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topic: Marine Biodiversity
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In Kenya’s Jomvu Creek, women help restore a vanishing coast through crab farming
- On the outskirts of the coastal Kenyan city of Mombasa, a women’s organization in Jomvu Creek aims to transform livelihoods and the environment through mud crab farming.
- A blue economy grant is allowing the women to establish a crab-fattening enterprise and build a boardwalk through the creek, with hopes of boosting ecotourism.
- In a good month, the women’s crab sales amount to $310, meaningful income in an area where many had said they were living hand to mouth.
- Beyond income, the Jomvu women see themselves as caretakers of the creek, linking crab farming to mangrove restoration and planting nearly 1 million seedlings; the trees stabilize the shoreline, reduce erosion and create nursery habitats for fish and crabs.
Cambodia’s canal mega-project threatens coastal communities and marine life
- The Cambodian government is set to begin construction of the Funan Techo Canal, a nearly $1.2 billion, 180-kilometer (112-mile) waterway navigation project that will cut across four provinces to connect the Mekong River to the sea.
- The primary rationale for building the canal is to reduce Cambodia’s shipping costs as well as to generate jobs and economic development.
- Mongabay has followed this mega-project’s development for more than a year, speaking with more than 50 people living along the canal’s proposed route. Virtually everyone we spoke with noted that the government has provided very little information about the project, and amid the uncertainty, fear has taken root.
- In coastal communities in Kep province, where the canal will meet the sea and a new port and deepwater shipping lanes will be built, fishers we spoke with said they worried they’d lose their homes and that construction would render their already meager fishing grounds barren and inaccessible.
Abandoned tuna-fishing devices pollute the Galápagos Marine Reserve
- The tuna industry commonly uses fish aggregating devices (FADs) to efficiently collect large volumes of fish; when these devices are lost or abandoned, they can harm marine wildlife and habitats.
- In Ecuador, lost FADs can drift into the Galápagos Marine Reserve, a protected area with hundreds of endemic and threatened species, where they pollute the environment with plastic, harm reefs and entangle wildlife.
- Local agencies and organizations are developing ways to prevent FADs from entering the marine reserve in the first place and trying to clean up the mess they make when they do get in.
Critical shark and ray habitats in Western Indian Ocean largely unprotected: Study
- Almost half of the Western Indian Ocean’s shark and ray populations are considered threatened with extinction, as populations decline.
- The Important Shark and Ray Areas (ISRAs) project has mapped out 125 areas across the Western Indian Ocean that are critical for the survival of many species.
- Yet only 7.1% of these ISRAs fall within existing marine protected areas, and just 1.2% are in fully protected areas where fishing is prohibited.
- Researchers identified challenges related to fishing pressure as the most significant threat to sharks and rays in the region.
Whale sharks released from nets along India’s coast as fishers turn rescuers
- Once hunted and butchered for oil and meat, whale sharks (Rhincodon typus) are now being rescued by fishers along India’s western Arabian Sea coast.
- Since 2001, the nonprofit Wildlife Trust of India has been educating fishing communities about whale sharks, training fishers in safe disentanglement techniques and offering compensation for destroyed nets.
- During that time, more than a thousand whale sharks have been released from accidental entanglement in fishing nets along India’s west coast.
- However, experts say the compensation for rescues remains insufficient and that social security, insurance, training and livelihood-linked incentives should be offered to protect the fishers who engage in whale shark rescues.
Coast-to-coast coral assessment reveals Thailand’s reefs losing complexity
- Marine scientists have documented Thailand’s coral reefs in unprecedented detail, providing a crucial baseline against which reef managers can measure future change.
- The surveys indicate that, as in other parts of the world, Thailand’s reefs are losing structural complexity, becoming dominated by simpler boulder-forming corals, while staghorn and branching species die out.
- Experts say the new baseline can help steer future strategies to prepare for future bleaching events through reef restoration and assisted reproduction.
- The surveys were conducted just before the full effects of the 2024 global bleaching event were felt in Thai waters, which will have inevitably taken an as-yet-unquantified toll on the region’s reefs.
More than 5 years after Wakashio oil spill, questions linger in Mauritius
- In 2020, amid the chaos of the pandemic, the island nation of Mauritius was hit by one of the worst environmental disasters in its history when the MV Wakashio, owned by Nagashiki Shipping, crashed into the coral reef barrier off the southeastern part of the island.
- The ship spilled around 1,000 metric tons of oil into the waters near three sites of ecological importance; more than five years on, conservationists and fishers say the Mauritian government quietly allowed the entire episode to fade from public memory, with little scrutiny.
- When Mongabay visited mangroves in 2025 that had been affected by the oil spill, fuel oil still lingered in the water-soaked earth; it could persist for decades, experts warn.
- Vikash Tatayah at the Mauritian Wildlife Foundation facilitated the evacuation of animals considered at risk due to the oil spill, including lesser night geckos, to the U.K.; eggs from the geckos and their descendants were returned to Mauritius in 2025.
Study tracks fishing boats to see how heat waves affect fish distribution
- A new study suggests an early way to detect ecological shifts during marine heat waves: Use fishing vessel tracking data.
- The study found that tracking data could provide early detection of extreme northward and inshore shifts in albacore tuna and Pacific bluefin tuna distribution in response to heat waves and showed when such shifts weren’t happening despite high sea surface temperatures.
- The authors position fishers as “apex predators” and build on research that finds that predators are good ecosystem sentinels.
North Atlantic right whale births increase
Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. Scientists monitoring North Atlantic right whales have recorded an increase in births this winter. Fifteen calves have been identified so far, an encouraging figure for a population that has struggled to sustain itself. There were an estimated 384 […]
Azores must respect its exceptional network of marine protected areas (commentary)
- Just over a year ago, the Azores created the largest network of marine protected areas (MPAs) in the North Atlantic, becoming a beacon of hope and a global leader in ocean conservation.
- Then, in early 2025, a proposal to allow tuna fishing in “no-take” areas there was submitted to the Regional Assembly; this is currently under discussion and could come to a vote this week or next week.
- “Such a retreat from ocean protection would not only be a local tragedy but also a disheartening contribution to the global backpedaling on environmental political will,” a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Top ocean news stories of 2025 (commentary)
- Marking the midway point in the U.N. Decade of Ocean Science for Sustainable Development, 2025 was a key year for the ocean.
- The past 12 months brought landslide multilateral wins for ocean policy, unprecedented ocean financial commitments, and increasing momentum to protect 30% of the ocean by 2030.
- Here, marine scientists, policy experts and a communications expert lay out the key ocean stories from the past year.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
Century-old corals reveal the Pacific Northwest is acidifying faster than expected
- When compared with historical samples, corals show that the Salish Sea and California Current System are acidifying faster than anticipated because of greenhouse gas emissions. Models indicate that at this rate, carbon dioxide levels in the oceans will continue rising faster than concentrations in the atmosphere.
- Increasingly acidic seas pose growing risks to sensitive marine life, from clams and oysters to any organism with a spine, as well as economically important fisheries and the communities that depend on them.
- British marine ecologist Stephen Widdicombe calls the threat existential. Our continued failure to cut emissions can only lead to “a world where uncontrolled climate change including ocean acidification leaves us with an ocean that is less productive, less diverse and less able to provide humans with the wealth of services that we currently all benefit from,” he said.
Zombie urchins & the Blob: California sea otters face new threats & ecosystem shifts
- Southern sea otters living along California’s coast are struggling in warmer seas, with new threats and changing food sources. They, like the other two sea otter subspecies, are classified as endangered.
- Human disturbance, especially in Monterey Bay, is limiting the otters’ ability to forage, impacting mother and pup survival. Meanwhile, sharks are expanding their range as waters warm, with increasing attacks on otters.
- Following a mass die-off of the purple sea urchin’s predators — sunflower and ochre sea stars — the urchins decimated kelp forests, which are important sea otter habitat. Mussels then proliferated, replacing urchins in the otter’s diet, and invasive green crabs are now also on the menu.
- Otter numbers seem to be dropping, but a definitive census has not been conducted since 2019. A new population estimate based on data and statistical modeling is due to be released soon.
The lab-in-a-backpack busting illegal shark fins: Interview with Diego Cardeñosa
- Diego Cardeñosa chose lab-based DNA research over fieldwork during his Ph.D. on sharks, betting it could deliver greater conservation impact despite being less glamorous.
- He developed a portable, rapid DNA test — like the kits used during the COVID-19 pandemic — that allows inspectors to identify shark species from fins on the spot, solving a key bottleneck that let illegal shipments slip through.
- The tool has evolved from identifying a handful of protected species to distinguishing among more than 80 sharks and rays in a single test.
- Now deployed across multiple countries, the relatively low-cost kit is expanding through grant support, with plans to adapt the technology to other trafficked wildlife beyond sharks.
Global manta and devil ray deaths far exceed earlier estimates: Study
- A new global assessment estimates more than 259,000 manta and devil rays (genus Mobula) die in fisheries each year, far exceeding previous figures, with researchers warning that the true toll is likely higher due to major data gaps.
- Small-scale fisheries account for 87% of global mortality, with India, Indonesia, Sri Lanka, Myanmar and Peru responsible for most mobulid deaths .
- The study documents steep, long-term declines, including in Mozambique, the Philippines and the eastern Pacific Ocean. Yet many losses came to light only recently due to late adoption of monitoring and weak reporting.
- Researchers say the recent uplisting of all mobulid species to CITES Appendix I, which bans international commercial trade, is a key step, but note that national-level protections, improved data reporting, gear reforms, and better spatial management are needed to reduce mortality.
Study warns of major funding gap for 30×30 biodiversity goal
A new study launched at the U.N. Environment Assembly in Nairobi warns that international funding to help countries meet the global “30×30” biodiversity target is rising but remains billions of dollars short of what is needed. The State of International 30×30 Funding report has tracked public and philanthropic support for protected and conserved areas in […]
Unregulated tourism risks disrupting Timor-Leste’s whale migration
- 2025 has been a big whale tourism season in Timor-Leste; operators were fully booked during the peak season of September to December.
- But increasingly aggressive practices fueled by competition between tour operators could mean “another Sri Lanka,” where whales already stressed by climate-induced food scarcity are disappearing from the area.
- East Timorese are mostly excluded from the sector, which is controlled by expats and foreign tour operators raking in thousands from “bucket listers” and social media “influencers.”
- Whale tourism in Timor-Leste needs regulation, enforcement and legal compliance to ensure sustainable, inclusive growth, experts say.
The last of the Vaquita Porpoise (cartoon)
With an estimated less than 10 individuals alive, the vaquita porpoise of the Gulf of California is on the brink of extinction. Entanglement in gill nets used for fishing totoaba fish in the Sea of Cortez has been the prime threat to vaquitas, and while bans are already in place, the lack of enforcement leaves […]
‘Myopic’ fisheries managers toy with a new ‘tragedy of the commons’ (commentary)
- There are many examples of “tragedies of the commons,” whether in the atmosphere as a result of carbon dioxide pollution, or in the oceans because of marine plastics. But arguably the largest in the world is caused by overfishing, a new op-ed argues.
- The general absence of effective fisheries regulations that ensure the conservation of healthy fish populations endangers whole oceans and the billions of people who depend upon fish for their livelihoods.
- “Currently, fisheries ministers are myopically obsessed with the pain the industry always claims it would suffer next year if the right conservation policies were adopted. They should look instead at how long we have been getting it wrong, and how quickly things could be turned round,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Abrolhos: A South Atlantic marine treasure in need of protection
- Located off the coast of the Brazilian states of Bahia and Espírito Santo, the vast Abrolhos Seascape is home to some of the South Atlantic Ocean’s richest marine biodiversity. Here, more than 500 species inhabit coral reefs, mangrove forests and islands. Brazil’s largest humpback whale breeding ground also occurs within the seascape.
- Yet little legislation has been created to protect this region, leaving it at risk of predatory fishing and deep-sea mining: Less than 2% of the South Atlantic’s largest coral reef, which occupies 46,000 square kilometers within the wider Abrolhos Seascape, is fully protected.
- A recent study identified critical areas and vulnerable ecosystems within Abrolhos Seascape that the authors say need urgent conservation action; these include rhodolith beds — clusters of limestone rock that are crucial for climate security and marine species reproduction.
‘Forever chemical’ contamination could undermine sea otters’ fragile recovery in Canada
- Sea otters living along the coastline of Canada’s British Columbia province are exposed — and absorb — forever chemicals, a new study shows.
- Each of the 11 sea otters tested carried residues PFAS chemicals, with concentrations higher for those living near dense human populations or shipping lanes.
- The Canadian government released an assessment earlier this year recommending that PFAS be classed as toxic and is moving toward adopting tighter rules for these chemicals. Environmentalists support the initiative.
For sharks on the brink of extinction, CITES Appendix II isn’t protective enough (commentary)
- Listing shark species under CITES Appendix II, which allows for well-monitored sustainable trade, has helped to save some sharks from extinction. But some species are so threatened that they need to be listed on Appendix I, which bans all trade.
- New research has revealed that many fins belonging to sharks protected by Appendix II are still being sold in large numbers in Hong Kong, one of the biggest markets, supporting the need for action on Appendix I listings for some species at the CITES COP20 meeting that commences next week in the Uzbek city of Samarkand.
- “Governments meeting at COP20 in Uzbekistan should follow the science, support these proposals, and help save these sharks and rays from the brink of extinction. It’s the only way to give these species a fighting chance at survival,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Lethal dose of plastic for seabirds and marine animals ‘much smaller than expected’
- A new study looking at the impacts of plastic ingestion by seabirds, sea turtles and marine mammals found that relatively small amounts of consumed plastic can be deadly.
- The research analyzed the necropsy results for more than 10,000 animals and quantified the amount of plastic that could prove deadly as well as the types of plastic with the biggest impact, which included synthetic rubber, soft plastics (such as plastic bags and wrappers) and discarded plastic fishing gear.
- Overall, one in five of the deceased animals had consumed plastic (affecting 50% of all studied sea turtles, 35% of seabirds and 12% of marine mammals); nearly half of the species studied were considered threatened or near threatened on the IUCN Red List.
- The researchers didn’t consider other health impacts of plastic, such as chemical exposure and entanglement, which led the lead author to conclude the study likely underestimates the “existential threat that plastic pollution poses to ocean wildlife.”
Offshore fossil fuel exploration jeopardizes Brazil’s climate leadership, study says
- Ahead of the COP30 U.N. climate summit in Brazil, a report by environment-monitoring organization SkyTruth mapped the environmental impact of the advance of offshore exploration for fossil fuels in Brazil, criticizing the country’s unfulfilled energy transition promises.
- The study detected 179 probable oil slicks in Brazilian waters since 2017, as the oil and gas sectors boomed. Analyses showed that traffic from fossil-industry vessels grew by 81% between 2012 and 2023, while methane burning skyrocketed — releasing into the atmosphere the equivalent emissions of 6.9 million cars annually.
- According to the investigation, Brazil still embraces environmentally controversial initiatives, such as oil exploration at the mouth of the Amazon River. This agenda brings risks to rich marine ecosystems and Indigenous and traditional communities, moving the country further away from its climate and conservation goals.
Trade in marine fish for aquariums includes threatened species, lacks oversight: Study
- A new study of major U.S.-based online retailers of marine fish bound for aquariums found that nearly 90% of traded species are sourced exclusively from the wild, including a number of threatened species, and that the trade is poorly tracked.
- The study raises concerns about the ecological impact of the trade on marine ecosystems, including around coral reefs, in countries such as Indonesia and the Philippines, where the fish are caught.
- Experts called for more work to develop sustainable fisheries and aquaculture in coastal communities in the Global South, and for building consumer awareness and establishing eco-certification schemes.
Study maps whale shark stranding hotspots in Indonesia, highlights conservation needs
- A new study has identified whale shark stranding hotspots in Indonesia and linked them to seasonal ocean conditions, offering scientists a clearer picture of when and where risks are highest.
- The researchers found that most strandings involved juveniles and often occurred during upwelling seasons; they highlighted that human pressures such as fishing gear, ship traffic and pollution may further increase the danger.
