essential to safeguard coral reefs — and to secure the planet’s future.
Off Mexico’s coast, world’s largest limpet is slipping into extinction
- Scutellastra mexicana, the world’s largest limpet, is at risk of extinction and requires urgent conservation action, according to a group of researchers.
- Once widely dispersed, the few remaining viable populations of these sea snails are now found in Mexico’s Islas Marias, a biosphere reserve. Though officially protected, the limpet continues to be harvested.
- Limpet species such as S. mexicana play an important role in maintaining coastal ecosystems, and research suggests they can mitigate some of the effects of warming oceans.
- Researchers are calling for “extreme protection” for S. mexicana and the Islas Marías to halt the species’ decline and potential extinction.
Expected ship traffic to LNG Canada port could see whale deaths also rise
- The nutrient-rich ancestral waters of the Gitga’at First Nation in northern British Columbia are a critical habitat for fin, humpback and killer whales.
- The development of a $35.5 billion LNG terminal threatens these whales, as shipping traffic in the region is projected to surge, leading to more frequent encounters between whales and ships, a recent study warns.
- It uses whale movement data and predicted ship traffic modeling to conclude that two fin whales and 18 humpback whales could be killed each year in ship strikes in Gitga’at territorial waters.
- Researchers suggest mitigation measures like reducing ship speeds in whale hotspots and restricting ship traffic during August, when whales are most abundant in these waters.
‘All will be well’: Q&A with Kenyan fisher turned coral gardener Katana Ngala
- Once a fisherman, Katana Ngala has been restoring corals near his home in Kuruwitu, Kenya, for more than 20 years.
- Early on, the area’s coral was degraded due to destructive fishing practices and coral bleaching, and he and other fishermen were experiencing diminished catches.
- Now the coral and fish are flourishing in the area, which the local community set aside as a no-fishing zone.
- Ngala spoke about the changes he’s seen in the coral garden over time and how he shares his commitment to the sea with fishers, students, scientists and the wider community in an interview with Mongabay at his seaside coral workshop.
To protect the oceans, we must map them (commentary)
- About 80% of our oceans remain “unmapped, unobserved, and unexplored,” according to NOAA.
- Technologies like un-crewed marine drones, high-resolution satellites, and remote operating vehicles are now being paired with modern digital mapping techniques to reveal critical new insights about the oceans.
- “Considering we’ve barely mapped a quarter of [the oceans] so far, imagine what we could know, what we could prepare for, if every inch was mapped,” a new op-ed suggests.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Kenyan fishers put new twists on an age-old marine conservation system
- Over the past two decades Kenyan fishing communities have been setting up no-fishing zones called tengefus, Swahili for “set aside.”
- The idea was inspired by the fishing habits of their forebears, who prior to colonization established seasonal fishing closures to ensure plentiful harvests.
- Today there are 22 tengefus in various stages of development in the country, some more successful than others.
- Successful tengefus have seen fish populations and coral cover increase, and they’ve established tourism enterprises that fund community initiatives. To work, experts say tengefus need support from communities, donors and the government.
Video: Rio de Janeiro’s defender of mangroves
- Guanabara Bay in Rio de Janeiro has suffered for decades from inefficient sewage treatment, oil spills and mangrove deforestation.
- For more than 30 years, biologist Mario Moscatelli has been fighting to reverse this process and revitalize the landscape.
- For denouncing corruption, environmental crimes and government inaction, he faced intimidation and even death threats.
Indonesian illegal shark and ray exports remain rampant amid poor monitoring
- Indonesia allows the trade of some endangered shark and ray species, but illegal exports remain rampant and unchecked.
- Mongabay-Indonesia conducted an investigation earlier this year to learn about the regulations, the loopholes and the challenges within the complex trade and fisheries of sharks and rays.
- The investigation found that the lack of oversight in the field was the leading cause of illegal shark and ray trade in the country.
- Indonesia is home to more than a quarter of the world’s 400 known shark species; a fifth of all shark species are endangered.
Prickly babies: A Jamaican nursery aims to restore sea urchins felled by disease
- The long-spined sea urchin (Diadema antillarum) is a key algae grazer in the Caribbean. A disease outbreak in the 1980s killed off most of the urchins, resulting in the overgrowth of many Caribbean coral reefs with algae.
- Last year, a recurrence of the disease hampered the species’ slow recovery. This time, scientists were able to discover the culprit, which they revealed in a recent paper.
- The waters of Jamaica’s Oracabessa Bay Fish Sanctuary remained largely unaffected by the disease. Scientists there collected healthy long-spined sea urchins and started an urchin nursery in hopes of restoring the species on reefs around the island.
- This story was produced with support from the Pulitzer Center.
Study reveals turtles’ millennia-old food affair with North African seagrass
- Researchers have traced the 3,000-year-old “food footprints” of endangered green sea turtles around the Mediterranean.
- By comparing turtle bone samples from Bronze and Iron Age archaeological sites to skin samples from turtles they’re tracking by satellite today, they’ve uncovered turtles’ enduring preference for the same sea meadows.
- The findings highlight the importance of protecting these underwater meadows, which face degradation due to conversion, pollution and climate change.
The endless struggle to clean up Rio de Janeiro’s highly polluted Guanabara Bay
- Once a nursery for marine life, Guanabara Bay in Rio de Janeiro is now dying from the dumping of thousands of liters of sewage into its waters; artisanal fishers now survive by picking up the garbage that floats in the bay.
- Faced with failed promises of de-pollution by the government, civil society organized itself, creating areas of environmental protection and pressuring the companies responsible for basic sanitation in the state, which is still deficient today.
- On the shores of the Rodrigo de Freitas lagoon, a biologist started replanting the mangroves; life returned and the site has become a model of what can be done to save the Guanabara Bay.
Scores of parliamentarians renew opposition to deep-sea mining at international meeting (commentary)
- As the International Seabed Authority Assembly gathers in Kingston, Jamacia, more than 70 Parliamentarians from 25 countries have renewed their support for a moratorium on deep-sea mining.
- The group also urges all members of the ISA Assembly to work swiftly towards this goal.
- Deep sea mining is a potential source of useful metals to enable the world’s transition to renewable energy, but its impact on marine ecosystems and the socieites that rely on them is still poorly understood, even as mining companies race to begin operations.
- This article is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
Airport proposal for Malaysian island doesn’t fly with conservationists
- A proposal to build an international airport on Tioman Island in Malaysia would destroy coral reefs in the heart of one of the country’s most biodiverse marine parks and have wide-ranging impacts on local communities and biodiversity.
- Plans for the airport were rejected by authorities in 2018 due to the scale of the environmental impacts it would cause, but government officials are again considering an environmental impact assessment for the development.
- Many of the island’s 3,000 residents have been left in the dark about the plans, which could wipe out livelihoods in two of the island’s seven villages.
- Critics of the project recommend authorities focus on upgrading an existing airstrip on the island to accept larger aircraft and in the meantime invest in sustainable, meaningful, nature-based tourism.
Clean me a river: Southeast Asia chokes on Mekong plastic pollution
- New research shows that the drift of microplastics from the Mekong River to the coastlines of countries around the South China Sea depends on variable factors, including seasonal changes in winds and ocean currents.
- The Philippines is most exposed to plastic waste that mainly drifts from the Mekong River to the sea during the monsoon season, with 47% of the stranded particles ending up on its coast, followed by Indonesia at 24%, Vietnam at 17%, and Malaysia at 8%.
- Environmental advocates say the findings of this study underscore the importance of international cooperation in combating plastic pollution, which harms marine biodiversity and coastal economies.
Tag team effort brings tech to aid leatherback turtle conservation
- In Puerto Rico, scientists and conservationists are deploying drones and satellite tags to gather data about leatherback sea turtles.
- Leatherback sea turtles, the largest species of turtles in the world, have seen their populations decline due to poaching, habitat loss and bycatch in fishing nets.
- Two teams are now collaborating to use drones to identify nesting sites in Maunabo in Puerto Rico.
- They’re also tagging the animals to understand more about their migration patterns once they leave the nesting beach.
Sharks deserve our appreciation and protection (commentary)
- Shark Awareness Day is celebrated on July 14 every year: though widely feared and sometimes vilified, sharks actually play a key role in ocean health and are rarely a threat to humans.
- “We must all take action to protect sharks, and raising awareness and educating others about the importance of sharks is a great spot to start,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Keep it down: U.N. report lists ways to reduce ocean noise pollution
- A new report published by the U.N.’s Convention on the Conservation of Migratory Species of Wild Animals (CMS) outlines possible solutions to human-caused ocean noise that impacts marine life.
- It focuses on three main types of underwater noise: shipping, seismic air gun surveys, and pile driving.
- Lindy Weilgart, the report author, said she believes it’s essential to move toward finding solutions rather than only studying the impacts of human-caused ocean noise.
- An outside expert praised the report but also questioned the likelihood of the suggestions being followed, and argued that the noise impacts of wind turbines have not been fully considered.
Blue carbon deserves a green light for the climate fight (commentary)
- Marine habitats like mangrove forests, seagrass meadows, salt marshes, and kelp forests cover just 0.2% of the ocean surface and provide shelter & food for myriad life forms while containing 50% of the carbon sequestered in marine sediments.
- Yet at a time when the world needs to keep carbon sequestered to mitigate the effects of climate change, about 35% of the world’s mangroves and 30% of all seagrass meadows have been lost or degraded.
- A new op-ed argues that the world should be moving to reverse these trends: “We are currently throwing away a golden opportunity to tackle the climate crisis, bolster sustainable fisheries and allow wildlife to thrive.”
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Tangled in marine debris, skate egg cases dry up and die on Peruvian beaches
- A new study has found that shorttail fanskate populations may be being affected by plastic pollution.
- The skates mistake abandoned fishing nets and other debris for seaweed and attach their eggs to them, unaware that the debris could wash up on the shore where the eggs will dry out.
- Shorttail fanskates (Sympterygia brevicaudata) are considered near threatened by the International Union for Conservation of Nature (IUCN).
Brazil claims record shark fin bust: Nearly 29 tons from 10,000 sharks seized
- Brazilian authorities announced the seizure of almost 29 tons of shark fins, exposing the extent of what they described as illegal fishing in the country. The previous record for the largest seizure reportedly took place in Hong Kong in 2020, when authorities confiscated 28 tons of fins.
- The seized fins, reportedly destined for illegal export to Asia, came from an estimated 10,000 blue (Prionace glauca) and anequim or shortfin mako (Isurus oxyrinchus) sharks, according to Brazil’s federal environmental agency IBAMA. Shortfin makos recently joined the country’s list of endangered species.
- IBAMA is filing infraction notices and fines against two companies over the seized fins. Other firms remain under investigation for illegal shark fishing related to the seizure, according to the agency.
- Through detailed analyses of the origins of these fins, an IBAMA statement said the agency identified a wide range of irregularities, including the use of fishing authorizations for other species and the use of fishing gear to target sharks.
New hope in the Mediterranean: Scientists find deep corals withstand heat waves
- Over the past decade, the Mediterranean Sea has experienced frequent, destructive marine heat waves that have impacted a diversity of marine life, including red gorgonians (Paramuricea clavata).
- In 2022, researchers launched “Noah’s Ark of the Deep,” an expedition to study the gorgonians in the western Mediterranean Basin. In April, the second mission of the expedition explored gorgonians below 50 meters (164 feet).
- While the gorgonians in shallow waters suffered as temperatures rose, corals in deeper waters appeared untouched by the impacts of thermal stress.
- Researchers are currently trying to understand if these deeper gorgonians can help repopulate shallow populations if climate conditions allow them to regenerate.
‘No future’: Iceland cancels whale hunt over animal welfare concerns
- Citing animal welfare concerns, Iceland has suspended its whale hunting season until Aug. 31.
- This decision follows the release of a government-commissioned independent report that found that many whales suffer immensely after being harpooned.
- Iceland had been set to kill around 200 fin whales, up from the 148 it killed in 2022.
Penguins ‘enrich our lives’: Q&A with Pablo Borboroglu, protector of penguins
- Pablo Garcia Borboroglu, a marine biologist from Patagonia, Argentina, was recently awarded the 2023 Indianapolis Prize for his work in protecting penguins around the world.
- Penguins face many threats, including pollution, human disturbance, and the impacts of fisheries and climate change.
- Borboroglu has helped protect penguins through various actions, including establishing marine and terrestrial protected areas, conservation research programs, and educational programs.
Science and culture join forces to restore 120 miles of Hawaiian reefs
- A new program in Hawai‘i, known as Ākoʻakoʻa, will focus on restoring 193 kilometers (120 miles) of coral reefs off the west of the Big Island, which have been in
decline for the past 50 years.
- A key aspect of the program will be the building of a new research and coral propagation facility in Kailua-Kona on the Big Island.
- While the program will be largely science-driven, it will also rely on the traditional knowledge of community leaders and cultural practitioners.
Europe’s top science panel supports call for moratorium on deep-sea mining
- The European Academies’ Science Advisory Council has announced its support for a moratorium on deep-sea mining.