- The study calls for stronger rescue networks, better community training, and international cooperation to improve survival rates and protect these migratory animals across the region.
Pakistan declares its third marine protected area, but has a long way to go
- In September, Pakistan declared its third marine protected area, around Miani Hor Lagoon on the country’s central coast.
- The biodiversity-rich lagoon hosts a lush mangrove forest, numerous bird species and threatened marine mammals.
- Conservationists welcomed the new marine protected area as a baby step toward meeting the country’s so-called 30×30 commitment to protect 30% of its land and sea by 2030. However, the new addition puts Pakistan’s total protected marine area at just 0.23% of its marine and coastal jurisdiction.
- The scope of protections for the new protected area remains to be determined. Local people expressed concern that restrictions could upend the livelihoods of the local community, which depends on the lagoon and mangroves and already lacks basic necessities.
Mongabay launches dedicated Oceans Desk to expand global reporting on marine ecosystems
- Mongabay has launched a dedicated Oceans Desk composed of a global team of journalists specialized in reporting on oceans, fisheries and marine conservation.
- The desk, which includes editors, reporters and program directors from across Mongabay’s newsroom, marks a strategic shift to deepen our coverage of marine ecosystems.
- Mongabay’s ocean reporting has already led to real-world impacts, including exposing corruption in Chilean marine protected area management and informing international sanctions on a Chinese fishing company related to illegal shark finning and abusive labor practices.
- The Oceans Desk marks a milestone in Mongabay’s growth over more than two decades and strengthens the organization’s ability to inform, inspire and sustain effective action on marine conservation worldwide.
Expedition charts Cook Islands seafloor, amid scrutiny over mining motives
- Between Oct. 1 and 21, a U.S government-funded vessel, the E/V Nautilus, conducted an expedition in the Cook Islands’ exclusive economic zone (EEZ), following an agreement between the U.S. and the Cook Islands to “advance scientific research and the responsible development of seabed mineral resources.”
- During the 21-day expedition, the E/V Nautilus mapped more than 14,000 square kilometers (5,400 square miles) of the Cook Islands’ seafloor while also documenting deep-sea biodiversity.
- Environmental activists protested the expedition, arguing it would help accelerate deep-sea mining in the Cook Islands. The crew of the E/V Nautilus, however, rejects the accusation.
- The Cook Islands government has issued three deep-sea mining exploration licenses, which will expire in 2027. One company operating in the Cook Islands has said it hopes to apply for an exploitation license in 2027.
Scientists call for stronger action to save Indonesia’s vanishing seagrass meadows
- Marine experts at the Indonesian Seagrass Symposium in Bali warned that seagrass ecosystems — vital for carbon storage, biodiversity and coastal protection — remain largely overlooked in national policy and conservation efforts.
- Seagrass coverage in Indonesia has fallen from around 30,000 km2 in 1994 to about 8,000 km2 today, with losses driven by pollution, mining, coastal development and sedimentation that reduces water clarity and habitat quality.
- Indonesia holds some of the world’s most extensive remaining seagrass meadows, estimated to store more than 30 million metric tons of CO2, making their protection crucial for both national and global climate goals.
- Scientists and conservation leaders urged stronger data collection, funding and institutional capacity to support restoration, monitoring and community participation, positioning Indonesia as a potential leader in seagrass conservation.
Antarctic conservation summit closes with stalemate on MPAs & krill fishing rules
- The annual meeting of the international body responsible for the conservation of Southern Ocean marine ecosystems concluded Friday with no progress on two contentious issues before it: the creation of new marine protected areas and the strengthening of regulations governing the fishery for krill (Euphausia superba), a species on which numerous iconic species of Antarctic wildlife depend.
- This year’s annual meeting of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) was particularly tense, due to a clash between two occasionally overlapping groups of countries: on one side, those working to establish new marine protected areas (MPAs), and on the other, those more focused on increasing krill fishing.
- CCAMLR has considered proposals to establish three large MPAs annually for years but has failed to pass them under its consensus-based decision-making process. This year was the same, due to vetoes of MPA proposals by Russia and China.
- The combination of a lack of will to reinstate previously agreed regulations governing the krill fishery and a new push to drastically increase the krill harvest suggests a change in direction at CCAMLR toward more permissive fishing.
Chaos on Cambodia’s Coast
Along Cambodia’s rapidly transforming coastline, illegal trawling, elite-backed development, and weak enforcement are driving marine ecosystems and fishing communities to the brink. This 2024 series investigates the institutional breakdown behind the country’s marine crisis, from ineffective patrols in protected areas to billion-dollar land deals displacing small-scale fishers. It examines the competing interests reshaping Cambodia’s coast, […]
Night dives reveal hidden alliances between young fish and larval anemones
- A new study, drawing on nighttime underwater photography, documented previously unknown “symbiotic associations” between juvenile fish and larval anemones, with some fish staying close to the anemones, and others carrying them around.
- The study suggests the fish may gain protection from predators by associating with the toxic anemones, while the anemones could benefit from being transported by the fish to new parts of the ocean.
- An outside expert also proposed that anemones might receive additional benefits, such as nutrients from the fish’s excretions or from food scraps left behind.
- All of the experts emphasized that more research is needed to fully understand the dynamics of these relationships.
Scientists map Italy’s entire coast to guide seagrass and marine recovery
- Posidonia oceanica is a Mediterranean seagrass whose meadows act as a carbon sink, a coastal protector and a nursery for marine life.
- This ecosystem is under severe threat from human activities, including illegal trawling, pollution and boat anchoring, resulting in significant degradation and loss of biodiversity.
- Italy is employing sophisticated sensors to create an unprecedentedly detailed and comprehensive map of its entire coastline, including its Posidonia meadows, in an effort to improve management and conservation of its marine habitats.
- While large-scale mapping provides the blueprint, targeted protection and restoration efforts demonstrate that it’s possible to reverse the damage and bring life back to the sea.
Norway’s proposal to double krill harvests raises tension at Antarctic conservation summit
- Norway has proposed almost doubling the catch limit for krill in the Southern Ocean, a proposal that has exacerbated tensions at the annual meeting of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) in Australia. Conservationists have expressed concern because the continent’s iconic wildlife depend on krill for sustenance.
- The CEO of Aker BioMarine, a Norwegian company that dominates the Southern Ocean krill catch, said it has been working with CCAMLR member countries to advance the proposal as well as create a marine protected area around the Antarctic Peninsula.
- Chinese and Russian delegates have voted for years to veto new marine protected areas in the Southern Ocean.
- Russia came into the spotlight at this year’s meeting following its arrest of Leonid Pshenychnov, a researcher at the Ukrainian Institute of Fisheries, Marine Ecology and Oceanography and a longtime member of the Ukrainian delegation to CCAMLR.
On first International Day of the Deep Seabed, we seek stewardship and consensus (commentary)
- “I could not be more delighted to celebrate this inaugural International Day of the Deep Seabed,” writes the secretary-general of the International Seabed Authority (ISA) in a new op-ed at Mongabay.
- On Nov. 1, 2025, she notes that the world will for the first time mark a day that celebrates the great biodiversity of the planet’s mysterious deep seabed and its potential role in the future of humanity’s progress, while reiterating that consensus-building among member states and nongovernmental actors remains critical to ensure its stewardship.
- “Together, by delivering on our commitments under the Law of the Sea, we can ensure that this last great frontier remains a source of wonder, discovery, opportunity and shared benefit for all humankind,” she argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
In Mauritius, an NGO is tracking the sex life of corals to save them
- Mauritius will soon be home to one of the largest projects in the Western Indian Ocean aimed at restoring corals through sexual propagation.
- The scientific research for the Odysseo coral restoration initiative is led by U.S.-based nonprofit Secore, which has also worked in the Caribbean Sea and reported success in breeding heat-tolerant corals.
- The initiative aligns with a recent policy push by the Mauritian government to promote coral restoration through sexual propagation as opposed to through asexual methods.
- However, this method of coral restoration is in its nascency in this region, and Secore is currently focused on gathering knowledge that will help it choose species to breed, donor sites to collect sperm and egg cells, and transplanting sites for newly grown coral.
Mauritius rethinks coral restoration as reefs suffer from another mass bleaching
- The island nation of Mauritius is home to nearly 250 kinds of corals, but saw 80% of its corals bleached in the latest mass bleaching caused in part by climate change.
- Faced with lackluster results from an audit of restoration efforts earlier this year, the Mauritian government moved to reevaluate its coral restoration policy.
- The predicament of the island nation highlights concerns raised by some scientists who question whether coral restoration works in the face of mounting threats: from heat stress, ocean acidification and marine pollution.
- For now, Mauritius is not abandoning restoration but advocating a different path: promoting sexual propagation rather than the asexual means currently used in most coral restoration projects worldwide.
Report finds dangerous mercury levels, highlights mislabeling in shark meat sold in EU
- Nearly a third of shark meat samples taken from products sold in Europe contained dangerously high methylmercury levels, with all tope shark and almost a quarter of blue shark samples exceeding EU safety limits, a new study finds.
- Much shark meat is mislabeled under names like rock salmon, huss or veau de mer, leaving consumers unaware they’re eating shark and could be ingesting a potent neurotoxin.
- Methylmercury can’t be cooked out, builds up in human tissue and can cause lasting neurological harm. Meanwhile, shark populations are declining, threatening marine ecosystem stability.
- The study’s authors urge stricter labeling laws, tighter food monitoring and consumer education, arguing that eating apex predators is both ecologically and medically unsustainable.
Two years later, no closure for family of missing Ghanaian fisheries observer
- Samuel Abayateye, a father of two, tasked with monitoring a Ghana-flagged tuna-fishing vessel, was reported missing on Oct. 30, 2023.
- Two years on, his family still hasn’t receive any formal updates from the Ghanaian police or any other agency about what happened to Abayateye.
- The authorities haven’t shared the results of a DNA test on a body found a few weeks after Abayateye went missing, which the family believe was his.
- Mongabay made repeated attempts to contact the police, but didn’t receive a response about the case.
Australia celebrates ‘humpback comeback,’ but a main food source is under threat
News of Australia’s “humpback comeback” is making waves globally. Numbers of humpback whales (Megaptera novaeangliae) on the nation’s east coast have rebounded to an estimated 50,000 from a historic low of just a few hundred before commercial whaling was outlawed in the 1970s. And wildlife scientist and whale expert Vanessa Pirotta joins the podcast to […]
Mexico adopts protections for Atlantic sharks
Mexico recently adopted national regulations protecting several threatened shark species in the Atlantic from being caught or retained as bycatch. Shark conservationists welcome the protections but say they are long overdue, coming years after the country’s commitments to a multilateral fishery regulator. Mexican fisheries catch a significant number of various shark species in the Atlantic […]
Arctic seals edge closer to extinction as sea ice vanishes
- Three Arctic seal species have been moved up to higher threat categories on the IUCN Red List, with one now endangered and two now near threatened.
- Global warming is melting away the sea ice they need for breeding, resting and feeding, which has led to widespread breeding failures among ice-dependent seals.
- Loss of sea ice is also opening the region to more human activity, including shipping and oil exploration, bringing added disturbance, noise and pollution.
- The IUCN warns a similar pattern is emerging in the Antarctic. It says urgent global emissions cuts, along with stronger local protections such as reducing bycatch and pollution, are needed to prevent further declines.
Global conservation body takes first step to protect ocean’s twilight zone
- Delegates at the IUCN World Conservation Congress in Abu Dhabi voted to adopt a motion urging precautionary measures to protect the ocean’s mesopelagic zone.
- The nonbinding motion calls for prospective activities such as fishing in the mesopelagic zone, deep-sea mining and geoengineering to be guided by the best available science and approached with caution.
- Both conservationists and industry representatives expressed support for the motion, highlighting the mesopelagic zone’s ecological importance and potential as a sustainable resource.
Booming sea otters and fading shellfish spark values clash in Alaska
- In Alaska, a state brimming with iconic wildlife — from grizzly bears to king salmon, humpback whales to harbor seals — the charismatic, densely coated sea otter stands out as perhaps the state’s most hotly debated, controversial species.
- Sea otters were nearly hunted into extinction a century ago for their luxurious pelts. But they have been surging in population in the Gulf of Alaska, bringing both benefits to nearshore ecosystems and drawbacks to the shellfish economy (due to the otters’ voracious caloric needs).
- Described by commercial shellfish harvesters and Native Alaskans as pillagers of clams and crabs, sea otters are seen by many marine biologists as having positive impacts on kelp forests — important for biodiversity and carbon storage. Scientists stress that shellfish declines are complex, with sea otters being just one among multiple causes.
- Native Alaskans are the only people given free rein to hunt sea otters. But long-standing federal regulations stipulating who qualifies as Native Alaskan make it illegal for most to manage their own waters. Tribes are fighting for regulatory changes that would enable them to hunt and help balance booming sea otter populations.
Rare dugong calf sighting in Alor spotlights seagrass & marine mammal conservation
- A rare sighting of a dugong calf in Alor, Indonesia, has renewed focus on the health of the region’s seagrass ecosystem and the species’ fragile future.
- Conservationists say the presence of multiple dugongs indicates a thriving habitat, but threats from tourism, habitat loss and limited population data remain pressing concerns.
- Authorities and experts are pushing for stronger monitoring and coordinated conservation strategies under a forthcoming national action plan.
South African sharks threatened by fisheries, weak enforcement
- The only permit holder in South Africa’s demersal shark longline fishery has been reported breaching permit regulations, raising questions about the sustainability of the fishery.
- The fishery targets critically endangered and endangered shark species with no catch limits in place to prevent overfishing.
- Target species are already depleted, according to scientific assessments, while little is known about bycatch of other protected and endangered species.
Mining the deep-sea could further threaten endangered sharks and rays
- A new study indicates that deep-sea mining could threaten at least 30 species of sharks, rays and chimaeras, many of which are already at risk of extinction.
- The authors found that seabed sediment plumes and midwater discharges of wastewater from mining activities could cause a range of impacts on shark, ray and chimaera species, including, but not limited to, disruptions to breeding and foraging, alterations in vertical migration, and exposure to metal contamination.
- The authors recommend precautionary measures, including improved baseline monitoring, the development of protected zones, and discharging wastewater below below 2,000 m (about 6,600 ft).
- With companies planning to begin deep-sea mining in international waters as early as 2027, the authors say more research is urgently needed to understand the full ecological impact of this emerging industry on biodiversity.
Green turtle rebounds, moving from ‘endangered’ to ‘least concern’
The green turtle, found across the world’s oceans, is recovering after decades of decline, according to the latest IUCN Red List assessment. The species has been reclassified from endangered to least concern. “I am delighted,” Brendan Godley, a turtle expert from the University of Exeter, U.K., told Mongabay. “It underlines that marine conservation can work, […]
Indonesia falls short in bid to increase its share of southern bluefin tuna catch
- The Commission for the Conservation of Southern Bluefin Tuna (CCSBT), a multilateral body that manages the stock of southern bluefin tuna, held its annual meeting Oct. 6-9 in Bali, Indonesia.
- Indonesia pushed for a larger share of the global catch, which is currently dominated by Australia and Japan, but CCSBT members instead kept each nation’s share unchanged.
- Members also agreed to once again fully fund a key stock monitoring program, and to set up a future meeting for discussion of seabird protection in the fishery, amid criticism from conservationists that the commission hasn’t done enough to protect seabirds.
First oarfish sighting in Sri Lanka highlights citizen science in marine protection
- Scientists have documented the first-ever record of an oarfish (Regalecus russellii) in Sri Lanka, a 2.6-meter (8.5-foot) specimen caught off the country’s western coast.
- The find expands the known distribution of oarfish into the Indian Ocean, offering a new baseline for studying this rarely seen deep-sea species.
- Meanwhile, another oarfish was recorded in India’s Tamil Nadu this year, while within 20 days, three oarfish have been recorded from Australia and New Zealand, puzzling naturalists.
- The importance of promoting citizen science and raising awareness among fishers is needed.
Will California’s marine mammal conservation success come undone?
- With protection, many of California’s marine mammals — including whales, sea lions and seals — have made remarkable recoveries over the last half-century since bipartisan passage of the U.S. Marine Mammal Protection Act.
- However, climate-linked changes have now pushed the gray whale population into a state of collapse.
- Despite comebacks, marine mammals face a plethora of threats from pathogens, pollutants — including oil and plastic — disappearing food and more.
- In California, people and institutions are fighting for marine mammals and ocean biodiversity, but federal protections could be substantially weakened if proposed amendments to the Act move ahead.
Octopus farming is a dangerous detour for marine conservation (commentary)
- Proponents of octopus farming claim it can reduce fishing pressure on wild octopus populations by supplying the seafood industry, and even suggest that these efforts could contribute to restocking wild populations in the future.
- In reality, they have a poor feed conversion rate, requiring a large amount of wild-caught marine protein to produce a relatively small amount of octopus, which risks exacerbating, rather than easing, pressure on wild fish populations and marine ecosystems that depend on them, the author of a new op-ed argues.
- “Octopus farming is a dead end masquerading as a solution. It does not address the root causes of wild population declines — it compounds them. The global community must resist the temptation to exploit another wild species under the guise of sustainability,” the author writes.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Marine life are thriving on Nazi missile debris in the Baltic Sea: Study
As Germany demilitarized after World War II, it dumped massive amounts of its leftover munitions into the Baltic Sea. A recent study has found that some of those submerged weapons, which are still releasing toxic compounds, now host more marine organisms than the sediments around them. In October 2024, researchers used a remotely operated vehicle […]
Indonesia eyes seagrass zoning for blue carbon; experts urge community benefits
- Indonesia is moving to designate 17 seagrass habitats as national strategic areas for blue carbon, a plan that promises climate and community benefits but raises concerns over safeguards.
- The fisheries ministry says the zoning will help cut emissions, protect marine ecosystems and boost coastal livelihoods, with seagrass storing carbon far more effectively than rainforests.
- Experts welcome the initiative but warn it must avoid privatization, ensure fair benefit-sharing and guarantee transparent governance to prevent conflicts and elite capture.
- With Indonesia holding 11.5% of the world’s seagrass meadows, scientists stress the urgency of protection as the ecosystems vanish globally at alarming rates.
Illegal fishing threatens unique marine ecosystem in Peru
- Park rangers who patrol Illescas National Reserve often confront fishers who use chinchorros, a type of fishing net that is banned in Peru.
- The reserve is designated solely as a terrestrial protected area, which often limits the park rangers’ ability to act, as the marine area is outside their jurisdiction.
- Conservationists warn of the urgent need to safeguard this important marine area and its rich biodiversity.
From South America to Asia, seahorses vanish into trafficking pipeline
- In June 2025, Ecuadorian police seized a package containing almost 3,000 seahorses that were likely destined for Colombia.
- Most seahorses are caught in industrial and artisanal trawl nets as bycatch, but they are then funneled into a lucrative illegal trade.
- Researchers have identified the busiest trafficking routes: Peru to China, Hong Kong and Vietnam.
- Seahorses are in high demand for use in traditional Chinese medicine, and are also sold as trinkets and as exotic additions to aquariums.
Study spotlights West Papua habitat as whale sharks face increased pressures
- A new study shows the Bird’s Head Seascape in West Papua is a crucial nursery for juvenile whale sharks, where most sightings involved young males feeding around fishing platforms.
- Researchers documented 268 individuals over 13 years, with more than half showing injuries tied to human activity, raising concerns about fisheries, tourism and emerging mining pressures.
- Scientists warn that protecting these habitats with stricter rules and better management is essential for the survival and recovery of the endangered species.
Long-lost white shark tag traces remarkable journey from South Africa to SE Asia
- The discovery of a satellite tag from a subadult female white shark in Indonesia marks the first recorded connectivity of white shark movement between South Africa and Southeast Asia.
- The white sharks found in South Africa and Australia belong to different genetic pools, which makes the two populations distinct from one another, even though they share the same migratory route.
- The biggest threats facing white sharks in South Africa and Indonesia are unsustainable fishing, where the sharks become both the bycatch and main catch.
- While there are attempts to support local fishers to pioneer shark conservation instead of hunting them, such efforts are thwarted by lack of funding.
As Sri Lanka struggles with ghost nets, volunteer youth lead seabed cleanup
- Abandoned, lost or discarded fishing gear, commonly called “ghost nets,” continue to trap and kill marine animals such as sea turtles, dolphins and whales, long after these nets being discarded in Sri Lankan waters.
- As this fishing gear can travel long distances via winds and ocean currents before sinking, it accumulates along shorelines or converges in large plastic patches in the oceans, becoming a transboundary issue.
- Volunteer initiatives such as The Pearl Protectors are diving to remove ghost nets, successfully recovering tens of hundreds of kilograms of discarded fishing gear from coral reefs and seagrass beds.
- While recycling efforts continue, a Sri Lankan designer has pioneered an innovative upcycling approach, transforming ghost fishing nets into fashion items — merging marine conservation with sustainable creativity to raise awareness of ocean pollution.
Scientists develop sunscreen made from pollen that doesn’t harm corals
Scientists have invented a pollen-based sunscreen, which their results suggest is as effective in blocking harmful ultraviolet rays as sunscreens containing chemicals that contribute to coral bleaching and pollution in oceans. In a recently published study, the researchers also showed their pollen sunscreen doesn’t harm corals. They added 1 milliliter (0.034 ounces) of both their […]
Iberian orcas sink sailboat in latest ramming ‘game’ in Portugal
Five people were rescued after a pod of critically endangered Iberian orcas rammed into a sailboat several times, causing it to sink off Portugal’s Costa do Caparica, near the nation’s capital, Lisbon, on Sept. 13. None of the people on board suffered any injuries, according to the Portuguese maritime authority. The boat, owned by yacht […]
Pet sharks have become cool, but is owning them ethical?
- Owning a shark and keeping it in a home aquarium has become cool — and it’s no longer just the province of tech bros and celebrities.
- But experts note that most home aquariums are inadequate and can lead to stunted growth, deformities and early death.
- Yet sharks are often easy to buy, with some selling for as little as $90 online; zebra sharks (Stegostoma tigrinum), which are endangered, go for around $6,000.
Brazil weighs new measures to manage shark trade, fishing
- The Brazilian government is reviewing its legal framework for the trade in sharks, including fin exports and management of the fishery for blue sharks (Prionace glauca), the only species allowed to be caught in the country.
- At a Sept. 3 meeting, the National Environmental Council (CONAMA), a government advisory body, recommended the government ban shark fin exports and restrict the use of shark-fishing gear known as wire leaders.
- At the same meeting, the Ministry of Environment announced the suspension of an ordinance regulating blue shark fishing, including quotas, due to “increased pressure” on endangered species and flaws in monitoring and enforcement.
- The moves follow a recent Mongabay investigation revealing that government agencies sought to procure thousands of tons of shark meat for meals at public institutions including schools, hospitals and prisons. The exposé was cited at the Sept. 3 CONAMA meeting as well as in a class-action civil suit filed by conservation NGO Sea Shepherd Brasil seeking to ban federal public institutions from issuing tenders for shark meat.
Experimental ocean climate fixes move ahead without regulation
Experimental climate interventions in the world’s oceans are moving ahead in a regulatory vacuum, raising concerns among scientists about potential risks, Mongabay staff writer Edward Carver reported. The projects, known as marine-climate interventions, aim to tackle global warming or help people and ocean life adapt to climate change. But a group of 24 researchers warned […]
An indestructible invasive anemone threatens Chilean Patagonia’s seas
- Native to the northern hemisphere, plumose anemones have spread across Chilean Patagonia.
- Scientists estimate that it was likely introduced in the late 20th century via ship ballast water.
- The exotic species occupies the seabed and displaces native communities of shellfish, mollusks and corals.
- The anemone’s presence is associated with a decline in biodiversity, and artisanal fishers are concerned.
Researchers describe three new-to-science snailfish species off California coast
In 2019, researchers surveying the seafloor off the coast of California came upon three unusual species of small fishes with large heads: one with bumpy pink skin, and the other two both black in color. The team collected the fish using underwater research vehicles and later analyzed their DNA and bodies. Their analysis showed that […]
Post-Blob, California’s kelp crisis isn’t going away
- Kelp forests function as major habitat for marine biodiversity, but are in rapid decline worldwide, largely because of climate impacts on the oceans.
- A 2013 marine heat wave known as “the Blob,” combined with the mass die-off of sea stars, caused a 95% loss of Northern California’s kelp forests.
- The loss of sea stars allowed the purple urchins that they thrive on to spread rapidly, converting lush kelp forests into “urchin barrens” in parts of California. There’s been very little recovery since.
- Restoration of kelp forests is extremely difficult and requires far more resources than are currently being committed.
Philippines protects huge coral hotspot off the coast of Panaon Island
The corals around Panaon Island in the southeastern Philippines form some of the healthiest and most climate-resilient reefs in the world, and they’re now a legally protected seascape. Philippine President Ferdinand Marcos Jr. approved the Panaon Island Protected Seascape law on Aug. 29. It creates a 61,204-hectare (151,200-acre) marine protected area within the Pacific Coral […]
Cruise industry expansion collides with Cozumel’s coral reef
- Mexico’s Cozumel Island is one of the most popular cruise ship destinations in the world, hosting more than 4.5 million tourists every year.
- A plan to build a new pier for cruise ships has attracted concern from Cozumel residents and conservationists, who say it will damage the surrounding reef and block public access to the sea.
- The company behind the project, Muelles del Caribe, maintains the pier will bring financial benefits to the community.
- Conservationists assert that the project’s environmental impact assessment was insufficient; in July, a court ordered a temporary suspension of the project to allow for a more thorough environmental assessment.
‘It doesn’t make sense’: Marine biologist on Kenya’s proposed nuclear power plant
- Kenya is considering building a nuclear power plant in Uyombo, a coastal town in Kilifi county. It would be near Mida Creek mangroves, Arabuko Sokoke Forest Reserve and Watamu National Marine Park and Reserve, all recognized for their high biodiversity, including endemic species and coral reefs.
- The plant’s cooling system could raise water temperatures in the area. This could harm marine life, potentially causing further coral bleaching and disrupting plankton and other critical species, which would, in the long run, affect the entire food chain.
- Residents and environmentalists, including marine biologist Peter Musila, have criticized the project and the government for poor communication, lack of public consultation and insufficient information on nuclear waste management.
- Musila argues Kenya does not need nuclear energy given the country’s renewable energy potential, and such a project raises concerns about potential accidents and long-term impacts on ecosystems and local livelihoods.
Sunscreens protect us but also pose real planetary health concerns
- Sunscreens have become an important part of people’s sun management routine, protecting skin from harmful solar UV radiation. But many of these products contain chemicals that can be harmful to saltwater and freshwater ecosystems, while preliminary findings indicate some ingredients can have health effects.
- Ultraviolet filter chemicals and mineral components found in sunscreens can harm marine species such as corals and help trigger bleaching. In recent years, numerous studies have shown that many of these chemicals persist in the environment and can impact seagrass, fish and other marine life.
- More research is needed to understand the full environmental and health impacts of chemicals used in sunscreens. New formulations using ingredients proven to be safe are required, say analysts, and makers should improve product labelling to better inform consumers, with government regulation potentially necessary.
- Experts also urge caution, noting that while there are environmental concerns surrounding sunscreen chemicals, this should not be understood as a call not to use these products.
Why the BBNJ treaty on marine biodiversity matters more in the Mediterranean (commentary)
- The Mediterranean Sea covers less than 1% of the world’s ocean surface, yet hosts more than 18% of its known marine species, while being beset by unresolved maritime boundaries plus growing pressure from climate change, overfishing and pollution.
- That’s why this marine ecology hotspot needs the new U.N. treaty on oceanic biodiversity (BBNJ), as it offers a unique chance for Mediterranean countries to cooperate on common ground: despite claims that it lies outside of the scope of the agreement, there are legal grounds to claim the contrary.
- “Vast areas of the Mediterranean remain undelimited and unclaimed, existing in a legal gray zone. Under international law, these areas are considered de facto beyond national jurisdiction and therefore within the geographical scope of the BBNJ Agreement,” the authors of a new op-ed argue. “By mobilizing diplomatic, legal and financial resources through its institutions and member states, the EU can help catalyze broader regional ratification and implementation.”
- This post is a commentary. The views expressed are those of the authors, not necessarily of Mongabay.
Ghana passes landmark legislation to protect artisanal fisheries
- Ghana has passed a new fisheries act which aims at strengthening the artisanal fishery sector, restoring fish stocks and tackling problems with illegal, unregulated and unreported fishing.
- A major change is the expansion of the country’s inshore exclusion zone, which will double in size, expanding from 6 to 12 nautical miles (11 to 22 kilometers) from shore.
- The law has been welcomed by artisanal fishers who have been struggling with declining pelagic fish stocks due to destructive fishing practices within the IEZ.
Indonesia’s Bajau fishers lament nickel mining’s marine pollution
For many members of the nomadic Bajau sea tribe on Indonesia’s Kabaena Island, growing up meant swimming and fishing in clear waters, just outside their homes built on stilts. However, in 2010, the water turned red, which the villagers blame on runoff from nearby nickel mining, Mongabay’s Hans Nicholas Jong reported in July. “Now, I […]
Brazil cities vow to stop buying threatened shark meat after Mongabay probe
Several government agencies in southern Brazil have said they will stop ordering angelshark meat for public meal programs, in response to a Mongabay investigation that highlighted the widespread consumption of the threatened species. Shark meat is often served in public schools, hospitals and other institutions due to its low cost and lack of bones. The […]
Brazil cities order endangered angelshark meat despite fishing ban
Government agencies in Brazil’s Rio Grande do Sul state launched public procurements for more than 200 metric tons of meat from endangered angelshark species between 2015 and 2025, a Mongabay investigation has revealed. The meat is served in public institutions, including schools. Fishing for angelsharks is prohibited in Brazil, but its trade is legal if […]
Philippine fishers struggle as LNG ‘superhighway’ cuts through biodiversity hotspot
Fishers in the Philippines’ Batangas Bay are struggling to make ends meet and feed their families as nearby coastal areas are developed into a natural gas import hub, Mongabay contributor Nick Aspinwall reported in July. Families that have been fishing in Batangas Bay for years have been asked by local officials to leave to make […]
Argentina’s elephant seals face 100-year recovery after avian flu devastation: Study
- At the end of 2023, an outbreak of avian flu devastated a colony of southern elephant seals in Argentina’s Valdés Peninsula.
- It may take a century for the population to return to the 18,000 breeding females it had in 2022, according to projections from a new study.
- Researchers estimate that 17,500 pups and an undetermined number of breeding adults died as a result of the outbreak, which also killed seabirds in the area.
- The previously healthy population is now vulnerable and faces an uncertain future.
Community efforts yield new marine protected area in the Philippines
The Philippines has officially designated a new marine protected area after an 18-year campaign by local communities, fisher associations, civil society organizations and government agencies, the Wildlife Conservation Society announced Aug. 13. The newly created Bitaug Marine Protected Area (MPA), which covers nearly 150 hectares (about 370 acres), is the largest MPA in Siquijor province […]
Belize project seeks out heat-resilient corals to protect its reefs
- An initiative called the Super Reefs program is setting out to identify the corals in Belize’s waters that have the highest chance of surviving warming waters amid climate change.
- Researchers with the program have discovered that corals that grow in the hottest areas are naturally more heat-resistant.
- Massive starlet coral (Siderastrea siderea) tends to be tolerant of warm water, whereas symmetrical brain coral (Pseudodiploria strigosa) is more sensitive.
- The team plans to use its findings, which are to be published by 2026, to inform the Belize government which coral communities in the country are best suited for protection and restoration.
There’s hope for sunflower sea stars, with their killer unmasked and reintroductions pending
- Since 2013, sea star wasting disease, worsened by warming oceans, has wiped out 99% of sunflower sea stars from Washington state to Mexico, collapsing kelp forest ecosystems.
- Researchers from the University of British Columbia and the Hakai Institute in Canada have pinpointed the bacterium Vibrio pectenicida as a key cause of the epidemic, confirming its lethal effects through lab experiments that replicated symptoms seen in the wild.