- In a new report, the council conveys its skepticism that deep-sea mining is necessary to meet the needs of critical minerals for renewable technologies.
- It also points out that deep-sea mining would cause irreparable harm to marine ecosystems, and that the mining regulator lacks a scientific definition of what qualifies as serious harm.
- Many European nations and companies currently possess licenses to explore the international seabed for resources, although exploitation has yet to begin.
License to Log: Cambodian military facilitates logging on Koh Kong Krao and across the Cardamoms
- Cambodia’s largest island, Koh Kong Krao, off its southwest coast, is covered in largely untouched old-growth forest, but recent satellite imagery shows deforestation is spreading.
- Much of the forest cover loss is in areas tightly controlled by Marine Brigade 2, a navy unit stationed on the island that has historically been accused of facilitating the illicit timber trade.
- Residents of the island said the navy controls almost every aspect of life there, with provincial officials afraid to intervene or investigate the military’s actions on Koh Kong Krao.
- Cambodia’s military has long been a key factor in illegal logging across the country, and reporters found evidence of its continued involvement in logging across the Cardamoms.
New index identifies marine reserves that are protected in theory only
- Marine protected area (MPA) status doesn’t guarantee that conservation efforts are effective, according to new research that looks at the de facto situation of preserved areas around the world.
- A third of the MPAs analyzed appear likely to be protected only on paper, most of them in Latin America, Southeast Asia and Oceania, and the Indian Ocean.
- Researchers created a Paper Park Index (PPI) based on interviews with local stakeholders and their perceptions of fishing levels within MPAs, with the PPI showing the difference between the theoretical goals of the MPAs and the reality on the water.
- The new methodology could help provide more realistic information about the effectiveness of MPAs and support further conservation efforts, the study suggests.
As one Indian Ocean tuna stock faces collapse, nations scramble to save others
- Indian Ocean Tuna Commission members failed to make progress on key measures to protect declining yellowfin tuna (Thunnus albacares), like reducing annual catches and limiting the use of harmful fish aggregating devices (FADs), during their annual meeting.
- Although the commission declared yellowfin tuna overfished in 2015, to date, the intergovernmental regional management body has failed to curb overfishing, bringing the stock closer to collapse.
- Objections from the European Union helped nullify an ambitious plan adopted by the IOTC in February to limit the use of drifting FADs: Objecting parties don’t have to implement the measure, and the EU tuna fleet, which has historically pulled in the largest yellowfin tuna catches in the Indian Ocean, is the biggest deployer of DFADs in the region.
- The commission declared the Indian Ocean bigeye tuna (T. obesus) stock overfished in 2022, and at its meeting in May parties agreed to a 15% reduction from 2021 levels in the permitted annual catch; they also adopted protective measures for seabirds and marine mammals at the meeting, but not for sharks.
Expedition to Pacific ecosystems hopes to learn from their resilience
- An expedition led by National Geographic’s Pristine Seas project will voyage across the Pacific over five years to gather information about marine ecosystems needing protection.
- The Pristine Seas team will collaborate with Pacific island nation governments, communities, Indigenous and local peoples, and local scientists, to gather data and produce films.
- The first stop of the expedition will be the southern Line Islands, part of Kiribati, to understand how its reefs recovered after an El Niño triggered a large-scale bleaching event in 2015 and 2016.
Illegal trawling ravages Tunisian seagrass meadows crucial for fish
- The largest remaining seagrass meadows in the Mediterranean are in Tunisia’s Gulf of Gabès, a hotspot for biodiversity and fishing.
- But illegal bottom trawling and industrial pollution are destroying this unique habitat, a natural nursery to numerous species of fish and other marine fauna.
- Hundreds of trawlers ply their trade overtly with little consequence, and most of the catch makes its way to Europe, skirting laws designed to prevent the entry of illegally caught seafood.
Melting Arctic sea ice is changing bowhead whale migrations, study finds
- Research has found that some bowhead whales in the Bering–Chukchi–Beaufort (BCB) population are no longer migrating to the northwestern Bering Sea in the winter but remain in the Canadian Beaufort Sea.
- These migratory shifts are occurring as sea ice declines in the region due to climate change.
- These changes could mean that bowhead whales become more susceptible to ship strikes, underwater noise, and entanglements, and that Indigenous communities may not be able to rely on bowhead whales for nutrition and cultural subsistence.
- However, this bowhead population is currently not threatened, and these changes may not be fully impacting Indigenous communities yet.
Record year for olive ridley turtles in Bangladesh as conservation work pays off
- Bangladesh has recorded the highest number of olive ridley turtle eggs this nesting season, a conservationist group says.
- The species’ main nesting grounds in Bangladesh are the various small islands off the southeastern district of Cox’s Bazar in the Bay of Bengal.
- Extensive conservation action across the area and the awareness programs carried out among local communities are the key reasons behind the success.
- However, the growth of the tourism industry and infrastructure development continue to pose major threats to the turtles and their nesting grounds.
Studies show oyster reef restoration can work out well — given enough time
- Researchers have found that the restoration of eastern oyster (Crassostrea virginica) reefs in the U.S. have been largely successful, improving oyster production, enhancing habitat, and increasing nitrogen cycling.
- They also found that oyster restoration was more successful in deeper, saltier parts of coastal waters and that it generally took at least eight years for restored reefs to yield long-term benefits.
- But since the 1800s, more than 85% of global reefs have disappeared due to overfishing, disease and other anthropogenic pressures.
- Researchers say their findings can help restoration managers identify which ecosystem services can benefit from their work, how long those benefits might take to accrue, where to construct oyster reefs.
Ecuador to boost protection of Galápagos in biggest debt-for-nature deal ever
- Ecuador has launched a debt-for-nature deal that will wipe out some $1 billion in interest payments in exchange for boosting its protection of the waters around the Galápagos Islands.
- Much of the funding will focus on managing the newly established Hermandad Marine Reserve, the existing Galápagos Marine Reserve, and sustainable fishing and climate resilience efforts.
- The deal would also finance an endowment to generate ongoing funding for marine conservation in the Galápagos Islands.
- This is the world’s largest debt-for-nature deal to date.
Seabird conservation mostly works, comprehensive new data set shows
- Researchers compiled a data set of seabird restoration projects, including those that used translocation and social attraction, from around the world.
- Ornithologist Stephen Kress pioneered translocation and social attraction, but these methods have been used more than 850 times in the last 70 years — mostly to great success.
- Experts say seabirds are one of the most threatened bird groups in the world, and translocation and social attraction can help protect them against threats like invasive species and the impacts of climate change.
Philippines a global hotspot for giant clams — and their illegal trade
- Giant clams, which can grow to weigh more than 200 kilograms (440 pounds), have long been traded for their shells, which are carved into decorative items, as well as for food and the aquarium trade.
- An analysis by the NGO TRAFFIC has found that giant clams are threatened by “both a sizeable legal trade and a parallel illegal trade that is much larger than we know.”
- TRAFFIC identified the Philippines as a hotspot of the illicit trade giant clam shells, accounting for more than 99% of all seizures linked to Southeast Asia despite laws prohibiting their harvest or trade.
- The NGO has called on governments to more closely monitor the trade in giant clams, and to scale up investigations into the networks that facilitate the illegal trade.
The Mexican family who gave up fishing to monitor and rescue sea turtles
- The Kino Bay Turtle Group is made up of a family of former fishers from the state of Sonora in northwestern Mexico.
- The group keeps a close watch on sea turtles in the La Cruz Lagoon, a Ramsar site spanning 6,665 hectares (about 16,470 acres), monitoring the animals, rescuing any that become entangled and educating the public about their importance.
- The group has captured and logged data on more than 800 sea turtles; it is now training a team of Indigenous Comcáac youth to form their own turtle group and begin monitoring and conservation work along a 10-kilometer (6-mile) stretch of coast in Sonora.
Seafloor life abounds around hydrothermal vents hot enough to melt lead
- A team of international scientists on board the RV Falkor (too), a research vessel operated by the Schmidt Ocean Institute, recently discovered active hydrothermal vents on the Mid-Atlantic Ridge.
- This discovery was the first in more than 40 years for a 700-kilometer (423-mile) stretch of the Mid-Atlantic Ridge.
- Researchers say hydrothermal vents help regulate global ocean chemistry, support complex ecosystems, and store vast amounts of marine genetic resources.
- However, there is already interest in mining the sulfide deposits of hydrothermal vent systems for their commercially valuable minerals.
Global Ocean Census aims to find 100,000 marine species in 10 years
- A new initiative called the Ocean Census aims to expand marine biodiversity knowledge by finding 100,000 new marine species within a decade.
- It will send scientists on dozens of expeditions at marine biodiversity hotspots and use advanced technology like high-resolution imagery, DNA sequencing and machine learning, to identify new species.
- Scientists estimate that only about 10% of marine species have been formally described, and about 2 million species have yet to be identified.
Hawaiian communities restore Indigenous conservation, from mountains to sea
- In Hawai’i, an Indigenous stewardship and conservation system known as ahupua’a is slowly being revived on a mountain-to-sea scale in partnership with U.S. government agencies.
- Three Indigenous communities that have successfully reintroduced the ahupua’a system are seeing some conservation successes, such as a 310% increase in the biomass of surgeonfish and an increase in the Bluespine unicornfish (Naso unicornis) population.
- The inclusion of Indigenous Hawaiian conservation, social and spiritual values, like Aloha kekahi i kekahi, have been key to building these conservation areas and forming better working relations with the government.
Colombia: Scientists explore remote seamounts to protect hammerhead sharks
- Since 2000, the Malpelo and Other Marine Ecosystems Foundation has conducted 40 expeditions on and around Malpelo Island, a rocky outpost about 500 kilometers (310 miles) off Colombia’s Pacific coast.
- These expeditions have allowed the foundation to gather information about the area’s population of scalloped hammerhead sharks (Sphyrna lewini) and to discover this critically endangered species’ breeding areas.
- They’ve also influenced the expansion of the Malpelo Fauna and Flora Sanctuary and UNESCO’s declaration of it as a World Heritage Site.
- Malpelo Foundation researchers hope their new expeditions to the area’s seamounts, which form a vital corridor for migratory species, will inform the ongoing fight against illegal fishing that threatens the hammerheads and other marine fauna.
Kelp forests contribute $500 billion to global economy, study shows
- New research suggests that kelp forests generate up to $562 billion each year by boosting fisheries productivity, removing harmful nutrients from seawater, and sequestering carbon dioxide.
- The findings suggest that kelp forests are about three times more valuable than previously believed, contributing the equivalent of Sweden’s entire GDP to the global economy.
- However, experts say that kelp forests are generally overlooked and undervalued, and that many of these ecosystems are under threat worldwide.
At the United Nations, Indigenous Ryukyuans say it’s time for U.S. military to leave Okinawa
- Opponents of the latest U.S. military base in Okinawa, Japan, are calling for urgent intervention by the United Nations to halt the construction of the new base, release military groundwater test data on toxic spills, and close all 32 U.S. military bases.
- The new facility and other military bases have been linked to toxic environmental pollution and construction threatening marine species, along with historical land conflicts between native Okinawans and the mainland Japan and U.S. governments.
- Latest water tests by the Okinawa government reveal PFAS levels up to 42 times higher than Japan’s national water standards with contamination found in drinking and bathing water for roughly 450,000 people.
- Amid rising tensions with China and efforts to counter its influence in the region, Japan and the U.S. cite Okinawa’s proximity to Taiwan and location in the Indo-Pacific as a strategic reason for maintaining bases on the island.
Parasites of the Caribbean: Study pinpoints cause of sea urchin die-off
- Once abundant in the Caribbean, long-spined sea urchins (Diadema antillarum) experienced a mass die-off in the early 1980s, contributing to coral reef deterioration.
- Another die-off occurred in 2022, leading to a further decline in coral reef health in some parts of the Caribbean.
- A new study has identified the culprit: a parasite called a ciliate that took over the sea urchins’ bodies and quickly killed them.
- While researchers are still trying to determine how this disease is transmitted, they say it’s possible that climate change played a role.
Home to rare corals, a Chilean fjord declines in spite of protection
- The Comau Fjord, in the Chilean region of Patagonia, is one of the only sites in the world where the cold-water coral Desmophyllum dianthus lives just 5 meters (16 feet) below the sea surface.
- The easy access to these animals, which elsewhere live at extreme depths, motivated a group of scientists to study them.
- Their research brought new information to light about the corals’ biology and also revealed that the Comau Fjord is at serious risk.
Bringing the ocean’s vast ‘awesomeness’ to light: Q&A with Farah Obaidullah
- “The Ocean and Us,” edited by ocean advocate Farah Obaidullah, provides information from more than 35 female experts on various topics related to the ocean.
- These cover, among others, climate change, overfishing, pollution, ocean management schemes, the human relationship with the ocean, and inclusion and diversity in the ocean space.
- The book helps fulfill the aims of “ocean literacy,” a concept identified by the United Nations as a key driver for achieving the U.N. Decade of Ocean Science for Sustainable Development outcomes.
- “The Ocean and Us” was published by Springer Nature in February 2023.