- A coalition of aquariums, nonprofits, Indigenous groups and government agencies has successfully bred sunflower sea stars in captivity for the first time, experimenting with fresh, frozen and cryopreserved sperm, and raising 72 juveniles in a Monterey facility with plans for controlled releases.
- Guided by the Pycnopodia Recovery Working Group and a 2024-2027 conservation plan, efforts have now turned to breeding, disease research, habitat protection, regulatory engagement and public outreach, with broad community support — including from fishers — for restoring this keystone predator.
Microbiomes may be corals’ secret weapon against climate change: Study
- Researchers compared how genetically similar populations of Pocillopora corals cope with heat stress in Panama’s Gulf of Panama and Gulf of Chiriquí, both on the Pacific coast.
- The team looked at the entire holobiont — the coral’s symbionts, microbiome and physiology — in addition to its genome and environment, finding that the holobiont may play an outsized role in boosting the corals’ ability to cope with heat extremes.
- The team found that corals exposed to upwelling in the Gulf of Panama were better able to withstand higher temperatures, thanks in part to their microbiomes.
- The work points to the importance of better understanding how symbiotic relationships and microbiomes interact with corals to increase their resilience.
Goldman Prize winner’s shift from engineer to activist in Tenerife, Canary Islands
Carlos Mallo Molina grew up inspired by his engineer father who led port construction projects across Spain. But while working on a highway project in Tenerife, one of Spain’s Canary Islands, Molina realized that a related plan to build a port in a marine protected area threatened the marine ecosystem that he had come to […]
Scientists identify the bacterium behind billions of sea star deaths
More than a decade ago, a mysterious illness killed billions of sea stars, particularly along the North American Pacific coast. The sea star wasting disease caused the stars to develop lesions, their arms to fall off and their bodies to disintegrate. Now, researchers in a recent study say they have zeroed in on the cause: […]
Brazil serves potentially contaminated shark meat to children in public schools
Brazil has ordered at least 5,600 metric tons of potentially contaminated shark meat to serve in schools and other public institutions since 2004, a Mongabay investigation has revealed. Shark meat tends to have higher concentrations of toxic heavy metals, as top predators accumulate contaminants like mercury from lower down in the food chain. The contaminants […]
Upmarket fish maw trade in Singapore & Malaysia includes endangered species: Study
- A new study using DNA barcoding reveals that Singapore and Malaysia’s fish maw markets include species listed as vulnerable, endangered or critically endangered, many of which are poorly monitored and sourced from unmanaged fisheries.
- Researchers identified 39 species from 503 dried maw samples, including critically endangered large yellow croakers and European eels, highlighting the scale and complexity of this high value, underregulated trade.
- Experts warn that the trade poses a growing threat to marine biodiversity, and with nearly 30% of samples coming from species lacking IUCN assessments, it makes sustainability difficult to evaluate.
- Researchers and conservationists urge governments to expand CITES protections, enhance species monitoring, educate stakeholders, and improve international coordination to prevent more marine species from being pushed toward extinction.
Former poachers guard Cabo Verde’s endangered sea turtles
- Conservation organizations are employing Cabo Verdeans, who formerly hunted endangered and threatened sea turtles, as rangers who now monitor and patrol beaches.
- From 2007-24, illegal catches of female turtles on one island plummeted from 1,253 to a mere 20, while nesting sites of vulnerable loggerhead turtles increased sevenfold, according to data by a conservation NGO.
- Locals traditionally consume turtle parts, use them in traditional medicine and now sell them in black markets; however, conservation activities, legislation and tourism have led to a reduction in turtle harvesting, researchers say.
- Conservationists say threats persist for sea turtles from at-sea captures, industrial fishing and plastic pollution, and that stricter laws and increased participation of the fisher community in conservation activities are needed.
UN meeting closes with no moratorium on deep-sea mining; groups lament
Civil groups expressed dismay as the 30th International Seabed Authority (ISA) session recently ended in Jamaica without a moratorium on deep-sea mining, a process of extracting minerals from the seafloor, which experts say can damage marine ecosystems. The ISA Council finished the second reading of the draft regulations for the commercial exploitation of deep-sea minerals. However, the […]
A sales-pitch pivot brings deep-sea mining closer to reality
Early on, Canada-based The Metals Company cast the rocks it seeks to mine from the deep seafloor as a crucial resource for electric vehicle batteries and other green technologies, positioning them as a solution to the accelerating climate crisis. However, in 2024, another message overtook the first in TMC’s communications, according to an analysis by […]
‘Nothing about us without us’: Inuit leader Sara Olsvig on ocean politics
- Sara Olsvig chairs the Inuit Circumpolar Council (ICC), which represents some 180,000 Inuit people across Alaska (in the United States), Canada, Kalaallit Nunaat (the Inuit name for Greenland) and Chukotka (in Russia).
- Climate change has reduced the extent of sea ice in the Arctic Ocean, opening up new shipping lanes and increasing interest in various forms of resource exploitation, including for oil, gas and minerals.
- The ICC is engaged in negotiations over the development and implementation of major international agreements on shipping, plastics, and the management of biodiversity in the high seas, all under United Nations bodies.
- In all of these forums, the ICC is pushing for input into international rules that affect Inuit livelihoods and the Arctic environment.
As gas giants move in, Philippine fishers fight for their seas and survival
- Fishing communities along the Philippines’ Verde Island Passage, a haven for marine biodiversity, say the development of a natural gas import hub in the area is leading to environmental degradation.
- Fishers say their catches have declined since a liquefied natural gas plant was built in the area a decade ago, and that they’re being turned away from remaining fishing grounds due to the ongoing construction of an LNG terminal.
- The Japan Bank for International Cooperation, a key funder of the LNG project, denies these claims, saying in a recent report that it didn’t find evidence that LNG development had led to environmental degradation or a reduction in income for local fishing communities.
Coral restoration after devasting Deepwater Horizon spill shows promise
When BP’s Deepwater Horizon oil rig exploded in the Gulf of Mexico in 2011, it led to the largest oil spill in U.S. history, severely damaging marine ecosystems. Part of the settlement money that BP agreed to pay has since been used for a deep-sea restoration project that has achieved significant milestones in spawning corals […]
Reversing damage to the world’s mangrove forests
Mangroves are an important lifeline for biodiversity, climate and coastal communities. Yet they are disappearing 3-5 times faster than total global forest losses, according to UNESCO. On July 26, celebrated as the International Day for the Conservation of the Mangrove Ecosystem, we present recent stories by Mongabay’s journalists on emerging threats to these critical ecosystems […]
Saving polar bears and beluga whales: Interview with Alysa McCall
- Beluga Cam is a long-running initiative that aims to document the migration of almost 57,000 beluga whales through Hudson Bay in Canada.
- The project is run by the nonprofit Polar Bears International in a bid to collect more data about beluga migration as well as to create more awareness about the species.
- The initiative got an upgrade this year with a new boat that houses the cameras and other equipment deployed for the work.
- As the Arctic rapidly loses sea ice, species such as beluga whales and polar bears bear the brunt in terms of losing access to food and their habitats.
Probiotics slow a deadly disease in Florida coral, study finds
A bacterial probiotic helped slow the spread of a deadly disease on great star coral, one of the largest and most resistant corals still surviving in the Florida Reef Tract, a 560-kilometer (350-mile) barrier reef off the coast of Florida, U.S., a recent study found. The treatment involved sealing live great star coral (Montaststraea cavernosa) […]
Darkest-ever dwarfgoby fish gets named after Darth Vader
From the volcanic fjords of Tufi in Papua New Guinea, researchers have described a new-to-science species of a coral reef fish called a dwarfgoby with an unusual purplish-black color. The tiny fish is the “darkest of all described dwarfgobies,” the researchers say in the study, naming it Eviota vader after the Star Wars villain Darth […]
Evolution in overdrive as Baltic cod shrink due to fishing pressure, study shows
- The eastern Baltic cod has shrunk dramatically in size in recent decades due to rapid evolution — changes at the genetic level — caused by decades of intensive fishing, a new study says.
- Eastern Baltic cod, which are a distinct subpopulation of Atlantic cod (Gadus morhua), lost nearly half of their length and four-fifths of their weight from 1996 until 2019.
- It’s one of the first studies to show that a marine species has evolved in response to fishing pressure.
- An expert said the shrinking of the cod was “alarming,” and called on fisheries managers to work to protect fish biomass and size, given this new evidence of fisheries-induced evolution.
Conservationists raise sharks to restore reefs in waters around Thailand
- A new rewilding program aims to boost the local population of bamboo sharks in the waters of Khao Lak, Thailand.
- The species, classified as near threatened on the IUCN Red List, used to be abundant in the area, but has declined as a result of overfishing and habitat destruction.
- Since the project launched in 2018, with the support of luxury resorts in the area, it has released 200 bamboo sharks into the wild.
- A separate program that started in May 2025, is breeding leopard sharks, which are listed as endangered. They will be released in the waters off Phuket, and eventually the Gulf of Thailand.
Global tracking study reveals marine megafauna hotspots lie largely unprotected
- A global study tracking nearly 13,000 marine animals representing 111 species reveals they spend 80% of their time in just 63% of their range, yet only about 5% of these high-use ocean areas are currently protected.
- The research identifies Important Marine Megafauna Areas (IMMegAs) as ecological hotspots that span national waters and the high seas, where governance and protection are often lacking.
- Findings show that the global target of protecting 30% of the ocean by 2030 is insufficient to safeguard migratory species unless paired with additional mitigation measures outside protected areas, like bycatch reduction and ship speed regulations.
- Researchers call for stronger international coordination and more dynamic, movement-informed conservation strategies to effectively protect wide-ranging ocean wildlife.
Canada’s Pacific Coast hit hard by trawling, with limited transparency: Report
- Trawling vessels pursuing fish are damaging marine ecosystems in Canada’s West Coast waters and could be operating illegally in some cases, and yet they work with insufficient transparency, a new NGO report says.
- Nine large trawlers have together trawled swaths of the ocean collectively larger than the size of Ireland since 2009; they have likely trawled in prohibited zones at least 47 times and have disrupted Chinook salmon (Oncorhynchus tshawytscha) migratory routes, which are foraging areas for an endangered population of killer whales (Orcinus orca), the report says.
- A trawling industry group dismissed the NGO’s findings, saying they lacked context and the fishery was very well regulated.
- A Canadian regulatory agency said the fishery was well managed, with strict monitoring and enforcement of rules.
Coral once feared extinct rediscovered in the Galápagos after 25 years
Wellington’s solitary coral, a species thought to be extinct for more than two decades, was rediscovered in 2024 near Tagus Cove in Ecuador’s Galápagos Islands, according to a recent study. Over multiple dives in 2024, scientists from the Charles Darwin Foundation, the Galápagos National Park Directorate, and the California Academy of Sciences spotted more than […]
Restoration, protection aim to save Belize’s coral reef from extreme heat and disease
- Charles Darwin described the Belize Barrier Reef, a complex system of coral reefs, atolls and cayes spanning 300 kilometers (186 miles) and cradling the nation’s coast, as “the most remarkable reef in the West Indies.”
- Today, unprecedented coral bleaching, a relatively new illness called stony coral tissue loss disease and other threats to corals are negatively impacting reef health across Belize, according to local organizations and a recent reef health assessment.
- The government is looking to identify 20% of the reef for full protection, part of an effort to roughly triple coral reef protection from 7% to 20%.
- Meanwhile nonprofit and scientific groups are doubling down on restoration and monitoring efforts.
Will temperate seas act as refuge for coral reefs? Not in time, study says
- Some scientists have held out hope that, given the threats tropical corals face from climate change, they could improve their viability by expanding their range — by finding refuge in more temperate seas.
- However, a new study found that coral reef decline will far outpace expansion into temperate waters. Most of the damage to corals will be done in the next 40 to 80 years, but expansion will take centuries.
- The severity of coral loss will depend on levels of greenhouse gas emissions in coming decades.
Listings of Indonesian islands renew fears of privatization for coastal communities
- Listings of Indonesian islands on a foreign real estate site have sparked concerns about privatization, prompting the government to block the site domestically and clarify that islands cannot be sold to foreign entities under national law.
- Officials said the listings were likely aimed at attracting investment, not outright sales, but critics warn such practices enable control over island and offshore areas, often displacing fishers and triggering land conflicts.
- A 2021 regulation allows foreign investors to lease small islands for up to $1,900 per km² per year, and a government portal launched in 2024 streamlines permits for islands smaller than 2,000 km², accelerating commercialization.
- Watchdogs say 254 small islands have already been privatized, often without adequate oversight, and warn that unchecked investment could jeopardize fisher livelihoods and national sovereignty over maritime territories.
Seismic noise from oil companies threatens Amazon River Mouth marine life
- As oil companies push for drilling on the Amazon coast, an underwater war silences the ocean’s most vocal creatures.
- Petrobras has been conducting surveys since 2013 using seismic airgun blasts that can destabilize marine ecosystems by interrupting essential communication in the marine food chain.
- Blasts fired every 10 seconds, reaching more than 230 decibels, disorient and kill cetaceans and other marine life that rely on sound.
- The Amazon region is emerging as a new oil frontier, driven by recent discoveries and political will to expand hydrocarbon exploration despite environmental and social risks in an area known for strong sea currents and diverse wildlife.
Scientists trial chlorine as gentler alternative to antibiotics to fight coral disease
- Stony coral tissue loss disease (also known as SCTLD) spreads rapidly, causing high mortality rates among reef-building corals in the Caribbean.
- The most effective treatment known to date is the application of an antibiotic paste, but this poses a major health concern due to the development of antimicrobial resistance, which in turn exposes sea life to threats over the long term.
- Scientists have found that applying chlorine to affected reefs, delivered in a cocoa butter paste, can be both effective and more environmentally friendly, though it’s less effective than antibiotic treatment.
- Tackling water pollution and maintaining the balance of ecosystems, which are now severely disrupted in many parts of the world, would be the best strategy for safeguarding corals against disease, experts say.
A Kenya marine biodiversity credit program restores mangroves — and livelihoods
- The decline of mangroves significantly weakens Kenya’s coastal protection, leaving shorelines susceptible to erosion, storm surges and rising sea levels, disrupting marine ecosystems, depleting fish stocks, leading to reduced biodiversity — and lost livelihoods for locals.
- A U.S.-based organization called Seatrees is working with the local Community Based Environmental Conservation (COBEC) and residents of Marereni to restore and protect coastal and marine ecosystems as a natural solution to climate change.
- Since 2024, Seatrees has offered donors the option of buying $3 “biodiversity blocks,” each of which represents a single tangible conservation action: planting one mangrove tree on site in Marereni.
- The work goes beyond just planting trees, as community members turn mangrove restoration into a livelihood by establishing and maintaining nurseries — and, in some cases, starting side businesses with the income.
With coral-rich Churna Island now an MPA, Pakistan takes baby steps on ocean protection
- In September 2024, Churna Island and the sea surrounding it became Pakistan’s second designated marine protected area, home to a variety of corals and serving as a nursery for fish.
- It followed the 2017 designation of the country’s very first MPA around Astola Island, a haven for coral, birds and sea turtles to the east.
- While Pakistan’s first two MPAs are small and have yet to be fully implemented, they represent baby steps in the country’s nascent effort to protect its marine environment.
- The country still has a long way to go to protect 30% of its ocean by 2030, as mandated by the United Nations Convention on Biological Diversity.
Countries seek urgent CITES protection of more than 70 sharks and rays
Several proposals seeking greater protection of more than 70 shark and ray species from commercial trade were raised this week for deliberation at the 20th meeting of CITES, the global convention on the wildlife trade, to be held in November. “The world is at a tipping point for sharks and rays,” Luke Warwick, director of […]
First-ever assessment highlights threats to Atlantic cold-water corals
- A new study published in the journal Marine Biodiversity delivers the first global IUCN Red List assessments for 22 cold-water coral species in the Northeast Atlantic.
- More than 30% of the species are at risk of extinction due to bottom-contact fishing, habitat destruction and climate change, with white coral (Desmophyllum pertusum) listed as globally vulnerable.
- Experts say the findings highlight gaps in conservation, especially for deep-sea species often excluded from monitoring and protection efforts.
- The study’s release comes at a key moment, as international talks continue under the Beyond National Jurisdiction Treaty to improve high seas biodiversity protections.
Vanishing giants: The Indian Ocean’s biggest fish need saving (commentary)
- New research confirms the decline of predatory and large-bodied fishes in the western Indian Ocean due to overfishing, unregulated fishing practices and climate change.
- The lead author of a new paper published in the journal Conservation Biology argues that these fish must be protected to ensure healthier reefs, marine ecosystems and adjacent human communities.
- “This issue isn’t just about protecting fish, but also maintaining a healthy ecosystem, supporting a crucial food source for millions and sustaining the livelihoods of many coastal communities. If we act now, we can still turn the tide,” the author writes.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Orcas discovered making tools from seaweed to ‘massage’ each other
- Southern resident killer whales in the Salish Sea off the U.S. state of Washington have been observed making tools from bull kelp stalks, biting off pieces and using them to massage each other in a behavior scientists call “allokelping.”
- This represents the first documented evidence of toolmaking by marine mammals, with whales of all ages participating in coordinated grooming sessions that likely serve both hygiene and social bonding purposes.
- The behavior helps whales exfoliate dead skin and may provide antibacterial benefits, though the endangered population of only 73 individuals faces multiple threats including declining food sources and habitat destruction.
- The bull kelp forests where whales source their grooming tools are also threatened by warming oceans, making conservation of both the whale population and their kelp habitat crucial for preserving this unique cultural behavior.
The Caribbean’s hardiest corals (cartoon)
Despite the Caribbean Sea witnessing some of the worst episodes of mass coral bleaching over the last year, a reef in Honduras’ Tela Bay, nicknamed Cocalito, has withstood pressures from climate change and pollution, surprising and impressing marine biologists. A Honduran reef stumps conservationists with its unlikely resilience
Indigenous divers on Chile’s island restore seabed to protect seafood sources
- Intensive harvesting of the mollusk known as “loco” and salmon farming are damaging the seabed and reducing the biodiversity of the Guaitecas Archipelago, in northern Chilean Patagonia.
- To restore it, divers are transporting shellfish and rocks that serve as food and shelter for the loco and other commercially valuable species.
- The Pu Wapi Indigenous community is also working to enhance marine protection by requesting a Coastal Marine Area for Indigenous peoples.
Endangered humphead wrasse gets a lifeline from facial recognition tech
- The endangered humphead wrasse, a reef fish that swims the seas from Africa to the South Pacific, is in high demand in mainland China and Hong Kong as a luxury culinary delicacy.
- Despite harvest limits, trading regulations and fishing bans, it’s overfished and illegally traded.
- Researchers in Hong Kong have developed a new AI-based photo identification smartphone app, Saving Face, to help enforcement officers identify individual fish using their unique facial patterns with just a photo.
- Researchers say they hope the app can address both illegal laundering of humphead wrasse and mislabeling of wild-caught fish as captive-bred; its developers say it can be tweaked to identify other species that have unique markings.
Seaweed farming as an eco-friendly alternative for Tanzanian fishing communities
Climate change, overfishing and habitat loss have caused a sharp decline in fish stocks around Pemba Island, off the coast of Tanzania. To find a new income from the sea, women from Pemba are turning to sustainable seaweed farming, Mongabay’s video team reported in May. Seaweed farming was introduced to the island in 1989. It […]
EU remains major wildlife trafficking hub, report finds
- In 2023, EU authorities recorded nearly 5,200 wildlife trafficking seizures, mostly involving endangered European eels, timber, and medicinal plants, reinforcing the bloc’s status as a key global trade hub, a new report notes.
- More than 1 million CITES-listed specimens — including more than 600,000 live animals and 10,000 live plants — were intercepted across EU countries, according to the TRAFFIC report.
- Authorities documented 88 species seized for the first time, including poison frogs and tarantula look-alikes, while 28% of fauna seizures were linked to the exotic pet trade.
- The EU’s response includes updated legislation and participation in globally coordinated enforcement actions such as Operation Thunder.
Glass eel smuggling booms despite bans, leaving species on the brink
- The illegal trafficking of critically endangered European glass eels continues to thrive, generating up to 3 billion euros ($3.5 billion) in peak years, with more than 1 million live eels seized in 2023 alone — mostly en route to East Asian aquaculture farms where they’re raised to maturity to produce the delicacy unagi.
- Europol describes the trade as a highly organized transnational crime involving smuggling, document fraud and money laundering, with sophisticated players using scientific expertise to keep smuggled eels alive during transit.
- Conservationists warn that removing juvenile eels from the wild disrupts their life cycle and ecosystem functions, worsening the species’ 90% population decline since the 1970s and threatening biodiversity in connected marine and freshwater systems.
- Experts call for stronger enforcement, improved monitoring, public awareness and habitat restoration to combat the trade and avert further ecological damage.
Major coral loss in Vietnam’s first marine protected area: Study
- Vietnam’s first marine protected area (MPA), Nha Trang Bay, has lost nearly 200 hectares (494 acres) of coral reef since it was established in 2002, according to a new study.
- Major drivers of the coral decline include coastal development, warming sea temperatures and devastating crown-of-thorns starfish (Acanthaster planci) outbreaks worsened by overfishing and nutrient pollution.
- The study calls for stronger conservation measures inside Nha Trang Bay and other MPAs, including pollution control, active reef restoration and inclusive community governance.
- Experts say Nha Trang Bay offers lessons for other MPAs in Southeast Asia facing similar threats.
Tanzania’s Mafia Island eyes sea cucumber farming to prevent extinction
Residents of Mafia Island in Tanzania don’t really eat sea cucumber; they call it jongoo bahari, or “ocean millipede” in Swahili. But sea cucumbers are a prized delicacy in East Asia, where demand has fueled a black market for the spiny sea creatures, Mongabay’s Ashoka Mukpo reported in May. A kilogram of dried sea cucumbers […]
UN Ocean Conference makes progress on protecting marine waters
- The United Nations Ocean Conference, held June 9-13 in Nice, France, saw some progress on better protecting the hundreds of thousands of species that live in marine waters and the communities that depend on the sea for work or sustenance.
- New countries committed to the high seas treaty, a moratorium on deep-sea mining and the World Trade Organization Agreement on Fisheries Subsidies, while a huge group of nations pushed for a strong global plastics treaty.
- Several countries also moved to create marine protected areas (MPAs) and reserves, or strengthen existing ones, including the announcement of the world’s largest MPA in French Polynesia.
- A wide range of groups announced other marine conservation initiatives.
The ocean is in crisis. A new effort is betting on coastal communities to save it.
The ocean has long been treated as the world’s forgotten frontier — out of sight, out of mind, and dangerously overused. Yet efforts to reverse decades of neglect are gaining momentum. Late April saw the launch of Revive Our Ocean, a new initiative helping coastal communities create marine protected areas (MPAs) to restore marine life […]
When heat waves hit, clownfish shrink to survive, study finds
- Clown anemonefish (Amphiprion percula) have a surprising survival strategy: they shrink in length — not just lose weight — to survive marine heat waves and avoid social conflicts, boosting their heat wave survival odds by up to 78%, a new study finds.
- Researchers tracked 67 breeding pairs of clownfish in Papua New Guinea through a severe marine heat wave, measuring fish size repeatedly and finding that synchronized shrinking between mates helps maintain social hierarchies and improves survival chances.
- The study raises bigger questions about whether this shrink-to-survive mechanism is widespread among fish, potentially explaining global trends of shrinking fish sizes amid climate change, and calls for controlled lab experiments to uncover the physiological causes.
On its 50th anniversary, ‘Jaws’ continues to provoke shark conservationists
- This month marks the 50th anniversary of the release of Jaws, a Hollywood blockbuster that depicts a series of attacks by a massive great white shark — a “man-eater” — in a fictional New England beach town.
- Shark populations have plummeted since the film was released, and experts agree that Jaws misrepresented the nature of sharks and likely had a net negative impact, however small, on their population sizes and conservation status.
- Most of the experts reached for this article said the film had spurred interest in sharks, some of which was channeled in positive directions. In fact, some people who worked on the film later advocated for shark conservation.
Pelicans recover, but dolphins and other species struggle 15 years after BP oil spill
Oil-soaked pelicans struggling to fly came to symbolize the catastrophic impacts of the 2010 BP Deepwater Horizon oil spill on the inhabitants of the Gulf of Mexico. Fifteen years later, brown pelicans in the region have seen some recovery, but other wildlife species haven’t been as fortunate, Mongabay’s Liz Kimbrough reported in April. Researchers estimate […]
Another way to check the health of a coral reef: Study the microbes in the seawater
- An increasingly common way to keep tabs on coral reef health is by measuring microorganisms in the local seawater.
- Microbial-based coral reef monitoring is excellent at detecting nutrient and health changes on a reef and can draw attention to environmental disturbances; microbes are particularly good at sending such signals because they react quickly to pollution.
- This type of monitoring can help provide a fuller, faster and lower-cost picture of reef health than visual surveys alone, the most common current method.
- Two marine scientists explain the “why” and the “how” of microbial-based reef monitoring in a recent paper.
Endangered angelshark decline may be overestimated, study shows
Previous reports of drastic declines in the elusive angelshark in Wales, U.K., may be overestimated and may be partly explained by changes in fishing trends throughout the past decades, according to a recent study. The angelshark (Squatina squatina), listed as critically endangered on the IUCN Red List in 2006, is a bottom-dwelling shark that can […]
PNG PM Marape rejects deep-sea mining even as provincial authorities try to revive project
- Papua New Guinea’s prime minister, James Marape, opposes deep-sea mining in Papua New Guinea, according to comments made at the United Nations Ocean Conference and directly to Mongabay.
- Contradicting his position, however, is the governor of PNG’s New Ireland province, Walter Schnaubelt, who has vocally supported mining the Solwara 1 project and reportedly met with company and national government officials about extracting copper and gold from the seabed.
- From early on, the project has faced opposition from coastal communities living near the Solwara 1 site who are concerned about the impacts of mining on seafloor ecosystems and the fisheries on which they rely. In February 2025, they formally requested a forum to voice their grievances and hear responses from the companies involved, but have yet to receive a response, they say.
- The company originally awarded the mining license went bankrupt in 2019, and other companies have since tried to resuscitate the project, but without consulting communities or informing them of the risks associated with deep-sea mining, according to the communities. In July 2024, the companies carried out trial mining; government officials say they were unaware of the ship’s presence, but internal documents and emails suggest that key leaders were likely aware that trial mining was planned as early as 2022.
Microplastics and melting ice reveal deepening crisis in Antarctica
- An expedition by more than 50 researchers from seven countries has documented the gradual degradation of Antarctica: microplastics in the water, melting ice, and declining salinity in the Southern Ocean.
- The team found microplastics in both glacial ice and seawater.
- They also noted that atmospheric “rivers” are sending ash-laden air from Amazon forest fires to Antarctica, hastening the melting of snow and ice there.
- The accelerated melting means more freshwater is rushing into the Southern Ocean, reducing the salinity level and affecting the phytoplankton that form the basis of the marine food chain.
No respite for Indonesia’s Raja Ampat as nickel companies sue to revive mines
- Three companies are suing the Indonesian government to be allowed to mine for nickel in the Raja Ampat archipelago, a marine biodiversity hotspot, Greenpeace has revealed.
- The finding comes after the government’s recent revocation of four other mining permits in the area, following a public outcry over environmental damage and potential zoning violations.
- At the same time, the government is also encouraging the development of a nickel processing plant nearby, raising concerns this could fuel pressure to reopen canceled mines to supply the smelter.
- Greenpeace has called for a total mining ban across Raja Ampat and for an end to the smelter project to ensure the conservation of the archipelago’s unique ecosystems and biodiversity.
Death of tagged white shark on bather protection gear in South Africa sparks debate
The recent killing of a juvenile great white shark on a drum line — a shark control method consisting of baited hooks attached to floating drums — off the east coast of South Africa has sparked a debate over the measures employed to protect swimmers at the expense of the threatened species. The 2.2-meter (7.2-foot) […]
Stars & lighthouses: Marine conservation that blends Pacific Islander wisdom and Western knowledge (commentary)
- The U.N. Ocean Conference this week is tackling a range of issues, such as how to conserve and sustainably use the oceans and marine resources: a new op-ed argues that the strength of Indigenous islander conservation practices lies in their flexibility and adaptability, while Western conservation efforts bring clear, formal, and intentional goals — and that blending the two can return inspiring results.
- “Conservation is not just about the number of lighthouses we build — about visible policies and formal designations — but we must also name and recognize the stars that have guided us all along; the quiet, steadfast traditions that have protected our oceans for thousands of years,” the author writes.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Indonesia halts most nickel mining in Raja Ampat, but allows one controversial permit
- Indonesia has revoked four out of five nickel mining permits in Raja Ampat after public pressure and findings of environmental damage in the ecologically sensitive archipelago, home to some of the world’s richest marine biodiversity.
- However, the government retained the permit for PT Gag Nikel, citing its location outside a UNESCO-designated geopark, lack of visible pollution, ongoing land rehabilitation, and the high economic value of its nickel deposits.
- Environmental groups have criticized the decision, pointing to legal bans on mining on small islands and warning of threats to marine life such as manta rays and coral reefs from barge traffic and industrial activity.
- The case reflects broader concerns about Indonesia’s nickel rush, with nearly 200 mining concessions on small islands nationwide, raising alarms over environmental destruction and the prioritization of industry over legal and ecological safeguards.
Pushback grows against nickel mining in Indonesian marine paradise of Raja Ampat
- The Indonesian government has suspended nickel mining in the Raja Ampat archipelago following public outcry and investigations that revealed environmental violations, including illegal mining on small islands and deforestation by several companies.
- Raja Ampat, one of the world’s most biodiverse marine regions, is threatened by sedimentation, pollution and habitat destruction linked to mining, endangering coral reefs, mangroves and Indigenous communities.
- Despite government claims that operations on one of the islands, Gag, are environmentally compliant, critics say inspections are superficial and driven by political and economic agendas, ignoring broader regional damage.
- Environmental groups warn mining could resume quietly once the outrage fades, and urge the government to establish no-go zones to protect Raja Ampat, challenging rhetoric that frames local resistance as foreign interference.
One-two punch for mangroves as seas rise and cyclones intensify
- More than half of mangroves worldwide may face high or severe risk by 2100 due to increased tropical cyclones and sea level rise, with experts predicting Southeast Asia to be hardest hit under all emissions scenarios.
- A new risk index combines multiple climate stressors — cyclones and sea level rise — with ecosystem service value, providing a novel, globally scalable tool for risk assessment and conservation planning.
- Mangrove loss has major human and economic costs, jeopardizing flood protection worth $65 billion annually and threatening 775 million people dependent on coastal ecosystems.
- Urgent, dynamic conservation and emissions cuts are essential; restoring degraded areas, enabling inland migration, and reducing emissions could significantly reduce risk and buy adaptation time.
World Oceans Day: Scientists find new clues about frontiers of ocean life
In 2008, the United Nations recognized June 8 as World Oceans Day to spotlight the rising vulnerabilities facing the oceans that cover more than 70% of Earth’s surface. Seventeen years later, average ocean temperatures have never been higher. Heat stress has hit 84% of the world’s coral reefs. In places as far as Antarctica, whales […]
New method can detect nearly every coral genus in Japan from water samples
- Environmental DNA (eDNA) coral research involves analyzing water samples to identify corals based on the DNA that they secrete into the water, largely via their mucus.
- eDNA research on corals can help scientists understand the changes wrought by global warming and marine pollution by providing coral identification data faster and in some cases more accurately than visual surveys by scientists.
- A team of marine scientists based in Japan, an archipelagic nation with a high level of coral biodiversity, has used an eDNA method to develop a system that can detect nearly all of the country’s 85 reef-building coral genera; no other research group in the world has achieved the same level of detection accuracy and coverage for corals using eDNA.