Top French court orders closure of fisheries amid mass dolphin deaths
- France’s Council of State has ordered the closure of certain fisheries during specific times of the year in a bid to lower the rising number of dolphin deaths.
- A separate European Commission-ordered phaseout of non-selective fishing methods, including bottom trawling, could further help restore marine ecosystems.
- The number of dead dolphins washing ashore on France’s Atlantic coast during winter has worried environmental groups for years, finally prompting the EC to set up new marine life protection targets.
- Complaints to the French government have multiplied over time, demanding that it takes measures to minimize unwanted catches and also sparking fears within the fishing industry, which warns of impacts to food security and jobs.
Uterine implants and underwater ultrasounds aim to demystify shark births
- For years, studying the reproductive biology of sharks has depended on capturing the animals and dissecting them.
- Scientists recently developed the Birth Alert Tag, an egg-shaped satellite transmitter that can be implanted in the uterus of pregnant sharks to document the location and timing of births.
- In another development, scientists took ultrasound readings of whale sharks and sampled their blood to detect if they were pregnant.
- The new methods aim to help researchers determine sharks’ pregnancy status and the location of shark births; one goal is to inform the establishment of corridors to protect the animals, which are among the most vulnerable vertebrates on Earth.
Deep-sea mining meeting closes without resolving whether mining can start in July
- Delegates to the International Seabed Authority (ISA), the U.N.-associated body responsible for regulating deep-sea mining in international waters, recently met to discuss a possible start of this activity in the near future.
- While some member states support the adoption of regulations that would permit mining to commence, other nations have expressed concerns with the process.
- Observers of the meeting say there is no agreement on whether the ISA will permit mining to begin and that delegates didn’t have sufficient time to discuss the issue at the meetings, which ran March 7-31 in in Kingston, Jamaica.
- In July 2021, Nauru triggered a “two-year rule” that could obligate the ISA to allow mining to start within 24 months, no matter what regulations are in place.
‘Manta grid’ provides a ray of hope against industrial bycatch threat
- Most species of manta and devil rays (genus Mobula) are endangered, yet industrial purse seine fishing vessels unintentionally catch about 13,000 each year while hunting tuna, according to one scientific estimate.
- New regulations, handling techniques and equipment aim to reduce this number.
- Fishers are working with scientists to return the rays, which are slippery and can weigh as much as a small car, back into the sea when they are brought on deck in fishing nets.
- At the same time, experts warn that far more mobulids die in gillnets set by small-scale and semi-industrial local fishers in countries throughout the tropics.
As oceans warm, temperate reef species edge closer to extinction, study shows
- New research found that most Australian shallow reef species, including fish, corals, seaweeds and invertebrates, experienced population declines over a decade, mainly in response to warming events driven by human-induced climate change.
- While scientists recorded species decline across Australian waters, some of the most pronounced changes occurred on the temperate reefs of southern Australia, a region that has received less conservation attention than tropical reefs.
- The authors say temperate reefs could be in greater danger of extinction than tropical species, leading to calls for increased conservation efforts for these threatened ecosystems.
Can we control marine invaders by eating them?
- The Mediterranean Sea is home to more than 750 exotic species. Some have adverse ecological effects, like lionfish and blue crabs, but are also edible and even tasty.
- Observers often argue that eating invasive marine species is the best way to deal with them, but some scientists warn that this doesn’t always offer a straightforward solution.
- Setting up targeted fisheries to control marine invaders involves balancing many considerations: fishers’ interests, markets, government policy and conservation.
- Even so, harvesting and serving marine invasive species has immense power to raise awareness about them.
Fishy business of squid vessels needs stronger regulation, study says
- Experts are drawing attention to the unregulated nature of squid fishing, which they say could lead to the overexploitation of species, allow illegal fishing activity to flourish, and contribute to inequity.
- New research suggests that squid fishing increased by 68% across the global oceans between 2017 and 2020, and that 86% took place in unregulated parts of the ocean.
- China’s distant-water fishing fleet accounts for 92% of this tracked squid fishing activity.
- Experts say that unregulated squid fishing needs to be addressed with better management, monitoring and transparency.
‘Plasticosis’: the new disease killing seabirds and likely many other species
- Scientists have identified a new fibrotic disease called “plasticosis” in flesh-footed shearwaters, a species that inadvertently consumes plastic.
- They found that plasticosis was even present in shearwaters with only a small quantity of plastic in their stomachs.
- While this plastic-related disease has thus far only been identified in flesh-footed shearwaters, experts say that nearly every organism — including humans — is being impacted by plastic in some way.
As U.N. members clinch historic high seas biodiversity treaty, what’s in it?
- On March 4, U.N. member states reached a landmark agreement on a legally binding treaty aimed at protecting the international waters of Earth’s oceans.
- The deal, more than 15 years in the making, was finalized after talks overran their two-week schedule into a final, grueling 36-hour negotiation marathon.
- Delegates reached consensus on multiple thorny matters, including a framework for establishing and maintaining a network of marine protected areas on the high seas and mechanisms to share benefits from high seas resources fairly among nations.
- For the new high seas treaty to be implemented, delegates must officially adopt the treaty text at an unscheduled next meeting, and then a minimum of 60 states must ratify it, a process that could take months or years.
Blended finance can supercharge conservation (commentary)
- Bringing together donors, nations, UN agencies, foundations, NGOs, and private investors, ‘blended finance’ can align private investment with public monies to fund conservation.
- A new commentary by the founding chairman of the world’s largest such mechanism focused on ocean conservation — the Global Fund for Coral Reefs — argues that it can serve as a model for others working to reverse biodiversity loss.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
China-funded bridge threatens Paradise Reef in southern Philippines
- Samal Island, a popular tourist destination near Davao City in the southern Philippines, is fringed by a 300-meter (980-foot) coral system known as Paradise Reef, which hosts more than 100 coral species.
- A plan to build a bridge linking Davao to Samal threatens to destroy the reef, scientists and conservationists warn.
- Campaigners in the area are calling on the Philippine government to reroute the bridge to minimize damage to the ecosystem.
Indigenous Comcaac serve up an oceanic grain to preserve seagrass meadows
- The Indigenous Comcaac community of northwestern Mexico is working to preserve eelgrass and promote the renaissance of the grain they obtain from it.
- Known as xnois, this grain from the Zostera marina seagrass was once a vital ingredient in Comcaac food, and was sustainably harvested without harming seagrass meadows.
- Current generations of Comcaac hope to revive the ancient traditions while preserving the seagrass meadows off the coast of their territory.
- Through a recent cultural festival, they showcase the versatility of xnois in both traditional and modern cuisine, from tortillas to energy bars.
Fishing industry transparency is key for a thriving ocean (commentary)
- As fish populations decline in many regions, unscrupulous fishing fleet operators have turned to illegal fishing, human trafficking, slavery and other abuses to cut costs.
- This is facilitated by the complex, opaque nature of global fisheries, but there is one essential step every government can and must take to end this and bring fisheries out of the shadows: introducing comprehensive transparency.
- “The fact that illegal fishing, human rights abuses and ecological collapse in the ocean are so closely interlinked means that systematic, rigorous transparency can help to resolve them all,” a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Reef ruckus: Fish fights erupt after mass coral bleaching, study finds
- An international team of researchers studied the behavioral changes among butterflyfish on a series of reefs in the Indo-Pacific before and after the 2016 global mass coral bleaching event.
- They found that following the bleaching event, fish behaved more aggressively toward one another in their newly degraded reef home.
- The energetic toll of encounters involving fighting and chasing one another could have implications for the long-term survival of reef fish species, the study authors conclude.
- Given rates of ocean warming and predictions for more frequent and intense coral bleaching over the longer term, it’s unclear whether reef fish have the capacity to adapt their behavior to their rapidly changing environments.
‘Locals want their resources to last’: Q&A with marine ecologist Vilma Machava-António
- Ocean Revolution Mozambique (ORM), a recipient of the UNDP’s Equator Prize for 2022, promotes marine conservation in the East African nation by supporting Mozambican researchers in their quest for knowledge.
- “You cannot talk about ecosystem conservation without talking about people,” says Vilma Machava-António, a researcher who benefited from an ORM scholarship.
- The marine ecologist spoke to Mongabay about what attracted her to mangroves, the role these unique coastal systems play in climate adaptation, and what explains the success of some community-led efforts to preserve them.
- Mangroves stash carbon efficiently and are critical to adapting to climate impacts, especially in Mozambique, which is hit by cyclones with distressing frequency.
Machine learning makes long-term, expansive reef monitoring possible
- Conservationists can now monitor climate impacts to expansive marine ecosystems over extended periods of time, a task that used to be impossible, using a tool developed by scientists in the U.S.
- The machine learning tool, called Delta Maps, provides a new way to assess which reefs might be best suited for survival, and which play a key role in delivering larvae to others, and therefore should be targeted for preservation efforts, according to the scientists.
- The scientists used the tool to examine the impacts of climate change on connectivity and biodiversity in the Pacific Ocean’s Coral Triangle, the planet’s most diverse and biologically complex marine ecosystem.
- The authors also noted that the Coral Triangle had more opportunities for rebuilding biodiversity, thanks to the region’s dynamic climate component, than anywhere else on the planet.
‘They’re everywhere out there’: Three new nautilus species described
- Researchers have described three new species of nautilus found in the Coral Sea and the South Pacific.
- The three species can be differentiated due to genetic structure, shell size and coloration, and geographic location.
- Scientists generally know very little about nautiluses but are working to fill in the data gaps to understand how to protect them.
- Nautiluses are highly threatened by the shell trade, as well as pollution and the impacts of climate change.
End of the tuna FAD? Indonesia hopes so, but EU isn’t giving up just yet
- Indonesia has welcomed measures to cut back on the use of fish-aggregating devices, which critics blame for Indian Ocean tuna being caught at unsustainable rates.
- A senior Indonesian fisheries official says all countries on the Indian Ocean coast have a shared interest in tackling the overuse of FADs and in improving the conservation and management of the region’s tuna populations.
- In 2022, the Indian Ocean’s bigeye tuna population was declared overfished, while repeated violation of catch limits for skipjack tuna was reported.
- The European Union, whose fleet accounts for a third of the Indian Ocean tuna catch, has reportedly said it will object to the new resolution; in that event, its vessels will simply continue deploying FADs as usual, since the new measure isn’t enforceable.
Potential impact on whales overlooked as deep-sea mining looks set to start, experts say
- Scientists say future deep-sea mining activities could impact cetaceans through noise pollution, which could interfere with their communication processes.
- According to an opinion piece, a team of experts say assessments of deep-sea mining impact have focused on species associated with the seabed rather than transitory megafauna that inhabit the proposed mining areas, and that urgent research is needed to understand the potential impact on cetaceans.
- However, a mining company says it is evaluating the potential impact of its proposed operations on cetaceans through the gathering of acoustic data during its recent mining test in the CCZ, which it will combine with three years of environmental baseline data.
- Deep-sea mining in international waters may begin later this year after the Pacific island nation of Nauru, which sponsors a subsidiary of a Canadian mining firm, requested accelerated approval of its mining operation.
Costa Rica announces ban on fishing of hammerhead sharks
- Costa Rica announced an all-out ban on the fishing of hammerhead sharks, specifically the smooth hammerhead (Sphyrna zygaena), scalloped hammerhead (Sphyrna lewini) and great hammerhead (Sphyrna mokarran).
- Despite being critically endangered, hammerhead sharks have been bought and sold in Costa Rica for years, with demand being driven by shark fin soup.
- Although some conservation efforts have been made in the past, the government has been heavily criticized up to now for its relaxed approach to dealing with the overfishing of hammerheads.
Critics allege EU’s ‘toxic collusion’ with fishing lobbies is damaging Indian Ocean tuna
- Members of the Indian Ocean Tuna Commission (IOTC) agreed to reduce the use of drifting fish-aggregating devices (FADs) and to impose three-month closures on the devices, despite opposition from the European Union.
- The EU dominates Indian Ocean tuna fisheries; its fleet of industrial fishing vessels has long reeled in the lion’s share of tuna, including yellowfin, a stock that is now perilously close to collapse.
- Through their sheer numbers and influence in EU delegations, industrial fishing lobbyists have stymied efforts to impose appropriate catch quotas and limit the use of destructive fishing gear like FADs used extensively by EU vessels, an investigation by the French NGO BLOOM Association found.
- In a statement, the European Commission denied the NGO’s allegations that lobbyists shape its positions at IOTC talks, noting that the pandemic led to increased participation from stakeholders and that these stakeholders were observers and not authorized to negotiate on the commission’s behalf.
Good fisheries management, if enforced, can help sharks and rays recover
- Effective fisheries management, strong regulations, enforcement, and monitoring can help conserve sharks and rays, according to new research.
- Researchers found that some shark populations in the northwest Atlantic recovered after the U.S. implemented a management plan in 1993, despite ongoing fishing, while populations in areas without sufficient management declined.
- A previous study found that overfishing threatens one-third of sharks, rays and chimeras with extinction, making them the second-most endangered vertebrate group, after amphibians.