- They released their findings in a study published on May 22.
Pay-to-release program reduces shark deaths, but backfires in some cases
- A pay-to-release program for threatened sharks and rays significantly reduced bycatch in Indonesia, with 71% of wedgefish and 4% of hammerheads released alive; but it also led some fishers to intentionally catch these species to claim incentives.
- Unequal payments across regions (ranging from $1 to $135 per fish) and the absence of national protective laws have complicated conservation efforts in key fishing areas like East Lombok and Aceh Jaya.
- A rigorous randomized controlled trial revealed unintended consequences: wedgefish mortality dropped by just 25%, while hammerhead mortality rose by 44% due to incentive-driven targeting.
- Local NGO KUL, which runs the program, has revised it to limit payouts and promote gear swaps, aiming to better align conservation outcomes with fisher livelihoods in the world’s top shark- and ray-catching nation.
Cargo ship carrying ‘hazardous material’ capsizes off India coast
On the morning of May 25, a Liberian-flagged cargo ship, MSC ELSA 3, carrying roughly 640 declared containers, sank off the coast of Kerala state in southern India. Indian authorities rescued all 24 crew on board, but most of the containers remain untraced and their contents unknown, raising environmental concerns, reports contributor Navya PK for […]
US pioneers restoration of deep water corals damaged by country’s worst oil spill
- Scientists are conducting a pioneering large-scale deep-sea coral restoration in the Gulf of Mexico following the 2010 Deepwater Horizon oil spill, which damaged 1,994 square kilometers (770 square miles) of seafloor habitat.
- Underwater robots and Navy divers using specialized gear to work at depths up to 100 meters (328 feet) plant coral fragments on the ocean floor, while labs in Texas, South Carolina and Florida grow corals in tanks for future transplantation.
- The novel eight-year, multi-million-dollar project has achieved milestones including high deepwater coral survival rates at sea and the first successful spawning of deep-sea corals in captivity, which produced more than 1,000 baby corals.
- The restoration faces ongoing threats from climate change, commercial fishing, agricultural runoff and potential future oil spills, with nearly 1,000 spills occurring in U.S. waters in 2021 and 2022 alone.
Only a tiny % of the deep seafloor has ever been visually observed: Study
- Just 0.001% of the deep seafloor has ever been captured by photo or video images, a new study finds.
- That which has been captured is “biased” and potentially unrepresentative: 65% of observations have been in the waters of the United States, Japan or New Zealand, according to the study.
- Experts told Mongabay that policymakers at a wide range of international institutions should bear the study’s findings in mind, including those governing high seas fisheries, deep-sea mining, and the use of marine carbon dioxide sequestration systems.
Guinea-Bissau’s grassroots efforts offer a blueprint for global mangrove restoration (commentary)
- Guinea-Bissau’s mangroves have declined by nearly a third over the past 80 years, but the country still has the largest mangrove area as a proportion of its total area in the world.
- A grassroots revolution is underway, spearheaded by national organizations, international partners and local communities to restore the country’s mangrove landscapes.
- Called Ecological Mangrove Restoration, this method focuses on optimizing conditions for the mangroves to restore naturally, as well as collaborating with communities to ensure sustainability and resilience by fostering ownership of the project while leveraging local knowledge and resources.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
New map highlights complex web of marine migrations
- Scientists have launched a new database on marine migratory patterns to address gaps in the knowledge of policymakers and conservationists.
- The Migratory Connectivity in the Ocean (MiCO) database pulled data from 1,300 existing studies in the scientific literature to describe the migratory patterns of 109 mammal, bird and fish species.
- The database highlights the interconnected nature of marine migrations, and underscores the need for cross-border collaboration in conservation efforts.
Tuna fishing devices drift through a third of oceans, harming corals, coasts: Study
- Drifting fish aggregating devices (dFADs) are floating rafts with underwater netting used by fishing vessels to attract tuna.
- A recent study estimated that between 2007 and 2021, 1.41 million dFADs drifted through 37% of the world’s oceans, stranding in 104 maritime jurisdictions and often polluting sensitive marine habitats.
- Strandings were most frequent in the Indian and Pacific oceans, with the Seychelles, Somalia and French Polynesia accounting for 43% of cases; ecosystem damage and cleanup costs fall on local communities.
Brazil advances with plan to drill oil at the mouth of the Amazon River
Brazil’s environmental agency, IBAMA, approved a key step that could soon allow Petrobras, the nation’s state oil company, to begin offshore oil drilling near the mouth of the Amazon River. In a May 19 decision, the agency greenlit a concept for an emergency response plan by Petrobras (PBR) to protect marine animals in case of […]
The blobby little sea squirt that stowed away across the Pacific to California
- In 2023, scientists found a nonnative species of marine invertebrate in a private marina near Los Angeles, California.
- The arrival of this new member of California’s marine fauna highlights the massive, largely uncontrolled movement of marine species via ships that travel the world.
- Concerned about potential ecological and economic impacts, the state of California has tried to curb the movement of nonnative marine species through regulations of large ships and commercial ports, but the regulations don’t apply to smaller vessels.
- Beginning in 2025, California will have to comply with less-stringent federal biofouling and ballast water regulations.
Climate change now threatens thousands of species on Earth
- A new analysis of more than 70,000 wild animal species reveals that climate change now threatens thousands of to the planet’s wildlife, along with overexploitation and habitat degradation.
- The study found that nearly 5% of the assessed species are threatened by climate change, with ocean invertebrates being particularly vulnerable to climate change-related threats, such as extreme temperatures, floods, droughts, storms and ocean acidification.
- The study warns that some animal populations, both on land and at sea, have already begun to collapse due to climate change-related events, and it’s now necessary to monitor mass die-offs to understand the impacts of climate change and predict future impacts.
Brazil’s offshore wind farms could sacrifice small-scale fishing in Ceará
- In Brazil, the expansion of coastal wind energy has already disrupted traditional communities’ way of life; now, the concern is that these impacts will be repeated at sea, after a bill regulating offshore wind energy was signed into law in January.
- In the state of Ceará, 26 projects overlap with small fishing zones used by hundreds of traditional communities, including maroon, Indigenous, fisher and extractivist groups that have had a direct relationship with the sea for generations.
- The northeast region seeks to expand offshore wind energy, as it is vital to the production of green hydrogen aimed for European markets.
How a road engineer became an ocean activist & won the world’s top environmental prize
Carlos Mallo Molina has been awarded the 2025 Goldman Environmental Prize for protecting the marine biodiversity of Tenerife, the most populated of the Canary Islands. On this episode of Mongabay’s podcast, Molina explains what led him to quit his job as a civil engineer on a road project impacting the Teno-Rasca marine protected area (MPA) […]
The Great Whale Conveyor Belt (cartoon)
While migrating between their feeding and mating grounds, baleen whales transport massive amounts of nutrients across latitudes. This phenomenon is termed “The Great Whale Conveyor Belt”, prompting scientists to argue that whale conservation can help improve the resilience of global marine ecosystems.
Study offers new tool to compare environmental impacts of crops
In a recently published study, researchers offer a new tool to compare how different crops affect the environment in different regions. Named PLANTdex, the tool assesses the environmental impact of a crop by considering five key indicators — greenhouse gas emissions, freshwater biodiversity loss, marine biodiversity loss, land biodiversity loss, and water resource depletion — […]
Cruise ships and intensified tourism in Mexico threaten whale shark habitat
- In Baja California Sur, Mexico, a private tourism company, Aquamayan Adventures, and the port administration have reached an agreement that allows mega cruise ships to enter Bahía de La Paz. Environmental organizations are urging the government to cancel the agreement.
- The agreement allows at least 150,000 annual visitors, a figure four times that of cruise passengers received in 2023 and equivalent to 60% of the resident population of the city of La Paz, the state’s capital.
- In addition, the company intends to build a large tourism and commercial complex that could have serious environmental, social and economic impacts on the city and surrounding area, according to organizations concerned about the project.
- Bahía de La Paz is a critical location for marine species like the whale shark, which was affected by the presence of a high number of mega cruise ships in 2020, and which could now be the victim of collisions with vessels arriving to port.
Angling for answers, this saltwater fishing group boosts research for better conservation
- Though anglers aren’t generally thought of as environmentalists, many people who fish are conservation minded, whether because it’s an outdoor pursuit, or because they wish to ensure future harvests.
- Whatever their reasons, there aren’t many groups that help anglers advocate for sustainable fishing regulations based on solid science, nor ones that also work to generate new data that helps them argue for better conservation.
- “Until we came along, there was no voice for those saltwater anglers who cared about conservation, but didn’t have enough time to put into it to really understand it,” says American Saltwater Guides Association vice president Tony Friedrich.
- His team not only helps its members articulate the need for conservation and regulation, they actively participate in developing data that helps managers set better limits, through projects like their GotOne App.
Mozambique announces petrochemical city on sensitive Inhambane seascape
In April this year, Mozambican President Daniel Chapo announced the launch of a national petrochemical city project in Mavanza village in Vilankulo district of Inhambane province. The coastline of Inhambane province, or the Inhambane seascape, is a globally important area that conservation groups have previously urged the government of Mozambique to protect for its threatened […]
Annual ocean conference nets $9.1 billion for initiatives, despite US absence
- The 10th annual Our Ocean Conference took place in Busan, South Korea, April 28-30.
- Delegates announced 277 new commitments totaling around $9.1 billion for initiatives across the conference’s six main target areas: the ocean-climate nexus, marine pollution, MPAs, sustainable fisheries, the blue economy and maritime security.
- Notable commitments at this year’s conference included Panama moving to increase fisheries transparency, $6 billion in funding for blue economy initiatives and more pledges to ratify the high seas treaty.
- This marked the first OOC without delegates or financial pledges from the U.S. government, which initiated the conference in 2014.
A Honduran reef stumps conservationists with its unlikely resilience
- The latest “report card” on Mesoamerica’s coral reefs made clear that 2024’s hottest-ever recorded summer temperatures devastated some of the region’s most iconic reef sites.
- But against all odds, a reef in Tela Bay on Honduras’s Caribbean coast, composed largely of critically endangered elkhorn corals (Acorpora palmata), displays remarkable health.
- Known affectionately as “Cocalito,” this patch of coral is raising urgent questions about what qualities endow coral with heat resilience and whether they can be harnessed to help save other reefs.
Tuna talks bring wins for Indian Ocean sharks, but more needed, experts say
- At the most recent round of Indian Ocean tuna talks, countries adopted measures to curb shark finning, expand the scope of bans that prohibit fishers from holding on to sharks caught as bycatch and restrict the use of harmful fishing gear.
- Conservationists said the measures will reduce the unwanted capture, or bycatch, of sharks that get hauled in by fishers targeting tuna and tuna-like species.
- A complete retention ban is already in place for oceanic whitetip sharks and thresher sharks in the Indian Ocean, and it will most likely be extended to whale sharks.
- A partial ban on retaining shortfin mako, an overfished endangered species, will take effect in 2026. However, scientists fear the measures to save the Indian Ocean shortfin mako may not be enough.
Blue whale decline in Sri Lanka tied to climate and human activity
- A resident population of blue whales has for many years lived in the coastal waters of Sri Lanka, but in recent years sightings of the animals have declined rapidly.
- With multiple pressures on these massive creatures — from ship traffic on one of the world’s busiest shipping lanes, to disturbance from whale tourism, pollution and surface sea temperature rise and climate change — there are several possible factors for the disappearance of the whales.
- Sri Lanka’s leading marine researchers agree that increasing sea temperatures in the North Indian Ocean, warming at the fastest rate of any of the world’s oceans, have likely pushed the whales to new waters.
The Metals Company applied to the U.S. for a deep-sea mining license
- The Metals Company (TMC) has submitted its first application to commercially exploit seabed minerals in international waters, along with applications for two exploration licenses, under the U.S. regulatory authority.
- The contentious move follows a recent executive order from the Trump administration that directed the U.S. government to fast-track deep-sea mining in an effort to secure supplies of critical minerals for the U.S.
- Both TMC and the U.S. have faced international pushback over these plans, with both the U.N.-affiliated International Seabed Authority (ISA) and China criticizing them as potentially violating international law because only the ISA has the authority to permit mining in international waters.
- While the U.S. regulator and TMC say they will manage environmental risks, critics say deep-sea mining could cause significant and potentially irreversible damage to marine ecosystems.
Scientists warn coral restoration can’t keep pace with global reef collapse
- Coral restoration is vastly outpaced by degradation, while intensifying climate stress, prohibitive costs, poor site selection and lack of coordination make large-scale restoration currently unviable, a new study has found.
- The scale-cost mismatch is staggering: Restoring just 1.4% of degraded coral could cost up to US$16.7 trillion, while current global funding is only US$258 million.
- The study found most projects assessed prioritize convenience over ecological value, restoring easily accessed reefs instead of climate-resilient or biologically strategic ones, undermining long-term outcomes.
- Researchers say standardized data and smarter planning are urgently needed to ensure that global coral restoration is scientifically informed and strategically targeted, and not merely symbolic.
‘We belong to one ocean’: Indigenous leaders push for seat at the table of high seas biodiversity treaty
- Members of Indigenous peoples and coastal communities convened at the United Nations Permanent Forum on Indigenous Issues to call for their inclusion in the Agreement on Marine Biodiversity of Areas Beyond National Jurisdiction (BBNJ), also known as the High Seas Treaty.
- These are the first-ever calls by Indigenous and coastal communities as members attending the forum prepare for the entry into force of the BBNJ agreement.
- Their participation could include involvement in governance, environmental management, and best-practice strategies based on traditional ecological knowledge and values.
- The BBNJ agreement will enter into force once at least 60 countries ratify it. So far, 113 countries have signed the agreement, while 19 have ratified the treaty.
Southeast Asia’s fisheries thrive despite decades of overfishing warnings: Study
- Overfishing in Southeast Asia’s coastal waters is a long-standing concern, but recent research suggests a more optimistic outlook, with 43% of marine stocks classified as underfished — 3.6 times higher than the global average.
- The study, covering stocks across the Indian and Pacific Oceans, highlights the region’s relatively abundant fisheries, particularly among pelagic species, 63% of which are underfished.
- Southeast Asia’s fisheries production surged by 7.1 million metric tons from 1993 to 2022, the largest increase globally, with Indonesia, Vietnam and Myanmar as major contributors.
- The research underscores the importance of small-scale artisanal fisheries that use nonselective methods to target multiple species, and co-management frameworks to maintain production and sustainability.
Whales and dolphins at risk as report reveals ecological decline in Gulf of California
- The recent “Assessment of the Ecological Health of the Gulf of California” report shows a decline in several populations of animals throughout the narrow sea flanked by the Mexican mainland and Baja California.
- The report was compiled by the Next Generation Sonoran Desert Researchers (N-Gen) in the U.S. in collaboration with Prescott College’s Kino Bay Center field station in Mexico, and draws on long-term monitoring studies.
- Many of the assessed groups, such as seabirds, whales, giant squid, crabs, starfish and fish, are in decline.
- Basic primary productivity, which nurtures species diversity and abundance in the Gulf of California, remains stable.
Ongoing global coral bleaching event affects 84% of world’s reefs
Coral reefs around the world have been subjected to unprecedented heat stress since early 2023. A new report finds heat-related coral bleaching has damaged corals in more than 80 countries, making it the most extensive bleaching event ever recorded, with no clear end in sight. Between January 2023 and April 2025, heat stress impacted 84% […]
Critically endangered right whales spotted in the Bahamas for first time
Two North Atlantic right whales, among the most at-risk marine mammals, were spotted swimming in the Bahamas on April 15, marking the first time the species has been seen in the nation’s waters. “That moment for me was breathtaking, and I couldn’t fully gather myself. I thought it was fake at first,” Isaac Ellis, a […]
How Mexican fishers are protecting an endemic oyster — and its ecosystem
- In Mexico’s Nayarit marshes on the Pacific Coast, the work of a fishing group called Ostricamichin has enabled the recovery of the Cortez oyster, an endemic and economically important mollusk, along with other marine species.
- The Marismas Nacionales Nayarit National Reserve, where the Cortez oyster is cultivated, accounts for 45% of Mexico’s national fishing production, thanks to floating rafts that help grow the endemic species in its waters.
- However, members of Ostricamichin say their project is threatened by climate change and illegal fishing. But the biggest threat, currently, is a proposed dam project which, they say, would devastate the delicate ecosystem.
Sheinbaum’s energy agenda under fire as Mexican activists slam LNG megaproject
- A controversial project bringing U.S. liquefied natural gas through the Mexican states of Chihuahua and Sonora to the Gulf of California continues to face strong resistance from environmental activists.
- Critics of the Saguaro energy project say the pipeline, associated infrastructure and increased industrialization will harm the biodiversity of the gulf, which hosts 85% of Mexico’s marine mammal species and one-third of the world’s dolphin and whale species.
- Energy analysts say the pipeline will increase Mexico’s dependence on U.S. fossil fuels and further delay energy transition goals, despite President Claudia Sheinbaum’s electoral promises to boost investments in clean energy.
- Environmentalists say they’re worried about the project’s greenhouse gas emissions, with methane being especially problematic due to its high global warming potential.
Icelandic whaling company calls off fin whale hunt this summer
Iceland’s largest commercial whaling company, Hvalur hf., has said it will not hunt any fin whales in the summer of 2025. In December 2024, Iceland’s government granted Hvalur hf., run by billionaire Kristján Loftsson, a five-year license to hunt 209 fin whales (Balaenoptera physalus) each year between 2025 and 2029. Another whaling company, Tjaldtangi ehf., […]
Even the Gulf of Aqaba’s ‘supercorals’ bleached during 2024 heat wave
- Scientists have long considered the corals in the Gulf of Aqaba in the northern Red Sea to be uniquely resilient to extreme temperatures.
- For the first time on record, however, the heat wave of 2024 bleached some of these super-resilient corals in Israeli and Jordanian waters, according to scientists.
- Scientists studying the episode’s severity and extent estimate that perhaps 5% of the corals in their study area in Israeli waters bleached during the oppressive Northern Hemisphere summer; a small fraction died, but most recovered over the relatively cooler months that followed.
- Tackling threats like pollution that could reduce the corals’ ability to withstand extreme heat is the best way to protect them from rising marine temperatures, and scientists say an oil terminal that sits barely half a kilometer from some of the “supercorals” poses an imminent threat.
Dugong numbers plummet amid seagrass decline in Thailand’s Andaman Sea
- Thailand’s dugongs are disappearing fast, reflecting an unfolding crisis in the region’s seagrass ecosystems.
- Seagrass beds on Thailand’s Andaman Sea coast that support one of the world’s most significant populations of dugongs have died off in recent years, creating an increasingly challenging environment for the charismatic marine mammals.
- Scientists point to a combination unsustainable coastal practices and climate change as the main factors driving the decline.
- Government agencies, marine scientists and volunteers are taking emergency steps to save the remaining dugongs, but experts warn their long-term survival in Thailand depends on fixing the root causes of the seagrass loss.
Study delves into increase in humpback whale sightings in UK and Ireland
Earlier this year, U.K. media reported an increase in humpback whale sightings in British and Irish waters. Between December 2024 and January, The Guardian reported some 17 sightings of humpback whales (Megaptera novaeangliae) from the Isles of Scilly in southwest England. Meanwhile, the nonprofit Sussex Dolphin Project reported more than 50 sightings from Sussex in […]
Global seabed regulator concerned by mining company’s unilateral actions
The International Seabed Authority has expressed concern following reports that the U.S. subsidiary of The Metals Company is seeking deep-sea mining permits from the U.S. instead of waiting for the global regulator’s finalization of a mining code. Mongabay recently reported that The Metals Company (TMC), based in Canada, has started a process to apply for […]
The Turtle Walker: Satish Bhaskar, sea turtle conservationist
Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. For months on end, he would maroon himself on remote islands — no phone, no company, no fanfare. Just a transistor radio, a hammock, and the possibility of seeing a turtle. It was enough. For Satish Bhaskar, the […]
Community-based conservation cuts thresher shark fishing by 91% in Indonesia: Study
- A conservation effort in eastern Indonesia helped reduce thresher shark catches by 91% among participating fishers by providing alternative income opportunities, according to a recent study.
- The program, which ran from 2021 to 2023, supported nine voluntary fishers with resources to transition to new livelihoods, leading to increased income for some, though a few struggled due to personal challenges and job instability.
- However, some fishers felt pressured by family or community expectations to continue shark fishing, and conflicts with local leaders also influenced participation.
- The study highlights the need for long-term conservation efforts that involve local communities, address socio-political challenges and receive strong government support.
Manatees in peril as human pressures push gentle giants toward the brink
Founder’s Briefs: An occasional series where Mongabay’s founder Rhett Ayers Butler shares analysis, perspectives and story summaries. Few creatures better embody the notion of peaceful coexistence than the manatee. Slow-moving and largely indifferent to human affairs, these aquatic herbivores graze on seagrasses and algae in the shallow coastal waters of the Americas and West Africa. […]
Conservationists, fishing industry find balance on protecting African penguins
Conservation NGOs and commercial sardine and anchovy fisheries in South Africa have reached an out-of-court settlement agreeing to extents of fishing closures around six key African penguin breeding colonies. The agreement, endorsed by the environment minister, was made a court order on March 18. The boundaries of the new fishing closures achieve “the sweet spot […]
How one researcher walked thousands of miles along India’s shores to conserve sea turtles
- ‘Turtle Walker’ is a 75-minute documentary on the life and career of turtle conservationist Satish Bhaskar, who surveyed more than 4,000 kilometres of the India’s coastline.
- In this interview with Mongabay India, Taira Malaney, the director of Turtle Walker talks about why she chose Bhaskar as the subject of her documentary, the challenges of filming with turtles and the role of environmental films.
- The film is set to be screened at the DC Environmental Film Festival 2025, where Mongabay is a media partner.
Seal ‘oceanographers’ reveal fish abundance in Pacific Ocean’s twilight zone
- The open ocean’s twilight zone, a vast deep ecosystem rich in fish biomass, is poorly understood because it is expensive and challenging for humans to reach its depths 200–1000 meters (660–3,280 feet) below the surface.
- A new study used northern elephant seals (Mirounga angustirostris) — marine predators that forage in the twilight zone — to help understand fish abundance deep down, both five decades into the past and two years into the future.
- The findings illustrate how apex marine predators, such as elephant seals, can serve as sentinels in understanding how fish abundance cascades through marine food webs.
- Given increased interest in fishing in the twilight zone and the unfolding effects of climate change, seals and other deep-diving marine predators could help keep an eye on changes in the oceans’ depths.
USAID funding cuts jeopardize creation of Ghana’s first Marine Protected Area
- The U.S. foreign aid freeze blocks the establishment of Ghana’s first Marine Protected Area (MPA).
- The MPA was being created under the Ghana Fisheries Recovery Activity (GFRA), a USAID-funded program that aimed to restore pelagic fish stocks crucial for the country’s food security.
- Ghana’s small pelagics, consisting mostly of sardines, anchovy and mackerels, make up about 60% of local fish landings and serve as a primary source of protein for almost two-thirds of the country’s population.
- The West African nation depended heavily on U.S. foreign aid to preserve its small pelagic fisheries sector, and without other funding, there could be cascading impacts on its economy.
Caribbean reef sharks rebound in Belize with shark fishers’ help
- Endangered Caribbean reef sharks (Carcharhinus perezi) and other shark species are making a striking recovery in Belize after plummeting due to overfishing between 2009 and 2019, according to recent observations.
- Experts say the establishment of no-shark-fishing zones around Belize’s three atolls in 2021 is what enabled the population boom.
- A remarkable cooperation and synergy among shark fishers, marine scientists and management authorities gave rise to the shark safe havens and led to their success, experts say.
To save a Honduran reef, locals craft custom gear and hunt invasive lionfish
Without a natural predator, invasive lionfish, which damage coral reefs, have become widespread throughout the Caribbean over the last several decades. To prevent further harm off the northern coast of Honduras, locals have resorted to crafting their own spears to effectively and safely hunt lionfish, reports Mongabay contributor Fritz Pinnow. Julio San Martín Chicas, program […]
Scientists identify more than 800 new species in global Ocean Census
The Ocean Census project has identified 866 new marine species, many from the deep seas, less than two years since its launch. The project announced its findings on March 10, marking the first phase of its goal to document 100,000 new species in the Earth’s oceans. “The ocean covers 71% of our planet, yet only […]
Liberia to start industrial shrimp fishing, worrying artisanal fishers
- Liberia plans to expand industrial bottom trawling in the country by authorizing a new fishery for high-value shrimp.
- However, the government has released few details about the plan, including how much shrimp it will allow the new fishery to exploit, when the trawling would begin, or how it would be regulated.
- The country’s umbrella organization for artisanal fishers casts the move as a threat to the livelihoods, safety and food security of Liberia’s more than 57,000 artisanal fishers, as well as to the country’s marine life.
From Kenya to Madagascar, massive effort aims to put seagrasses on the map
In 2019, scientists set out to map the extent of seagrass in Seychelles, an island nation off the eastern coast of Africa. There, they hit upon a startling number: More than 90% of the country’s “blue carbon,” or the carbon stored in marine ecosystems, is contained within seagrass meadows. Under the Large-scale Seagrass Mapping and […]
Funerary practices in Fiji protect marine areas while honoring the deceased
- Indigenous (iTaukei) people across Fiji have historically protected their freshwater and marine areas in memory of chiefs and community members who have passed away. These are called aquatic funerary protected areas (FPAs).
- Researchers published a study to shine a light on this sustainable resource management practice, which they say could present a community marine conservation solution in the region but is largely absent from scientific literature and rarely implemented as a strategy.
- FPAs differ in size and practice but can stretch from shoreline to fringing reefs and tend to ban fishing and harvesting of many species for 100 nights after they are declared.
- From 1960 to 2019, communities established a total of 188 FPAs where 44% of FPAs were protected for 100 nights, and 47% protected all resources and associated ecosystems form fishing and harvesting.
The U.S. terminated its 30×30 conservation plan but this also presents an opportunity (commentary)
- “We should be proud of the progress that was made over the last years, but conservation priorities have always evolved [to] save the whales, save the rainforest, to today’s focus on climate change and area targets,” and the recent U.S. withdrawal from the global 30×30 conservation initiative won’t change that, a new op-ed argues.
- The U.S.’s 30×30 goal was central to President Biden’s America the Beautiful for All initiative and mobilized federal funding, new protections, and an all-of-government approach to conservation.
- “We should not accept these rollbacks as permanent defeat,” the authors say, but rather as “an opportunity to make our efforts sharper and more effective.” The loss of 30×30 should not be seen as a rejection of conservation values, but as a call to reimagine a conservation strategy that works for more people in more places.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
Baja California tourism poses mounting challenges for conservation, critics say
- Baja California Sur attracts more foreign tourism investment than any other state in Mexico, but the rapid development also poses threats to protected areas, marine habitats and the traditional customs of small communities.
- Numerous hotel projects underway this year could level sand dunes and encroach on protected areas, overwhelming many environmental activists who aren’t sure how to combat the rapid development.
- Some critics question the eco-tourism model that has been applied to coastal fishing villages, many of which regret trading in their customs for tourist businesses.
Wisdom, the world’s oldest known bird at 74, has a new chick
Wisdom, the world’s oldest known wild bird, made headlines recently for laying an egg with a new partner, her first egg in four years. The egg has now hatched, and Wisdom, a Laysan albatross (Phoebastria immutabilis), or mōlī in Hawaiian, was spotted caring for her chick, the U.S. Fish and Wildlife Service (USFWS) Pacific region […]
Lawsuit is latest push to curb bottom trawling in protected European waters
- The fishing practice of bottom trawling continues in European marine protected areas (MPAs) despite conservation concerns over its destruction of seabed habitats and indiscriminate catches.
- Four NGOs have sued the Netherlands to stop bottom trawling in the Dutch section of Dogger Bank, an MPA in the North Sea, citing its ecological importance.
- Advocacy efforts across Europe, including other lawsuits, have led to some restrictions on the practice, such as the closure of the U.K. section of Dogger Bank to bottom trawling, but most European MPAs remain insufficiently protected, a 2024 study indicates.
- Fishing interests often disagree with the NGOs’ position on bottom trawling in MPAs, saying that regulated bottom trawling can coexist with conservation goals and support communities socioeconomically, and that blanket restrictions risk marginalizing fishing communities without addressing broader environmental challenges like pollution or climate change.
The world’s kelp needs help — less than 2% is highly protected
- Kelp forests support a kaleidoscope of biodiversity and perform crucial ecosystem functions, yet they are in trouble globally.
- A recent journal commentary shows that just 15.9% of kelp forests are in protected areas, and only 1.6% of them are in areas with the highest levels of protection.
- The authors said they hope their findings will motivate policymakers to include kelp forests in international conservation targets, such as the “30×30” mandate to protect 30% of Earth’s land and sea by 2030.
Tourists are back at this Instaworthy Philippine town, but can its sewage system keep up?
- The town of El Nido on the Philippine island of Palawan, known for its stunning limestone cliffs and azure waters, has become a popular tourist destination due to heavy social media promotion.
- But tourism has caused severe coastal contamination, with consistently high fecal coliform levels in the sea off El Nido, despite efforts like a new sewage treatment plant.
- Policies like tourist caps and subsidies for sewage connections have been introduced, but the system’s pipeline network remains insufficient, with only 3.3% of households in the town center connected to the system.
- Experts blame poor planning, overpromotion on social media, and prioritization of economic gains over environmental health, and urge stronger waste management, regulatory enforcement, and social media campaigns promoting responsible tourism.
Study suggests algal blooms disorient whales, putting them in danger
- Harmful algal blooms (HABs) in the ocean produce toxins that can sicken humans and marine animals.
- A new study has found an increase in large-whale deaths and injuries near HABs on the U.S. East and West Coasts, mainly due to ship strikes and entanglement in fishing gear.
- The authors propose the reason may be that HAB toxins disorient whales, decreasing their ability to avoid ships and fishing gear. However, they say more research is needed to confirm the link.
- They recommend using advanced HAB prediction models to reduce whale deaths by limiting activities like fishing when HABs and whales overlap.
Underwater volcano in Barents Sea reveals diverse marine life, study finds
What’s new: Following the discovery of the underwater Borealis Mud Volcano on the Arctic seabed in 2023, researchers have now confirmed that the methane-spewing volcano is home to a diverse array of marine life thriving in the unique habitat. What the study says: In 2023, scientists from UiT The Arctic University of Norway discovered the […]
Underwater citizen science reveals the specter of ghost fishing in Thailand
- Teams of scientists and hobbyist scuba divers have assessed the extent of discarded fishing gear on Thailand’s marine wildlife, finding it poses a pervasive threat to a huge range of species.
- Discarded or “ghost” fishing gear comprises 10% of all marine plastic debris in the ocean, persisting for decades and passively catching and killing species from sea snails to whale sharks.
- Thailand is famed for its recreational diving, and efforts are underway to retrieve ghost gear from the ocean and rescue animals found entangled, as well as to work with fishers to help them recycle their old equipment.
- Experts say preventing gear from entering the ocean in the first place is paramount; solutions must extend beyond cleanup and recycling efforts to encompass policy reform, economic incentives, and improved infrastructure.
Marshall Islands protects ‘pristine’ Pacific corals with first marine sanctuary
The Marshall Islands government has announced it will protect an area of the Pacific Ocean described as one of the most “remote, pristine” marine ecosystems on Earth. The 48,000-square-kilometer (18,500-square-mile) marine sanctuary covers two of the country’s northernmost uninhabited atolls, Bikar and Bokak, and the surrounding deep sea, and it is the first federal marine […]
As Gálapagos ecotourism booms, top naturalist guide urges sustainability
- Galápagos National Park and the marine reserve protecting the islands’ surrounding waters welcome 300,000 visitors a year and support sustainable fisheries and tourism jobs for about 30,000 residents.