An El Niño is forecast for 2023. How much coral will bleach this time?
- Forecasts suggest that an El Niño climate pattern could begin later this year, raising sea temperatures at a time when global temperatures are already higher than ever due to human-driven climate change.
- If an El Niño develops and it becomes a moderate to severe event, it could raise global temperatures by more than 1.5°C (2.7°F) above pre-industrial levels, the threshold set by the Paris Agreement.
- An El Niño would generate many impacts on both terrestrial and marine ecosystems, including the potential for droughts, fires, increased precipitation, coral bleaching, invasions of predatory marine species like crown-of-thorns starfish, disruptions to marine food chains, and kelp forest die-offs.
Thai government turns its sights on illegal coral trade
- For years, Thailand has focused on curtailing its illegal trade in terrestrial wildlife.
- Recently, the country has begun trying to do the same for marine coral species, primarily those caught up in the ornamental aquarium trade.
- New laws, higher penalties for breaking them, beefed-up enforcement and a national mandate to curtail illegal coral trade are all part of Thailand’s efforts to end the trade in its corals.
- While authorities have made several arrests, they have yet to bust any high-profile coral traders.
Mongabay Explains: What’s the difference between artisanal and industrial fishing?
- A new episode of “Mongabay Explains” examines the difference between artisanal and industrial fishing.
- Broadly speaking, artisanal fishing is a form of traditional fishing that uses relatively small, low-powered boats to make short trips close to shore and catch relatively small quantities of fish, whereas industrial fishing uses large vessels that make longer trips farther out to sea and catch larger volumes of fish.
- There are plenty of other differences between the two fishing sectors, too, including their relative impact on the marine environment.
- In this video, Mongabay explores the differences between the two forms of fishing, including some ways people are trying to make each sector more sustainable.
The dark side of light: Coastal urban lighting threatens marine life, study shows
- A new study finds that artificial lights in coastal megacities have come to outshine the moon for most of the year, putting marine species at risk.
- The researchers say that light pollution impacts on marine ecosystems are difficult to assess compared to other pollutants, as levels of light underwater are not only hard to detect with current instruments, but the spectrum and magnitude can change with tides and water clarity.
- Experts note that artificial light pollution needs to be addressed through mitigation plans aimed at cutting the use, duration and intensity of urban lighting, especially considering the popularity of LEDs, whose blue light penetrates the sea deeper than orange lights.
Indigenous Kawésqar take on salmon farms in Chile’s southernmost fjords
- Sixty-seven salmon farms exist within Kawésqar National Reserve in southern Chile, an area that formed part of the Kawésqar Indigenous people’s ancestral lands, and another 66 concessions are under consideration there.
- The salmon industry claims the farms only occupy 0.06% of the reserve, which covers a marine area of 2.6 million hectares (6.4 million acres), and have a legitimate presence in the area.
- But Kawésqar communities accuse the farms of taking up the fjords where their sacred areas and fishing grounds are, of violating their rights on their own territory, and of compromising the ecosystem of the entire reserve through severe pollution.
- Kawésqar communities, with the support of various NGOs, are pursuing numerous legal avenues aimed at excluding salmon farms from the reserve.
U.S. refuses calls for immediate protection of North Atlantic right whales
- The U.S. government has rejected requests to implement emergency measures to protect critically endangered North Atlantic right whales from vessel collisions during the species’ calving season, which takes place between November and April each year.
- Some protections for right whales are already in place, but experts say urgent modifications are needed to protect pregnant females, lactating mothers and calves.
- There are only about 340 individual North Atlantic right whales left in the world, and birth rates are low.
- The National Marine Fisheries Service has proposed similar protections for right whales, including the enforcement of speed limits across more extensive areas of the ocean and for the rules to apply to more vessels — but charity workers are cautious about the outcome of this proposal.
As sea lice feast away on dwindling salmon, First Nations decide the fate of salmon farms
- Increased sea lice infestations, scientists say are caused by salmon farms, threaten the already-vulnerable wild Pacific salmon populations in western Canada, worrying conservationists and First Nations.
- Three First Nations in the region are now deciding on the future of open net pen Atlantic salmon farms dotting the channels and waterways in and around their territories. They hope their decisions will pave the way to protect wild salmon, a culturally important species.
- So far, ten farms have been closed and the future of seven farms are to be decided this year, in 2023.
- The impact of the closure of the farms on local sea lice and wild salmon populations is still unclear, say scientists, and more time to monitor the data is needed.
Venezuela’s oil spill crisis reached new heights in 2022: report
- There were 86 oil spills and gas leaks in Venezuela last year, according to a report published by the Observatory of Political Ecology of Venezuela.
- The states of Zulia and Falcón had the most spills, with 31 and 29, respectfully. In both areas, the spills threatened marine ecosystems in the Caribbean and Lake Maracaibo.
- The spills are a result of aging infrastructure and a lack of regulations needed to maintain the country’s massive oil industry, the report said.
Invasive rats topple ecological domino that affects reef fish behavior
- A recent study reveals that the presence of invasive rats on islands can lead to behavioral changes in fish living on coral reefs offshore. A team of scientists found that damselfish have larger territories that they defend less aggressively on reefs near rat-infested islands.
- Rats and other rodents often tag along on ships. For hundreds of years, they’ve colonized islands around the world, where they feast on seabird chicks and eggs, decimating local populations.
- Seabirds deposit nutrient-rich guano on islands, some of which flows out to reefs and fertilizes the growth of algae.
- Smaller seabird numbers on rat-infested islands mean that fewer nutrients end up on reefs, and the algae there has lower nutritional value than off rat-free, seabird-rich islands. The study’s authors concluded that damselfish were less aggressive near islands with rats because it wasn’t worth the energy to defend a less valuable resource.
More than half of reef sharks and rays threatened with extinction, study shows
- More than half of known species of coral reef sharks and rays are already threatened with extinction, mostly because of overfishing, according to new research.
- The researchers reported that population trends were declining for 94 coral reef shark and ray species; of the two groups, rays were more threatened than sharks.
- Reef sharks and rays are typically caught for human consumption, and to a lesser extent for use in apparel or accessories, in aquarium displays, as food for domestic animals, and in traditional medicine.
- The study calls for urgent urgent measures to improve regional fisheries and marine protected areas management.
More marine protected areas planned for Indonesia’s Maluku after 2022 spree
- The Maluku Islands in Indonesia will protect more swaths of their seas this year, following from the designation of five marine protected areas in 2022 alone.
- The new protected areas will cover the waters around the western island of Buru, where fishing activity will be limited to traditional fishers using sustainable gear.
- Indonesia currently has 284,000 square kilometers (110,000 square miles) of marine area under protection, roughly two-thirds of its target of protecting 10% of its waters.
- The Maluku Islands sit within the Pacific Coral Triangle, an area renowned for its richness of corals and reef fish.
Murdered Belize environmentalist helped boost marine conservation through technology
- Jon Ramnarace, who worked on protected area patrol and marine conservation technology, was shot and killed alongside his brother David in Belmopan on December 31.
- The main suspect, police corporal Elmer Nah, was taken into custody in January and charged with two counts of murder and attempted murder, deadly means of harm and dangerous harm.
- Ramnarace dedicated his life to protecting land and marine habitats in Central America, most recently in the Turneffe Atoll off the Belizean coast.
Island conservation should focus on land-sea links for most impact, paper says
- A new perspective piece in PNAS explores the idea that people, wildlife and the environment of islands thrive when conservation efforts focus on restoring both the land and sea together.
- One way to restore land-sea connections on islands is to eradicate invasive species, such as rats, which can harm native island species like seabirds and crabs.
- Research has shown that terrestrial and marine ecosystems reap benefits when invasive species are eliminated from islands.
Sharks received landmark protection to combat fin trade, but the culling must stop (commentary)
- CITES CoP19 marked a historic win for shark conservation and the fight against the global trade in shark fins and meat, but an equally critical issue that must be tackled is shark culling.
- For many decades, popular culture and media, through the choice of words and visual depictions, have portrayed sharks as a threat to humans. Several countries actively kill sharks in mass numbers to control their presence near beaches.
- While shark nets and drumlines can separate the sharks from the humans at beaches, they aren’t fully effective. There are new methods that use technology, like electric shark repellents and magnetic and visual stimuli, work better to prevent human-shark encounters.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Indonesian ‘island auction’ to go ahead despite concerns over permits
- Shares of a private company with the rights to develop tourism facilities within a marine reserve in Indonesia have reappeared for auction later this month despite the government’s plan to annul an agreement with the firm.
- The government plans to revoke developer PT LII’s 2015 memorandum of understanding with local authorities, including the rights to develop the Widi Islands for 35 years with a possible extension of another 20 years.
- The company’s plan has met mounting concerns in Indonesia, with experts saying it would be essentially selling the islands off to foreigners and cutting off local fishing communities from a key source of livelihood.
- The Widi Islands are also part of a marine reserve in the Pacific Coral Triangle, a region that’s home to the highest diversity of corals and reef fishes in the world.
Restoring Hong Kong’s oyster reefs, one abandoned oyster farm at a time
- Conservationists and researchers are teaming up to restore oyster reefs across Hong Kong.
- At one site, they are repurposing concrete posts from an abandoned oyster farm that made use of traditional oyster cultivation methods dating back hundreds of years.
- Hong Kong’s oysters, and its oyster farmers, are threatened by development, warming and acidifying marine waters brought on by climate change, and toxic algae blooms due to pollution.
- By restoring the reefs, conservationists and scientists hope they can improve water quality, stabilize shorelines, and provide habitat for the city’s surprisingly rich marine wildlife.
Top 15 species discoveries from 2022 (Photos)
- A resplendent rainbow fish, a frog that looks like chocolate, a Thai tarantula, an anemone that rides on a back of a hermit crab, and the world’s largest waterlily are among the new species named by science in 2022.
- Scientists estimate that only 10% of all the species on the planet have been described. Even among the most well-known group of animals, mammals, scientists think we have only found 80% of species.
- Unfortunately, many new species of plants, fungi, and animals are assessed as Vulnerable or Critically Endangered with extinction.
- Although a species may be new to science, it may already be well known to locals and have a common name. For instance, Indigenous people often know about species long before they are “discovered” by Western Science.
2022’s top ocean news stories (commentary)
- Marine scientists from the University of California, Santa Barbara, share their list of the top 10 ocean news stories from 2022.
- Hopeful developments this past year include the launch of negotiations on the world’s first legally binding international treaty to curb plastic pollution, a multilateral agreement to ban harmful fisheries subsidies and a massive expansion of global shark protections.
- At the same time, the climate crises in the ocean continued to worsen, with a number of record-breaking marine heat waves and an accelerated thinning of ice sheets that could severely exacerbate sea level rise, underscoring the need for urgent ocean-climate actions.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
Hunting for future-proof marine plants in the acidic waters bathing a volcano
- The naturally acidic seawater near an underwater volcano in Italy mimic pH levels that according to worst-case climate projections will be common by the end of the century and beyond.
- Scientists are studying local seagrass and seaweed responses to the acidic conditions.
- One question is whether they could be used for restoration purposes in other places that may become more acidic in a not-so-distant future.
- Even so, some researchers point out that these carbon-sequestering marine plants face more immediate challenges from pollution, habitat degradation and warming waters that need addressing for restoration to succeed.
Mongabay Explains: What’s all the brouhaha over bottom trawling?
- A new episode of “Mongabay Explains” examines the controversial fishing method known as bottom trawling, in which vessels drag a net across the seafloor to scoop up bottom-dwelling marine life.
- Ever since the 14th century, fishers who use other gear types — later joined by conservationists and scientists — have objected to bottom trawling, saying the gear takes too many fish and destroys seafloor habitat that’s essential to the functioning of marine ecosystems.
- Proponents of bottom trawling, however, argue that the practice provides an important share of our seafood as well as numerous jobs, and cannot be abandoned.
- In this video, Mongabay takes a look at bottom trawling and the reasons it’s so controversial.
Unsustainable fishing to be banned in Irrawaddy dolphin’s Bornean sanctuary
- Indonesia’s fisheries ministry is working with a conservation NGO to draw up plans prohibiting fishing gear considered dangerous to critically endangered Irrawaddy dolphins in the Mahakam River in Borneo.
- The prohibition will apply to a stretch of the Mahakam that was designated a conservation area earlier this year and that’s home to 90% of the estimated 80 Irrawaddy dolphins in the Mahakam.
- Among the practices they’re seeking to ban are fishing with a type of gill net known as rengge, electrofishing, poison fishing, and fixed-net fishing known as sawaran and kombongan.
- Local fishers are said to be supportive of the plan: “They want to continue fisheries but they also want to get rid of unsustainable fishing … because they care about the dolphins as well.”
California’s network of marine protected areas must be strengthened and expanded (commentary)
- During December 2022, California is holding its first 10-year review of its marine protected areas network, to be used to inform the network’s future.
- Previously, Gov. Gavin Newsom laid out a goal to protect 30% of the state’s land, water, and sea space over the decade.
- “As state regulators take account of the progress it has made of protecting marine ecosystems and wildlife, California should expand and strengthen upon its MPA success stories to ensure 30% of its state waters are fully protected by 2030,” a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Strong marine protected areas credited with manta ray surge in Indonesia
- Manta ray populations are thriving in Indonesia’s Raja Ampat archipelago, a new population assessment shows, highlighting the importance of marine protected areas to the species’ conservation.
- The study showed that reef manta ray (Mobula alfredi) populations saw up to 10.7% compound annual increase from 2009-2019 in the region, even as global ray and shark populations undergo a sweeping decline.
- The study authors attribute this to well-planned and -implemented conservation measures by Indonesian authorities, conservation groups and local communities.
- The finding chimes with the discovery earlier this year that manta ray populations are also flourishing in Komodo National Park, another tightly regulated protected area in Indonesia.
Extinct sea cow’s underwater engineering legacy lives on today, study finds
- In a new study, scientists said that the extinct Steller’s sea cow impacted kelp forests in the North Pacific by browsing at the surface, which would have encouraged the growth and strengthening of the algal understory.
- Not only would sea cows have positively impacted kelp forests in the past, but they may have also enhanced their resilience into modern times, according to the authors.
- Globally, kelp forests face many threats, including ocean warming, which can lead to an overabundance of predatory urchins.
- The authors suggest that it might be possible for humans to reproduce the species’ impact on the canopy of kelp forests to enhance kelp forest resilience.
Black Sea dolphin deaths prompt ecocide allegations against Russia
- On Dec. 7, Ukrainian President Volodymyr Zelenskyy accused Russia of ecocide during COP15, the U.N. biodiversity summit in Montreal, following unprecedented reports of dead dolphins and porpoises washing up on Black Sea beaches since Russia invaded Ukraine.
- On Dec. 2, researchers reported the first scientific analysis of changes in cetacean deaths and movement patterns since the war began in February.
- Mounting evidence is slowly painting a clearer picture of the mass mortality of Black Sea cetaceans.
- But estimates of the death toll vary and scientists diverge on whether research has progressed far enough to scientifically conclude the war’s effect.
Island shopping: Cambodian officials buy up the Cardamoms’ coast
- A buying spree by Cambodia’s wealthy and politically connected elites has put the fate of a string of small islands in the balance, affecting the livelihoods of local fishers.
- Resort developments threaten the Koh S’dach archipelago’s seagrass and coral ecosystems, which harbor rare and threatened marine life.
- Local fishers have also found themselves locked out of their traditional fishing grounds by the developers, leading to a loss of earnings.
- This story was supported by the Pulitzer Center’s Rainforest Investigations Network where Gerald Flynn is a fellow.
Tech companies work to make fishing, aquaculture more sustainable
- Several companies around the world are developing technology to make fishing and aquaculture more sustainable.
- These include the use of artificial intelligence to identify non-native species that disrupt marine food webs and the fisheries they support, and lights that attempt to attract only target species to fishing nets in a bid to reduce the capture of non-targeted species.
- With the rapidly increasing global population underscoring the need to source protein more sustainably, experts say it’s urgent to find ways to make fishing less damaging and more productive.
Indonesia’s mangrove revival hindered by conflicting policies
- Indonesia’s president showcased a new conservation area to G20 leaders as an example of the country’s efforts to combat climate change.
- The country aims to add 33 more sites next year and rehabilitate 600,000 hectares of mangroves by 2024.
- Only about one-third of the country’s mangroves are in good condition, and conflicting development policies stand in the way of future conservation efforts, according to the nation’s largest environmental group.
Indonesian authorities nip island auction in marine reserve in the bud
- Indonesian officials have sought to neuter an apparent bid to auction off private tourism enclaves to foreign investors in a marine reserve in the country’s east.
- Shares of Bali-based developer PT Leadership Islands Indonesia (LII) had been up for bidding via Sotheby’s Concierge Auctions in New York from Dec. 8-14, but the deputy environment minister said this had now been annulled.
- LII holds the rights to develop tourism facilities in the Widi Islands, but not to sell off individual islands to foreign investors, which is against Indonesian law.
- The Widi Islands are part of a marine reserve in the Pacific Coral Triangle, and while most of the islands are uninhabited, they hold high social, cultural and livelihood importance for local fishing communities.
‘It was a shark operation’: Q&A with Indonesian crew abused on Chinese shark-finning boat
- Rusnata was one of more than 150 Indonesian deckhands repatriated from the various vessels operated by China’s Dalian Ocean Fishing in 2020.
- Previous reporting by Mongabay revealed widespread and systematic abuses suffered by workers across the DOF fleet, culminating in the deaths of at least seven Indonesian crew members.
- In a series of interviews with Mongabay, Rusnata described his own ordeal in detail, including confirming reports that DOF tuna-fishing vessels were deliberately going after sharks and finning the animals.
- He also describes a lack of care for the Indonesian workers by virtually everyone who knew of their plight, from the Indonesian agents who recruited them to port officials in China.
Illegal bottom trawling widespread inside Mediterranean marine protected areas
- A new “atlas” reveals widespread illegal bottom trawling inside Mediterranean marine protected areas.
- The atlas, an interactive online map, shows thousands of days of apparent bottom-trawling activity in areas where it is banned, in 2020 and 2021.
- Bottom trawlers can damage the seabed, destroy coral and sponge habitats, and catch unintended species at a high rate.
- The findings demonstrate “the lack of enforcement and transparency in the Med, which is the most overfished sea in the world,” an atlas coordinator told Mongabay.
Will shipping noise nudge Africa’s only penguin toward extinction?
- The African penguin (Spheniscus demersus) is expected to go extinct in the wild in just over a decade, largely due to a lack of sardines, their main food.
- A colony in South Africa’s busy Algoa Bay is suffering a population crash that researchers say coincides with the introduction of ship-to-ship refueling services that have made the bay one of the noisiest in the world.
- They say theirs is the first study showing a correlation between underwater noise pollution and a seabird collapse.
- Current studies are investigating whether the ship noise is interfering with the penguins’ foraging behavior and their ability to find fish.
Breeding success raises hopes for future of endangered African penguin
- Two African penguin chicks have hatched at a nature reserve in South Africa where conservationists have been working for years to entice the endangered birds to breed.
- The colony was abandoned more than 10 years ago after a caracal killed a number of penguins.
- The recent hatching comes at a time when survival prospects for Africa’s only resident penguin species look grim, due mainly to declining food stocks.
- But encouraging new colonies at sites close to abundant food sources could help to bring the species back from the brink.
No requiem for sharks just yet as nations push to protect species from trade
- Nations party to CITES, the global convention on the trade in endangered species, are supporting three proposals to list dozens of sharks and rays from three families onto Appendix II of the convention.
- While a CITES Appendix II listing would not prohibit trade outright, it would regulate it by requiring export permits, which would help mitigate overexploitation.
- A recent study found that more than a third of sharks, rays and chimeras are threatened with extinction, making them the second-most threatened vertebrate group, after amphibians.
- The proposals are up for discussion at CITES’s 19th Conference of the Parties, or CoP19, taking place from Nov. 14-25 in Panama.
How Mitsubishi vacuumed up tuna from a rogue Chinese fishing fleet
- Last week, Mongabay revealed a massive illegal shark finning operation across the fleet of a major Chinese tuna fishing firm.
- The company, Dalian Ocean Fishing, mainly serves the Japanese market. Most of its tuna has gone to Japan’s Mitsubishi Corporation and its seafood trading arm, Toyo Reizo.
- While the general outlines of their partnership are well-documented, tracing specific tuna flows from individual fishing boats to Mitsubishi’s supply chain is impeded by the murky nature of the supply chain.
- Experts say this lack of transparency must be solved in order to prevent illegal fishing and labor abuses at sea.
Negotiations to conserve Antarctic Ocean end in stalemate on many issues
- The 41st annual meeting of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), the intergovernmental body charged with conserving marine life in the Southern Ocean and managing fisheries there, ended Nov. 4 with little progress made on several key issues.
- In 2009 CCAMLR committed to creating a network of marine protected areas to preserve Antarctic ecosystems. It established one that year and another in 2016, but since then China and Russia have repeatedly blocked the creation of additional protected areas, as well as other conservation-related measures.
- The commission also failed to reach the consensus required to enact new regulations for the krill and toothfish fisheries, or to protect a vast nesting area for icefish discovered earlier this year.
- CCAMLR members did agree to designate eight new vulnerable marine ecosystems, areas home to slow-growing organisms such as corals, sponges, brittle stars and feather stars that are now permanently protected from bottom fishing.
Small island, big ocean: Niue makes its entire EEZ a marine park
- In April, Niue, a small island nation in the South Pacific Ocean, designated its entire exclusive economic zone — an area about the size of Vietnam — as a multiple-use marine park called Niue Nukutuluea.
- Forty percent of the park is a no-take marine protected area; a smaller slice is managed by local villages. And about 56% of the park is a general-use zone where commercial fishing and other activities, including possibly deep-sea mining, could take place.
- The country has developed an unusual mechanism to fund the park, and is gathering support to confront the perennial challenge of monitoring and compliance in technologically advanced ways.
‘There are solutions to these abuses’: Q&A with Steve Trent on how China can rein in illegal fishing
- Earlier this week, Mongabay published an article uncovering a massive illegal shark finning scheme across the fleet of one of China’s largest tuna companies, Dalian Ocean Fishing.
- China has the world’s biggest fishing fleet, but oversight of the sector is lax, with many countries’ boats routinely found to be engaging in illegal and destructive practices, especially in international waters.
- Mongabay spoke with Steve Trent, the head of the Environmental Justice Foundation, which has also investigated the fishing industry, about DOF’s shark finning scheme and how China can better monitor its vessels.
Exclusive: Shark finning rampant across Chinese tuna firm’s fleet
- Dalian Ocean Fishing used banned gear to deliberately catch and illegally cut the fins off of huge numbers of sharks in international waters, Mongabay has found.
- Just five of the company’s longline boats harvested roughly 5.1 metric tons of dried shark fin in the western Pacific Ocean in 2019. That equates to a larger estimated shark catch than what China reported for the nation’s entire longline fleet in the same time and place.
- The findings are based on dozens of interviews with men who worked throughout the company’s fleet of some 35 longline boats. A previous investigation by Mongabay and its partners uncovered widespread abuse of crew across the same firm’s vessels.
- Campaigners said Dalian Ocean Fishing’s newly uncovered practices were a “disaster” for shark conservation efforts.
Deep dive uncovers previously unknown underwater ecosystem in Maldives
- Scientists recently identified a previously undiscovered marine ecosystem in the waters around the Maldives, known as the “trapping zone,” about 500 meters (about 1,600 feet) below the surface.
- The researchers say the trapping zone refers to a region of subsea vertical cliffs and shelving terraces that “trap” small, migrating mesopelagic organisms, which attract pelagic predators like sharks, tuna and large fish.
- Prior to this mission, very little was known about the Maldivian sea below 30 m (about 100 ft), despite the country’s total area consisting 99% of water.
- The researchers say trapping zones likely exist in the waters around other oceanic islands with similar topography, and that they’re already gathering evidence of such an ecosystem in the waters of the Chagos archipelago, south of the Maldives.
Why fish are disappearing from Amazonian waters
- From the coastline to freshwater streams, people living in Amazonia say industrial fishing, deforestation, hydroelectric dams and climate change have reduced fish populations.
- Industrial fishing is one of the main explanations for the low numbers. Fishermen report that large boats are trawling with nets up to 30 kilometers (18.6 miles) in length that do not allow fish to reach the shore.
- Other challenges local fishers are facing have to do with the effects of climate change on rivers and mangroves, including increased temperature and lower pH and oxygen levels in the water, which make it harder for species to survive.
- Hydroelectric dams are a threat to inland Amazonian fish species because they interrupt migratory flow, leading to genetically compromised populations; this phenomenon has been seen in the Xingu River, which, dammed by the Belo Monte hydroelectric plant, is suffering from falling fish reproduction rates.
To protect the Southern Ocean, leaders must act now (commentary)
- This week in Australia, global leaders have the opportunity to protect Antarctica’s vast and biodiversity rich Southern Ocean at the annual Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) meeting.
- Emperor penguins, orcas, crabeater seals, albatross, and krill are among the species that call this region home, but the latter is a key one that plays a huge role in the health of Antarctica, since it underpins the food web.
- The commercial krill fishery produces fishmeal for pets, people and aquaculture and has become concentrated in recent years, with most of the catch taken from small, nearshore areas where wildlife feed: “We need Southern Ocean MPAs and well-designed fishery measures to effectively conserve fish populations, habitats and wildlife,” a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.
To boost fish catches, try banning fishing, new study shows
- A new study has found that the Papahānaumokuākea Marine National Monument in Hawai‘i, the world’s largest contiguous marine protected area, increased the catch rates of yellowfin and bigeye tunas in nearby fisheries due to a “spillover effect.”
- Between 2016 and 2019, catches of yellowfin tuna increased 54% in waters near the MPA, and catch rates for bigeye tuna rose by 12%.
- Another study found that MPAs not only increase the catches for fisheries, but also yield other benefits, like the enhancement of carbon sequestration and biodiversity.
- However, both studies suggest that the best results come from fully protected MPAs that don’t allow fishing, and that underprotected MPAs yield “little to no social or ecological benefits.”
Plastic impacts a grossly underestimated ‘one-two punch’ for seabirds: Study
- That plastic pollution is harmful to marine life, including seabirds, is well known, but recent research finds that the impacts may be “grossly underestimated” and that plastics can affect multiple organs.
- A new study investigated plastic ingestion by flesh-footed shearwaters and found that — as was determined in past research — initial consumption can harm the stomach. New evidence also showed that impacts are far more expansive, and may cause ongoing health problems distributed throughout body organs.
- Some forms of tissue damage detected by the new research suggest that plastic particles may also act as chemical pollutants, though this requires further study.
- Plastic pollution is a massive growing problem for the world’s oceans and marine life. Earlier this year, researchers announced that the global planetary boundary for novel entities — including plastics — has been surpassed, threatening Earth’s operating systems and life as we know it.
Heat-sensing drone cameras spy threats to sea turtle nests
- Researchers used heat-detecting cameras mounted on drones to monitor sea turtle nesting on a beach in Costa Rica’s Osa Peninsula.
- Using thermal infrared imagery, researchers detected 20% more turtle nesting activity than on-the-ground patrollers did. The drone imagery also revealed 39 nest predators and other animals, as well as three people, assumed to be poachers, that were not detected by patrollers.
- In Costa Rica, turtle eggs are sold locally and illegally for their alleged aphrodisiac properties. Six out of the seven species of sea turtles are threatened globally, and protecting their eggs is one of the easiest ways to ensure they endure into the future.
- The lead author says these methods are still rather expensive and aren’t a replacement for patrollers but could be an extra tool that they can use to get a big improvement on night patrols, especially on nesting beaches that are dangerous and inaccessible.
A ‘super reef’ recovery raises hopes — but also questions about its resilience
- Experts documented the substantial recovery of coral reefs around the southern Line Islands in the central Pacific after the area was hit by a large-scale coral bleaching event in 2015 and 2016.
- Many factors may have contributed to the reef’s recovery, including the fact that the reef is seemingly untouched by human activity, which helped maintain a healthy and resilient ecosystem.
- But other experts question whether this reef would be able to recover after more frequent bleaching events, which are predicted to increase as global temperatures continue to rise.
Greenland shark, world’s longest-living vertebrate, gets long-awaited protection
- In September, the Northwest Atlantic Fisheries Organization (NAFO), an intergovernmental organization that manages fisheries, prohibited the retention of Greenland sharks in international waters.
- This ban would apply to the intentional catching of Greenland sharks as well as the retention of the species as bycatch.
- However, bycatch exceptions could be made if countries prohibit the discarding of fish.
- Greenland sharks are known to be the longest-living vertebrate in the world, reaching ages of between 270 and 500 years.
Podcast: ‘Destructive & flawed’: Claire Nouvian on bottom trawling’s many impacts
- Goldman Environmental Prize winner Claire Nouvian joins the Mongabay Newscast to discuss the many impacts of bottom trawling and a historic policy shift by the European Commission to rein in the practice.
- This kind of fishing is known for damaging deep-water coral reef ecosystems and marine biodiversity, and for having a heavy carbon footprint.
- Nouvian discusses the successful activism of her organization that won an EU-wide ban on bottom trawling below 800 meters (875 yards) after seven years of grassroots organizing. She also discusses what individuals can do if they want to support more sustainable fishing practices.
‘One more thing’ about plastics: They could be acidifying the ocean, study says
- New research suggests that plastic could contribute to ocean acidification, especially in highly polluted coastal areas, through the release of organic chemical compounds and carbon dioxide, both of which can lower the pH of seawater.
- The study found that sunlight enabled this process and that older, degraded plastics released a higher amount of dissolved organic carbon and did more to lower the pH of seawater.
- However, the findings of this study were conducted in a laboratory, so it’s unclear whether experiments conducted in estuaries or the open ocean would yield similar results, experts said.
U.S. charts course for adopting ropeless fishing to reduce whale deaths
- The National Oceanic and Atmospheric Administration (NOAA) has published a report laying out a strategy to allow the use of “ropeless” or “on-demand” fishing gear off the U.S. East Coast with the goal of reducing entanglements of the critically endangered North Atlantic right whale.
- The gear uses acoustic signals to locate and retrieve gear, reducing the amount of time that vertical lines are present in the water column, where they can ensnare right whales and other types of marine life.
- Right whale numbers in the North Atlantic have declined precipitously in the past decade, as collisions with ships and entanglements have killed individuals and hampered the species’ ability to reproduce.
- NOAA’s Ropeless Roadmap estimates that on-demand fishing gear can substantially diminish the risk to right whales, while allowing economically and culturally important fisheries of the northeastern U.S. to continue.
Sri Lankan study identifies new jellyfish, sparking interest in the species
- A jellyfish study initiated by the Wayamba University of Sri Lanka has shed light on this ignored marine species that’s rarely been studied since 1905 and contributed to increasing the possible number of jellyfish species found in Sri Lanka to about 150.
- Researchers also described a new box jellyfish species named Carybdea wayamba, also the first species of this genus described from this part of the Indian Ocean, and are working on a number of other species that are potentially new.
- Jellyfish fishery has potential in Sri Lanka and the department of fisheries has made various attempts to popularize it before, but conservationists highlight the need for proper population and distribution study before introducing the new form of fishery.
- Even though the species found in Sri Lankan waters are not lethal, the jellyfish is a medically important species as Sri Lanka records several hospitalizations each year due to stings.
Europe moves to protect deep-sea sites in Atlantic from bottom fishing
- The European Commission recently announced that it will protect 16,000 square kilometers (6,200 square miles) of the deep sea — known as “vulnerable marine ecosystems” — in EU waters in the northeast Atlantic Ocean by prohibiting bottom fishing in these areas.
- This move is a key component to the Deep-Sea Access Regulation, a plan adopted by the EC in 2016 to protect deep-sea environments in EU waters. However, the regulation stipulated that vulnerable marine ecosystems should be protected by 2018, so its implementation comes four years late.
- The fishing sector has warned that this move will threaten the future of bottom fishing and impact more than 10,000 fishers.
- Conservation experts have welcomed this announcement, despite its lateness, saying that such a move is essential in protecting fragile and ecologically important deep-sea environments.
Future reefs: A manifesto to save the world’s coral gardens (commentary)
- Coral reefs cover less than 3% of the ocean but contain a quarter of all marine life. Next to tropical rainforests, they are the most biodiverse ecosystems on Earth.
- Fifty of the world’s leading scientists recently laid out a roadmap to save the world’s coral reefs.
- With urgent climate action and by following this roadmap, these oases of beauty may retain critical marine biodiversity and provide a lifeline for coastal communities into the next century and beyond, a new op-ed argues.
- This post is a commentary. The views expressed are those of the authors, not necessarily of Mongabay.
Acid test: Are the world’s oceans becoming too ‘acidic’ to support life?
- The world’s oceans absorb about a quarter of humanity’s carbon dioxide emissions, buffering us against higher atmospheric CO2 levels and greater climate change. But that absorption has led to a lowering of seawater pH and the acidification of the oceans.
- The process of ocean acidification is recognized as a leading threat to ocean life due to its impairment of calcifying organisms and other marine species. The full impacts of acidification are unknown, but at some point reduced pH could be disastrous biologically.
- Researchers have designated ocean acidification as one of nine planetary boundaries whose limits, if transgressed, could threaten civilization and life as we know it. But there is debate as to whether there is a global boundary for this process, since acidification impacts some regions and species more or less than others, making it hard to quantify.
- Scientists agree that the primary solution to ocean acidification is the lowering of carbon emissions, though some researchers are investigating other solutions, such as depositing alkaline rock minerals into oceans to lower the pH of seawater.
‘Mind-blowing’ marine heat waves put Mediterranean ecosystems at grave risk
- A recent study reveals the widespread effects of climate change-driven marine heat waves on the ecological communities of the Mediterranean Sea.
- Rises in sea surface temperatures as high as 5° Celsius (9° Fahrenheit) above normal have caused die-offs in 50 different taxonomic groups of animals from around the Mediterranean Basin.
- These far-reaching impacts of the warming sea could devastate the fisheries on which many of the Mediterranean region’s 400 million people rely.
- Researchers advocate bolstering and expanding marine protected areas. Although they can’t hold back the warmer waters that have proven deadly to the sea’s rich biodiversity, these sanctuaries can help ensure that these species don’t have to cope simultaneously with other pressures, such as overfishing or pollution.
In Indonesia’s West Sumbawa, tide turns on taste for turtle eggs
- Consumption of turtle eggs is widespread in Indonesia’s West Sumbawa district, where they’re served to guests of honor such as local government officials.
- All seven species of sea turtle are listed as threatened worldwide, with egg poaching a key cause of endangerment.
- West Sumbawa officials have pledged to stamp out poaching and consumption of sea turtle eggs.
Greenland’s sustainable halibut fishery may threaten newfound corals, sponges
- Industrial trawling for halibut in the Davis Strait off western Greenland is currently done in a certified sustainable manner, but new studies suggest it may be doing long-term harm.
- The studies describe assemblages of unique marine life on the seafloor both inside and near the halibut fishing zones that could potentially be considered “vulnerable marine ecosystems.”
- Scientists have called for protection of these potential VMEs, but acknowledge that ending bottom trawling altogether isn’t a viable option when fishing accounts for 93% of Greenland’s exports.
- Fishing industry stakeholders say they’re confident that existing rules designed to help the halibut fishery meet sustainability requirements will be sufficient to spare these potential VMEs, and point to a new management plan for the entire Greenlandic seabed that is in development as a way to strengthen protections.
Seaweed an increasingly fragile lifeline for Philippine farmers
- Commercial seaweed farming began in the Philippines in the 1970s and has grown to be one of the country’s most significant aquaculture enterprises, supporting more than 200,000 coastal families.
- In communities in Palawan, seaweed farming also plays a role in protecting marine life, with small farmers serving as extra eyes and ears in the fight against illegal fishing.
- As climate change intensifies, warmer waters are making seaweed farms more susceptible to pests and diseases, threatening the survival of the industry and the families that depend on it.
Maldives shark-fishing ban tested by ebbing support from small-scale fishers
- A 2010 blanket ban on shark fishing in the Maldives doesn’t enjoy support from artisanal reef fishers, a new study suggests.
- Many fishers blamed sharks for stealing their catches, eating into their earnings, and damaging their fishing equipment — problems they perceive have worsened since the creation of a shark sanctuary.
- These negative perceptions could result in lower compliance with fishing restrictions and undermine efforts to revive shark populations in Maldivian waters.
- Pole-and-line skipjack tuna fishers reported the greatest support for the shark fishing ban because sharks corral tuna to the ocean surface, making them easier to catch.
Delegates come close, but fail again to clinch high seas protection treaty
- At the close of two weeks of negotiations on Aug. 26 in New York, delegates from around the world had failed to net consensus on a high-stakes, legally binding treaty to conserve biodiversity on the high seas.
- These areas beyond national jurisdictions comprise two-thirds of the global ocean and are a vast, resource-rich global commons. Yet there is no comprehensive, agreed-upon framework governing resource extraction or conservation there.
- Top sticking points included fair access to marine resources for all and how to establish marine protected areas on the high seas.
- The meeting was the fifth of four planned diplomatic sessions that began in 2017 following more than 10 years of discussion. It ended with a commitment to reconvene before the year is over.
Study paints ‘bleak picture’ for nearly all marine life without emissions cuts
- New research published in Nature Climate Change has found that nearly 90% of assessed marine life would be at high or critical risk by 2100 if the world continues upon a high-emissions pathway.
- It found that the risks would be more concentrated in the tropics, and that top predators would be more at risk than species lower down the food chain.
- However, if countries drastically reduce their emissions, the study found that climate risk would decrease for more than 98% of these species.
Scientists develop AI that can listen to the pulse of a reef being restored
- Scientists have developed a machine-learning algorithm that can distinguish healthy coral reefs from less healthy ones by the soundscape in the ecosystem.
- Previous studies had established that the sounds of life in a successfully recovered reef are similar to those from a healthy reef, but parsing all the acoustic data was slow and labor-intensive.
- The new algorithm has been hailed as “an important milestone” for efficiently processing acoustic data to answer the basic question of how to determine the progress of a reef restoration program.
- Researchers say follow-up work is still needed, including to check whether the algorithm, tested in the Pacific Coral Triangle, also works in reefs in other parts of the world.
Climate change and overfishing threaten once ‘endless’ Antarctic krill
- Antarctic krill are one of the most abundant species in the world in terms of biomass, but scientists and conservationists are concerned about the future of the species due to overfishing, climate change impacts and other human activities.
- Krill fishing has increased year over year as demand rises for the tiny crustaceans, which are used as feed additives for global aquaculture and processed for krill oil.
- Experts have called on the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), the group responsible for protecting krill, to update its rules to better protect krill; others are calling for a moratorium on krill fishing.
- Antarctic krill play a critical role in maintaining the health of our planet by storing carbon and providing food for numerous species.
Overlooked and at risk, seagrass is habitat of choice for many small-scale fishers
- Seagrass meadows, rather than coral reefs, are the fishing grounds of choice for many fishing households in four countries in the Indo-Pacific region, a new study shows.
- Fishers in Cambodia, Tanzania, Indonesia and Sri Lanka identified seagrass meadows as being more easily accessible than coral reefs, often without the need for a boat, and less likely to damage equipment such as nets.
- However, seagrasses around the world are disappearing at rates that rival those of coral reefs and tropical rainforests, losing as much as 7% of their area each year.
- The study makes the case for better-informed management of these marine habitats, to ensure their sustainability for the marine life and people who depend on them.
Sea life may downsize with ocean warming — bringing challenging impacts
- A new model predicts that marine microbes could shrink by up to 30% in the future due to climate change, impacting bigger organisms that eat them including fish, potentially disrupting the food chain from the bottom up. Smaller fish would mean impacted fisheries. Smaller microbes could mean less carbon sequestration.
- Warmer oceans hold less oxygen, and the model predicts that sea life will get smaller in response to more limited oxygen. But scientists have long debated why this downsizing occurs, and some say that other factors not considered in the model could impact oceanic microbes in unexpected ways.
- Accurately predicting warming impacts on marine life could improve ocean resource management.
In Japanese waters, a newly described anemone lives on the back of a hermit crab
- A newly described anemone species has been found off the coast of Japan and appears to live exclusively on the shells of one hermit crab species.
- First-of-its-kind video recordings of the hermit crab and anemone duo show the hermit crab moving to a new shell and spending more than 40 hours poking, peeling and dragging the anemone to come along.
- Researchers believe the hermit crab and anemone are in an obligate symbiotic relationship, or that they need each other to survive.
- The anemone eats falling debris and protects the hermit crab from parasites and predators, and in turn, gets to hitch a ride to fresh feeding grounds.
Stingrays can ‘talk’ when they get riled up, new study suggests
- A new paper provides the first evidence that wild stingray species produce short, loud clicking sounds.
- While scientists still need to learn how and why stingrays make these noises, they speculate that the clicking sounds are a distress or defense signal.
- The paper documents three instances of this behavior in mangrove whiprays and cowtail stingrays, two species threatened with extinction.
New DNA test aims to help bust illegal trade in precious red coral
- There’s a brisk illegal trade in precious red corals, from the family Coralliidae, but law enforcement currently has a difficult time telling commonly traded taxa apart.
- Demand for the corals for use in jewelry and decorative objects has depleted certain populations of these ecosystem engineers.
- Scientists recently developed a new DNA test that could help determine whether a coral object belongs to a taxon that’s subject to international trade regulations.
- They express hope that the new method will “contribute to better control of international trade” and inform buyers about the species they purchase.
Study: Climate impacts to disproportionately hurt tropical fishers, farmers
- The majority of 72 coastal communities studied in five countries in the Indo-Pacific region may face significant losses of agricultural and fisheries products — two key food sources — simultaneously under the worst-case climate change projections, a new study shows.
- These potential losses may be coupled with other drivers of change, such as overfishing or soil erosion, which have already caused declining productivity, the study adds.
- But if carbon emissions can be effectively managed to a minimum, the study’s authors say, fewer communities would experience losses in both the agriculture and fisheries sectors, indicating the importance of climate mitigation measures.
- The current global average temperature is 1.1°C (2°F) above pre-industrial times, and climate experts have warned that it could climb to about 3°C (5.4°F) higher by the end of this century if nothing changes.
Young Māori divers hunt invasive crown-of-thorns starfish to save coral reefs
- The island of Rarotonga in the Cook Islands is experiencing an outbreak of crown-of-thorns-starfish (taramea, Acanthaster planci), which could jeopardize the survival of its surrounding coral reef.
- Local environmental organization Kōrero O Te `Ōrau has been tackling the outbreak since 2020 by training young Māori people in scuba diving and running regular expeditions to remove taramea from the reef and bury them inland.
- The work has contained the outbreak on two sides of the island by collecting over 3,700 crown-of-thorns starfish, ultimately mitigating its impact on reef health. However, ongoing efforts are required.
- The project is also upskilling young Cook Islanders in marine management theory and practice.
Colorful new corals bedeck the busy waters off Hong Kong, study shows
- Scientists have found three new species of sun corals off Sung Kong and Waglan islands in the eastern waters of Hong Kong.
- The discovery of these orange, violet and green corals brings the number of known species in the Tubastraea genus from seven to 10.
- Sun coral species don’t build reefs or host symbiotic algae, but instead live in deeper waters and eat by capturing zooplankton from seawater with their tentacles.
- The discovery “reveals how little we know about marine diversity, and how many undescribed species are still awaiting our discovery,” one of the scientists said.
Scientists strive to restore world’s embattled kelp forests
- Kelp forests grow along more than one-quarter of the world’s coastlines, and are among the planet’s most biodiverse ecosystems. But these critical habitats are disappearing due to warming oceans and other human impacts.
- Sudden recent wipeouts of vast kelp forests along the coastlines of Tasmania and California highlighted how little was known about protecting or restoring these vital marine ecosystems.
- Scientists are finding new ways to help restore kelp, but promising small-scale successes need to be ramped up significantly to replace massive kelp losses in some regions.
- Global interest in studying seaweed for food, carbon storage and other uses, may help improve wild kelp restoration methods.
U.N. Ocean Conference ends with promises. Is a sea change coming?
- The second United Nations Oceans Conference took place from June 27 to July 1 in Lisbon, focusing on the protection of life under water, as dictated by U.N. Sustainable Development Goal No. 14.
- The conference was originally meant to have taken place in 2020, but was delayed due to the COVID-19 pandemic.
- While nations, NGOs and other entities made hundreds of conservation commitments, including pledges to expand marine protected areas, end destructive fishing practices, and fund conservation efforts, experts say there is still a lot of work to be done to protect our oceans.
- Coalitions of small-scale fishers and Indigenous peoples also voiced their concerns about being excluded from important conservation dialogues.
A year before deep-sea mining could begin, calls for a moratorium build
- At the U.N. Ocean Conference taking place this week in Lisbon, momentum has been building in support of a moratorium on deep-sea mining, an activity projected to have far-reaching consequences for marine ecosystems, biodiversity, and global fisheries.
- The Pacific island nation of Palau launched an alliance of countries that support a moratorium, which Fiji and Samoa subsequently joined.
- A global network of parliamentarians has also banded together to support a moratorium and to look for a legal way to enforce it.
- As things stand, deep-sea mining could begin a year from now, with the International Seabed Authority, the body tasked with regulating the activity, drawing up the rules that would allow mining to commence.
Experts fear end of vaquitas after green light for export of captive-bred totoaba fish
- After a 40-year prohibition, international wildlife trade regulator CITES has authorized the export of captive-bred totoaba fish from Mexico.
- Conservationists say they fear this decision will stimulate the illegal fishing of wild totoabas and that this will intensify the threats facing the critically endangered vaquita porpoise.
- Only around eight individual vaquitas remain alive; they regularly drown in nets set illegally for totoabas in the Upper Gulf of California, where the two species overlap.
- The swim bladders of totoabas are sold in Asian markets at exorbitant prices because of their value as status symbols and their supposed medicinal properties.
In Costa Rica, unlicensed fishers and regulators unite over a common enemy
- Artisanal fishers on Costa Rica’s southern Caribbean coast have been operating in a legal gray area since 2005, when the government ordered a freeze on fishing licenses pending a study on fishing sustainability.
- Now, however, they’ve come back into favor, thanks to their efforts to tackle the explosive growth of an invasive species: the red lionfish.
- The lionfish has no natural predators in these waters, and its proliferation threatens commercially important species such as snapper, lobster and shrimp.
- Today, fishers’ associations are working with regulators on joint efforts to fight back the lionfish tide and compile fisheries data, in exchange for licenses.
‘The return of land to Indigenous people is key’: Q&A with Shinnecock Kelp Farm’s Tela Troge
- A group of women of the Shinnecock Nation manage the first Indigenous-owned kelp farm on the United States’ East Coast, and are ready to harvest this year’s first batch.
- The people of the Shinnecock Nation have lived on Shinnecock Bay, on the east end of Long Island, New York, since the end of the last Ice Age. But overdevelopment on unceded tribal land is leading to nitrogen pollution, which is killing marine life.
- The Shinnecock Kelp Farm is farming sugar kelp (Saccharina latissima) in hopes that it will absorb some of the water’s excess nitrogen.
- Tela Troge, one of the six women running the Shinnecock Kelp Farm, met with Mongabay to talk about the future of this effort, and how farming kelp could help Shinnecock Nation regain sovereignty over waters they have tended for generations.
Sea restoration projects quilt a ‘mosaic of habitats’ with striking results
- The concept of restoring more than one type of marine habitat at a time — such as oyster reefs, seagrass meadows and salt marshes — is becoming increasingly popular as scientists and conservationists learn about the advantages of this approach.
- Many studies clearly show the mutual benefits that integrated habitats provide to each other, as well as the larger benefits offered to the ecosystem.
- Yet other studies show mixed results, drawing attention to the complex nature of this approach.
- Numerous seascape restoration projects are taking place around the world, including in the coastal bays of Virginia, U.S., the sea off the coast of South Australia, and the estuaries and lochs in the U.K.
Ray care center: Indonesia’s Raja Ampat a key nursery for young reef mantas
- Scientists have published new evidence confirming that Wayag Lagoon in Indonesia’s Raja Ampat archipelago is a globally rare nursery for juvenile reef manta rays (Mobula alfredi).
- Visual observations from 2013 to 2021 show that juvenile reef manta rays are repeatedly encountered in the small, shallow and sheltered lagoon, without the presence of adult individuals; the young rays spend months at a time inside the lagoon, never venturing out.
- The findings have prompted marine authorities in Indonesia to start revising the management of the lagoon to safeguard the manta nursery zone, with regulations being drawn up to limit disturbances to the young rays.
- Both oceanic and reef manta rays are protected species under Indonesian law, which prohibits their catch and the trade of any of their body parts.
‘Tendrils of hope’ for the ocean: Q&A with conservationist Charles Clover
- The latest book by Charles Clover, “Rewilding the Sea,” published by Penguin Random House UK, tells stories of what can happen when governments, scientists, conservationists and fishers work together to protect and restore the ocean, generating hope for the future.
- While the term “rewilding” usually refers to restoration efforts that take place on land, Clover argues that the sea can also be rewilded through the reinstatement of ecosystems as well as by simply allowing nature to repair itself.
- He further argues that rewilding can be achieved through new approaches to fisheries management, the creation of marine protected areas, and the protection of parts of the ocean known to sequester carbon.
- While the book acknowledges that the oceans are facing a tremendous number of pressures due to human activities, Clover calls the destruction of ocean life the “world’s largest solvable problem.”
Noise pollution spooks whales the way predators would, study finds
- Whales appear to react to human-made noise in the ocean, such as naval sonar, in a similar way to which they respond to the sounds of their predators like killer whales, according to recent research.
- The authors of the study played the sounds of sonar and killer whales when whales from four species were present.
- The whales responded by breaking off their feeding forays, leading scientists to conclude that noise pollution in the ocean could leave them weaker and more vulnerable to predation.
- The researchers also suggest that marine mammals in the Arctic may be especially at risk as climate change alters their environment in ways that may make them more vulnerable.
First Nation reclaims territory by declaring Indigenous protected area in Canada
- The Mamalilikulla First Nation has declared part of its traditional territory on British Columbia’s Central Coast that it lost to colonialism to be an Indigenous protected and conserved area (IPCA).
- The Nation views the declaration to be a step toward sovereignty and is seeking “co-governance” with Canadian federal and provincial governments; the latter typically talk of “co-management,” which would retain settler authority.
- Canada and British Columbia have their own policies for protecting nature, but some conservationists and Indigenous groups argue that Indigenous peoples are better at sustainable management. The area of the IPCA has been degraded by logging and fishing.
- The Mamalilikulla have a plan to restore the land and sea and are calling for a five-year moratorium on logging and immediate protection of a marine area called Hoeya Sill, home to rare corals and sponges.
‘Why sharks matter’: Q&A with author and shark biologist David Shiffman
- In a new book, conservation biologist David Shiffman explores the importance of sharks to the world’s marine ecosystems.
- An enthusiastic “deep dive” into the latest research, “Why Sharks Matter” also addresses the threats sharks face and what scientists, NGOs and the public can do to support shark conservation.
- Mongabay caught up with Shiffman just before the May 24 release of the book.
How will climate change impact cold-water corals? Mostly through food loss, study says
- A new study warns that cold-water corals, also known as deep-water corals, could be most impacted by a decrease in food supply as climate change shifts the dynamics of the planet’s oceans.
- The authors came to this conclusion by examining how cold-water corals survived the last major period of global warming that occurred at the end of the last glacial period and the start of the current interglacial period, which is somewhat analogous to how the Earth is projected to warm by the end of this century.
- However, experts point out that cold-water corals today are subjected to a number of additional stressors, including ocean acidification, destructive fishing practices, and pollution, and that the climate is changing far more rapidly than it did in the past.
- Cold-water corals are considered to be equally important — or perhaps even more important — than tropical corals, which makes understanding their chances of survival of the utmost importance, researchers say.
For 20 years, Comoros had only 1 national park. It’s now creating 5 more
- Comoros, an archipelagic nation in the western Indian Ocean, is dramatically expanding its network of protected areas (PAs) from one to six, including three new marine protected areas (MPAs).
- The idea is to replicate the co-management approach at Mohéli National Park, the country’s first and currently only national park, created in 2001 as an MPA.
- However, Comoros’s experience with Mohéli provided no clear blueprint for supporting communities whose traditional rights are curtailed because of the protected areas, or for sustainably funding for such a vast PA network.
For reef mantas, Indonesia’s Komodo National Park is a ray of hope
- A new study has found that Komodo National Park in Indonesia has an aggregation of 1,085 reef manta rays, currently classified as a vulnerable species.
- Experts say that locations such as Komodo will play an important role in safeguarding the species from extinction.
- Manta rays are under pressure from fishing activity, including targeted fishing and bycatch.
- However, experts say the species is also impacted by tourism and the changing dynamics of the ocean.
200 mysterious sea turtle deaths: Q&A with Kenyan fisherman and turtle rescuer Daniel Katana
- Near the town of Marereni, smack in the middle of Kenya’s Indian Ocean coastline, a group of local volunteers has been protecting sea turtles and planting mangroves for nearly two decades.
- In the past two years, however, the Marereni Biodiversity Conservancy has documented alarming spikes in sea turtle deaths and in turtles with fibropapilloma tumors, as well as a decline in sea turtle nests.
- While the causes have yet to be determined, conservancy members suspect the sea turtles’ problems may be associated with pollution from nearby salt mines.
- Mongabay interviewed the group’s CEO, Daniel Masha Katana, about how it is responding to the current threats to sea turtles.
Biologist fighting plastic pollution to save sea turtles wins ‘Green Oscar’
- Estrela Matilde, a conservation biologist and executive director of the NGO Fundação Príncipe, has won a Whitley Award, for her work to save sea turtles in the tiny African nation of São Tomé and Príncipe.
- Fundação Príncipe has been working since 2015 to conserve the island of Príncipe’s biodiversity by working with the local community to develop alternative livelihoods that reduce pressure on resources and protect wildlife.
- Matilde’s attention has turned to documenting and tackling plastic pollution after a conservation initiative that put cameras on sea turtles revealed just how much plastic Príncipe’s marine life encounters.
- She plans to use the award money to document via GPS the tides of plastic pollution reaching Príncipe, and to scale up a livelihood project in which local women make trinkets out of the plastic that washes up on the island’s beaches.
What’s popping? Humpbacks off South Africa, new acoustic study finds
- Researchers recently recorded humpback whales making popping sounds like a gunshot at the Vema Seamount off the coast of South Africa.
- It’s not currently known why humpbacks make these sounds, but researchers suspect it has to do with mating or feeding.
- The Vema Seamount is an important feeding ground for humpbacks and other species, leading experts to call for the region to be protected.
Fisher groups are the marine militia in Indonesia’s war on illegal fishing
- Indonesia has a vast maritime area, but not enough personnel to patrol and monitor for illegal and destructive fishing.
- To address this gap, in recent years the government has incentivized fishers and other coastal communities to form monitoring groups that are responsible for patrolling their local waters.
- In the Raja Ampat archipelago in the country’s east, Mongabay meets some of the people who have volunteered for the task of protecting their waters from blast fishing and cyanide fishing, among other violations.
For more fish and healthier coral in Bali, focus on communities and connectivity: Study
- A new review highlights improvements that can be made to the conservation of Bali’s coral reefs, which face multiple local stressors alongside warming waters and coral bleaching.
- While there are more coral-focused conservation initiatives in Bali than elsewhere in Indonesia, not all of them are successful, the authors say, leaving much room for improvement, particularly regarding design and management of protected areas.
- The authors recommend a more coordinated approach to marine protected area management to create networks that effectively safeguard mobile species, like turtles, sharks, rays and other fish.
- The review warns that despite the successes of local initiatives, climate change remains the biggest threat to coral reefs in Bali and around the world.
‘They died from the spill: The animals that couldn’t escape Peru’s oil slick
- Of the 147 birds — mainly Guanay cormorants, Peruvian boobies and Humboldt penguins — rescued from an oil spill off Lima and brought to the city’s Parque de las Leyendas zoo for treatment, only 79 have survived.
- Mongabay Latam joined officials from SERNANP, Peru’s protected areas agency, as they scoured the oil-hit area around the Guano Islands, Islets and Capes National Reserve System to record the number of affected animals, dead and alive.
- The Jan. 15 spill resulted in 11,900 barrels of oil pouring into the sea, with the company responsible, Spain’s Repsol, reportedly failing to take containment measures immediately.
- The spill has also devastated local fishers, who until then had been recognized by the Peruvian government for their environmentally responsible fishing practices.
Ecuador promises more openness of fisheries information under new initiative
- Ecuador has committed to greater transparency in its fishing industry, under a new global initiative aimed at sustainability through better management.
- Under its commitment to the Fisheries Transparency Initiative (FiTI), Ecuador must grant public access to information related to the management of the country’s marine resources.
- Journalists, civil society groups and even other government agencies have long had their information requests to the fisheries ministry rejected or ignored, and say they hope this will now change.
Community-led coral restoration project is rare hit amid slew of misses in Indonesia
- A recent review published in Marine Policy documented 533 new coral reef restoration projects in Indonesia over the past three decades, signaling a large rise in coral reef restoration projects.
- Although Indonesia’s legal policy framework encourages wide participation in restoration activities, scientists say many of these projects have failed because they lack important monitoring or long-term evaluation.
- In Lombok, a successful community-led reef restoration project has proved to be an outlier, demonstrating the importance of community involvement and post-monitoring care for the corals.
A seagrass restoration project to preserve the past may also protect the future
- Linani Arifin, 40, is a resident of West Yensawai village in Indonesia’s Raja Ampat archipelago, where the coastal ecosystem has been declining due to climate change impacts and development.
- Almira Nadia Kusuma is a young marine scientist who has studied seagrass for years.
- Together, they lead a group of teenagers in West Yensawai in a project to replant seagrass, aiming to protect the village from coastal erosion.
- Globally, seagrasses are disappearing at rates that rival those of coral reefs and tropical rainforests, and Indonesia is considered an important country for seagrass conservation.
Why are Florida manatees showing up in Cuba and Mexico?
- Over the last 15 years, Florida manatees have started appearing in distant parts of Cuba and Mexico, surprising researchers who have long believed the animals wouldn’t cross large bodies of water to reach other suitable habitats.
- The sightings have several still-unproven explanations, including that degraded habitats on the Florida coast are forcing the animals to move elsewhere in the region.
- Others say cell phone technology is allowing people to capture manatee behavior that has always existed.
Scaling Palauan tradition to regional fisheries: Q&A with Noah Idechong
- After training as a traditional hunter and fisherman in his village in Palau as a boy, Noah Idechong has since become a “bit of a legend” in Pacific marine conservation.
- He has been a government official, an activist, a politician, a legislator, and the founder of a domestic conservation NGO. Currently, he’s the executive director for Micronesia and Polynesia at the international conservation NGO The Nature Conservancy.
- In all of these roles, Idechong has focused on one main thing: championing the traditional systems the communities of Palau employ to protect and conserve the archipelago’s rich marine biodiversity and domestic fisheries.
- Today, he’s applying that ethos at a regional scale as he helps build more sustainable regional tuna fisheries that benefit the Pacific island nations in whose waters the tuna swim, rather than foreign fishing enterprises.
Boats behaving badly: New report analyzes China’s own fisheries data
- China’s distant-water fishing fleet, which operates on the high seas and in other countries’ waters, is far bigger and catches far more seafood than those of other nations.
- As a result, and also because of numerous high-profile cases of illegal behavior, the Chinese fleet receives intense scrutiny from international NGOs and the media.
- A new report, based mainly on data China released since enacting transparency measures in 2017 as well as a database of global fisheries violations and crew interviews, identified hundreds of fisheries offenses committed by the fleet between 2015 and 2019, and details a range of human rights abuses and environmentally destructive fishing practices.
- However, some experts say that although the Chinese fleet is by far the biggest, vessel for vessel its behavior isn’t all that different from other fleets, and that all share responsibility to reform.
Troubled waters: A massive salmon farm off the coast of Maine is stalled
- Norwegian-backed American Aquafarms was slated to build the largest salmon farm in North America along the coast of the U.S. state of Maine, using a closed-pen system said to minimize waste.
- But opponents say the closed-pen technology is untested at such a large scale, and warn that environmental impacts will devastate the pristine waters.
- The proposed salmon farm would have been right at the shorelines of Acadia National Park, threatening the region’s untarnished views and noise pollution.
- Currently, the project is indefinitely delayed as state officials terminated the lease application on April 19th. However, with Maine leasing the ocean for only $100 an acre ($250 a hectare) per year, opponents worry that future investors will see the coast as a lucrative target.
To get people thinking about seagrass, Seychelles coins new Creole words
- A Seychelles organization led a campaign to adopt Creole words for different types of seagrasses found in the country’s coastal waters.
- This move was part of a campaign to spread awareness about seagrasses’ value in protecting coastlines, providing habitat for marine life, and sequestering carbon.
- Seychelles has an estimated 20,000 km2 (7,700 mi2) of seagrass meadows in its waters, but those around the inner islands are under pressure from development and other human activities.
- In 2021, the nation pledged to protect 100% of its mangroves and seagrass meadows as part of its nationally determined contribution to the Paris Agreement.
Pilot program tries to get U.S. aquariums to raise their own fish, not catch them
- A collaboration between the New England Aquarium in Massachusetts and Roger Williams University in Rhode Island has developed protocols for breeding marine aquarium fish, including five species never before raised in captivity.
- Though some fisheries for ornamental fish are responsibly managed and benefit local economies, harmful collection practices like cyanide fishing and overcollecting can harm ecosystems.
- Aquaculture of ornamental fish can improve fish welfare, reduce the spread of disease, take the guesswork out of fish sourcing, and reduce impacts on wild populations.
Oceans conference comes up with $16b in pledges to safeguard marine health
- The seventh Our Ocean Conference took place in the Pacific island nation of Palau on April 13 and 14.
- Representatives of governments, the private sector, civil society groups and philanthropic organizations made 410 commitments worth more than $16 billion toward improving the health, productivity and protection of the world’s oceans.
- Discussions focused around the importance of ocean-based climate solutions and the linkage between healthy oceans and healthy communities.
- The setting in a small island developing state lent the event a unique perspective, underscoring the crucial role and leadership of Indigenous peoples and local communities in tacking the climate change and ocean crises.
Global biodiversity is in crisis, but how bad is it? It’s complicated
- Biodiversity has been defined as one of nine planetary boundaries that help regulate the planet’s operating system. But humanity is crossing those boundaries, threatening life on Earth. The big question: Where precisely is the threshold of environmental change that biodiversity can withstand before it is destabilized and collapses planetwide?
- The planetary boundary for biodiversity loss was initially measured by extinction rates, but this, as well as other measurements, have proved to be insufficient in determining a global threshold for biodiversity loss. At present, a worldwide threshold for biodiversity loss — or biosphere integrity, as it is known now — remains undetermined.
- However, thresholds for biodiversity loss can be clearly defined at local or regional levels when an ecosystem goes through a regime shift, abruptly changing from one stable state to another, resulting in drastic changes to biodiversity in the changed ecosystem.
- While the planetary boundary framework provides one way of understanding biodiversity or biosphere integrity loss, there are many other measures of biodiversity loss — and all point toward the fact that we are continuing to dangerously destabilize life on Earth.
Stranded coal barge spills cargo, disrupts fishery in Indonesian waters
- An Indonesian coal barge that ran aground off East Java has reportedly spilled much of its cargo and disrupted the local fishery.
- Local fishers blame the spill for turning the water in the area dark and affecting their fishing activities.
- An environmental group has called for an investigation by fisheries and environmental agencies into the incident.
- Indonesia is one of the world’s biggest producers of coal, but has paid a heavy price for that standing, including the massive deforestation wrought to mine the fossil fuel, as well as the numerous environmental and safety incidents associated with transporting and burning it.
‘Resilient’ leatherback turtles can survive fishing rope entanglements. Mostly
- Leatherback turtles are highly vulnerable to getting entangled in lobster pot fishing gear off the coast of Massachusetts.
- A new study now shows that they can largely survive these entanglements — if they’re reached by rescuers in time, and their injuries are treatable.
- However, researchers say the lobster fishery must move toward a ropeless model to ensure that leatherbacks, and other marine animals, can survive over the long term.
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