- The Ecuadorian government restricts the number of visitors accessing each island or dive site daily, and requires each tourist or group to hire a guide to accompany them, ensuring that maximum ecological information is shared and that park rules aimed at protecting the unique flora and fauna are followed.
- Many hundreds of Galápagos residents work year-round in this capacity, like veteran guide Marco Andres Vizcaino Garcia, who Mongabay interviewed about the challenges and opportunities he sees for ecotourism, conservation and research across these iconic islands he calls home.
2024’s top ocean news stories (commentary)
- Marine scientists and policy experts from nine international research and conservation institutions share their list of the top ocean news stories from 2024.
- Hopeful developments this past year include advancing innovations in mapping technologies, legal strategies and financial instruments to protect the ocean and greater inclusion of Indigenous peoples and coastal communities into high-level ocean planning.
- At the same time, 2024 was the hottest year on record as a result of climate change, surpassing 2023, and scientists declared the fourth global coral bleaching event, a major setback for the world’s coral reef ecosystems.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
We need a North Pole Marine Reserve to secure a healthy future for Arctic waters (commentary)
- In 2024, the cod fishing moratorium on Newfoundland’s Grand Banks was lifted, 32 years after a historically significant ecological collapse of the fish’s population was caused by overfishing.
- The Central Arctic Ocean Fisheries Agreement signed in 2019 provides an example of how to address the threat from such overfishing by using the precautionary principle, international collaboration and science led evaluations of fish stocks.
- The future health of Arctic marine ecosystems can be secured by establishing a North Pole Marine Reserve, a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Sunken ships in Sri Lanka’s Colombo attract more fish than coral reefs
- Shipwrecks host more diverse fish assemblages compared with natural coral reefs off the coast of Colombo, Sri Lanka’s commercial capital.
- Research shows that shipwrecks provide more complex structures with various microhabitats, attracting fish and offering both food and safety, making them more appealing than coral reefs.
- Scientists used the diver operated video recording method, in which a diver carries a video camera along a predefined transect, for allowing species identification and quantification later in the laboratory.
- Sri Lankan waters contain 115 known shipwrecks, with the oldest being the Godawaya wreck, dating back to the second century BCE, and they play a significant role in dive tourism.
Marine protection efforts in 2024 were still a drop in the ocean
In 2022, the world agreed at a U.N. biodiversity summit to protect 30% of Earth’s land and water by 2030. While protected areas already account for almost 15% of the planet’s land, protection for the world’s oceans is lagging far behind, at just over 8%. In 2024, several new marine protected areas (MPAs) helped nudge […]
Photos: Top new species from 2024
- Scientists described numerous new species this past year, from the world’s smallest otter in India to a fanged hedgehog from Southeast Asia, tree-dwelling frogs in Madagascar, and a new family of African plants.
- Experts estimate that fewer than 20% of Earth’s species have been documented by Western science, with potentially millions more awaiting discovery.
- Although such species may be new to science, many are already known to — and used by — local and Indigenous peoples, who often have given them traditional names.
- Upon discovery, many new species are assessed as threatened with extinction, highlighting the urgent need for conservation efforts.
Coral destruction for toilet construction: Interview with a Malagasy fisher
- Toamasina, a coastal city in eastern Madagascar, is surrounded by an extensive network of coral reefs that are home to near-threatened species.
- For decades, these reefs have been under threat from an unusual activity: The use of coral in the construction of septic tanks.
- Mongabay spoke with Abraham Botovao, a boat skipper and the president of a local fishers’ association, who has been closely monitoring this trade and its impact on the local marine environment.
- “It frustrates me every time I see them when I’m out fishing, but unfortunately all I can do is watch without being able to do anything,” Botovao said.
A port is destroying corals to expand. Can an NGO rescue enough to matter?
- The ongoing expansion of the port of Toamasina in eastern Madagascar is set to destroy 25 hectares (62 acres) of coral reefs.
- Tany Ifandovana, a Malagasy NGO, removed a small portion of these corals before construction began, and transplanted them to a coral island several kilometers away, as a way to ecologically compensate for the losses, at least in part.
- The NGO faces major challenges, including a lack of resources, little support from the port, and locals destroying corals around the island transplant site.
- “As an environmentalist, it hurt my heart to know that these corals were just going to be filled in,” Tany Ifandovana’s vice president told Mongabay. “Something had to be done.”
Scientists, Māori experts uncover new insights into rare spade-toothed whale
- Spade-toothed whales (Mesoplodon traversii) are among the rarest and least-studied whales, partly due to their deep-diving behavior and long periods spent underwater in the vast, underexplored South Pacific Ocean.
- Until recently, only six records of spade-toothed whales had been documented over 150 years, all but one found in Aotearoa New Zealand, a known hotspot for whale strandings.
- The seventh and most recent record, a 5-meter (16-foot) male, stranded in New Zealand in July 2024, was recently dissected by scientists and Māori cultural experts at a scientific research center.
- A key finding was the presence of tiny vestigial teeth in the upper jaw, offering insights into the species’ evolutionary history, with further discoveries anticipated as analysis continues.
Scientists in Bali find what could be the world’s largest coral colony
When a massive coral colony was recently discovered in the Solomon Islands, it was believed to be the largest in the world. Then last week, scientists found an even bigger one in the waters off the Indonesian island of Bali. Coral restoration nonprofit Ocean Gardener announced that Indonesian marine biologists had measured a Galaxea astreata […]
Communities warn of threat to ecosystems from Brazil bridge project
- Islanders and experts have warned of widespread environmental and social impacts from the construction of a bridge linking the Brazilian city of Salvador with the island of Itaparica in Todos os Santos Bay.
- Critics say the project will devastate mangrove forests and coral reefs, leading to environmental imbalance, compromising fishing communities and threatening the survival of many marine species including humpback whales and sea turtles.
- Proponents say the bridge will boost development in the region, in particular transporting agricultural produce, but islanders say the anticipated population surge on Itaparica will create unsustainable pressure on public services as well as drastically change the dynamics of the community living there.
- Experts say the best solution for improving transportation links between Salvador and Itaparica is to invest in the existing ferry system, but this option wasn’t considered by planners.
Research vessel E/V Nautilus spots multiple nautiluses for the first time
The crew of the research vessel E/V Nautilus erupted in excited chatter as they watched live video from a remotely operated vehicle traversing the German Channel in the Pacific island state of Palau. “It’s finally happened!” someone could be heard saying as the camera on board the ROV Hercules zoomed in to reveal a lone […]
Time for a ‘moral reckoning’ of aquaculture’s environmental impacts
Aquaculture is often promoted as a solution to declines in wild fish populations, and has outpaced the amount of wild-caught fish by tens of millions of metric tons each year. But it carries its own myriad environmental impacts, to the detriment of both humans and the ocean, says Carl Safina, an ecologist and author. He […]
After historic 2024 coral bleaching, hope remains for Mesoamerican Reef
- The Mesoamerican Reef, the longest barrier reef in the Western Hemisphere, stretches 1,000 kilometers (620 miles) along the Caribbean coasts of Mexico, Belize, Guatemala and Honduras.
- The latest instalment of the Mesoamerican Reef Report Card, a periodic health assessment, finds that in 2024, the worst coral bleaching event on record reduced the reef’s coral cover.
- Although the overall health of the Mesoamerican Reef remains “poor,” according to the report, its health actually improved for the first time in five years.
- The report attributes this positive development to an increase in fish populations due to effective enforcement of fisheries rules by regional authorities.
As Thailand’s blue swimming crabs decline, crab banks offer a sustainable solution
- Fishing of blue swimming crabs in Thailand has historically exceeded sustainable levels, leading to a decline in both the number and size of crabs that fishers were catching.
- Understanding the urgency of recovering the crab population, fishers, government agencies, NGOs and the private sector have rolled out a series of initiatives to make the fishery more sustainable.
- These include seasonal bans on harvesting egg-carrying crabs, restrictions on trawling and certain kinds of fishing gear, and the establishment of crab banks, where egg-bearing females are nurtured, with their hatchlings later released into a secure marine site.
- Fishers and experts welcome the crab banks, but emphasize the need for a “sustainable holistic scheme,” given that a reliance on crab banks alone won’t rebuild blue swimming crab populations.
In Chile, discovery of shallowest red hydrocoral forest yet surprises scientists
- Scientists have discovered massive marine forests in southern Chile’s Kawésqar National Reserve, formed by the red hydrocoral species Errina antarctica.
- These colonies, found at depths ranging from 1.23 to 33 meters (4 to 108 feet), are the world’s southernmost and shallowest known to date.
- Experts emphasize the importance of protecting these fragile ecosystems and hope the newly discovered forests will be considered in the reserve’s management plan.
Traditional fishers in Peru guard the coast from illegal fishing
- In Chimbote, north of Lima in Peru, fishers have been working for years to protect the Peruvian grunt (Anisotremus scapularis), a fish species in high demand for its meat, along a 1.5-kilometer (almost 1-mile) stretch of coast.
- Illegal fishing methods such as explosives have become common in this area, and the authorities have failed to deter them.
- The fishers, who use traditional methods to catch the grunt from shore, keep watch for illegal activities in the area in hopes that the species will not disappear.
How a holistic approach aims to heal mangroves in Guinea-Bissau
- Though small, Guinea-Bissau has sizable amounts of mangroves, which cover 9% of this West African country.
- Farmers clear patches of mangroves to grow rice, but climate change and socio-economic shifts mean that many hectares of former rice fields lie abandoned, and could be restored.
- Wetlands International is using an approach called Community-based Ecological Mangrove Restoration (CBEMR) to regenerate abandoned rice fields in and around Cacheu and Cantanhez national parks; 2,600 hectares have been restored to date.
- Community involvement is a cornerstone of the approach, and the project also supports income generation and educational activities.
‘Tragic’ mass fish die-off devastates Amazon River channel amid historic drought
A mass fish die-off in Brazil’s Amazon River region has killed an estimated 20-30 metric tons of fish and other aquatic animals, following one of the worst droughts in Amazonian history. On the night of Nov. 12, fishers from the riverine community of Igarapé do Costa, near the city of Santarém in northern Brazil, began […]
A father and son duo fight invasive lionfish on a Honduran reef
- Live coral covers 68% of Tela Bay, on the northern coast of Honduras, creating a complex ecosystem that’s part of the wider Mesoamerican Reef system.
- Among stressors including overfishing and coral bleaching due to climate change, is the invasive lionfish — a spectacular-looking, venomous, striped fish native to the Indo-Pacific that, with no natural predators here, is wreaking havoc on marine ecosystems throughout the Caribbean.
- To protect Tela Bay’s embattled coral reef, a local father and son are mounting a single-minded lionfish hunting effort to limit the fishes’ spread, hunting the fish themselves and organizing hunting competitions.
44% of reef-building coral species at risk of extinction: IUCN
Some 44% of the world’s warm-water, reef-building coral species are facing risk of extinction, according to the latest update by the IUCN Red List of Threatened Species. This is a significant increase compared to the last assessment in 2008, when a third were considered threatened. The latest assessment covers all known coral species that build […]
World’s largest known coral — visible from space — found in Solomon Islands
Scientists aboard a National Geographic research vessel recently discovered the largest known coral in the world. The massive coral, which is 34 meters wide (112 feet) and 32 meters (105 feet) long, is visible from space. It’s a coral of the species Pavona clavus, which typically grows to just 2-3 meters (6.5 to 9.8 feet) […]
Local groups drive creation of new Puerto Rico marine protected area
The U.S. territory of Puerto Rico recently gained a new marine protected area off the island’s central north coast. The MPA, named Jardines Submarinos de Vega Baja y Manatí or the Vega Baja and Manatí Underwater Gardens, spans 202 square kilometers (77 square miles) and is the culmination of a 16-year effort by a coalition […]
Peruvian fishers help red sea urchins recover from overfishing
- For 20 years, fishers from the district of Marcona, on Peru’s southern coast, have been recovering populations of red sea urchin, thanks to an alliance with the government.
- According to a monitoring study by the Peruvian Institute of the Sea, there are more urchins in the area where Marcona fishers work than in other areas.
- Part of the success is rooted in the spatial management of coastal areas that the artisanal fishers’ associations are applying; they are pioneers of this practice in the country.
How the oceans fared at the COP16 biodiversity conference in Colombia
- The United Nations Convention on Biological Diversity summit (COP16) took place in Cali, Colombia, from Oct. 21 to Nov. 2.
- Several oceans-related decisions, as well as the formal inclusion of Indigenous peoples and local communities in negotiations going forward, were bright spots at the summit, observers said.
- A key development for the ocean was the agreement, culminating eight years of negotiations, on a protocol for identifying unique areas of the high seas, the two-thirds of the world’s oceans that are international waters, for protection.
- Other important developments included the announcement of new marine protected areas and new funding for ocean conservation.
Population crash means African penguins are now critically endangered
Africa’s only resident penguin species is now officially critically endangered, according to a recent assessment by the International Union for Conservation of Nature (IUCN). Over the past century, the African penguin (Spheniscus demersus) has suffered precipitous declines in its population. In the mid-1950s, there were an estimated 141,000 breeding pairs of African penguins, or 282,000 […]
‘Don’t call it the high seas treaty’: Ocean biodiversity risks being sidelined in new deal
The global treaty designed for the “objective of the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction,” adopted last year, has more recently gained an inaccurate, but popular, nickname, and lacks independent enforcement, according to some observers. Known officially as the BBNJ agreement (biodiversity beyond national jurisdiction), it has since […]
At COP16, the ocean needs action, not more promises (commentary)
- As delegates to COP16 debate conservation measures like 30×30 initiatives, a new op-ed by the environment director of Bloomberg Philanthropies, Antha Williams, and the founder of Pristine Seas, Dr. Enric Sala, says that protecting our ocean is more than a conservation measure — it’s a lifeline.
- Well-managed and highly protected marine areas (MPAs) help restore ecosystems, ensuring food security and livelihoods for the billions who depend on them, but a new analysis shows that only 8.3% of the world’s ocean is protected in this way, and that most MPAs are either protected weakly or in name only.
- “Ocean protection has never been more urgent. As leaders gather in Cali, they must ensure that ‘protecting our ocean’ means truly protecting it. The 30×30 target will only be meaningful if we protect areas effectively — not just on paper,” they argue.
- This article is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
More krill fishing and no new protected areas for Antarctic seas after latest talks
- The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) held its annual meeting Oct. 14-25 in Hobart, Australia.
- The international body comprised of 27 members is charged with conserving marine life in Antarctic waters, an area that is changing rapidly due to human-caused climate change.
- In 2009, the CCAMLR pledged to create “a representative network” of marine protected areas in the Southern Ocean, yet negotiations over four proposed MPAs have been at a standstill for years, due to repeated vetoes by the Chinese and Russian delegations.
- Despite a year of interim negotiations, CCAMLR members failed again at the latest meeting to reach agreement on creating any new marine protected areas and rolled back regulation of the burgeoning Antarctic krill fishery.
Protecting coral reefs boosts fish numbers by 10%: Study
- New research has found that the protection of coral reefs has boosted the amount of fish they harbor by around 10%.
- The study used survey data from about 2,600 reefs with varying levels of protection from overfishing.
- The team then built a statistical model to predict what would have happened if all reefs had not been protected, and the biomass, or collective weight of the resident fish, dropped by more than 10%.
- The scientists note their findings demonstrate that protections like marine protected areas are working and that greater coverage could lead to even more gains in fish biomass.
Near-extinct North Atlantic right whales get a small population boost
The population of the critically endangered North Atlantic right whale increased by five individuals, bringing the estimated total to 372 in 2023, according to an Oct. 22 report. The North Atlantic right whale (Eubalaena glacialis) population has declined since 2011. However, the slight rise in recent years may signal some stability for these ocean giants, […]
Studies identify microplastics contamination along entire Brazilian coastline
- Numerous projects are measuring the impacts of plastics in Brazilian seas; methods range from beach sampling to analysis of mollusk digestive tracts.
- Brazil discards 3.4 million tons of plastic every year, a third of which reaches the coast; it is estimated that between 86 million and 150 million tons of plastic residue have accumulated in the ocean here.
- A bill has been introduced in Brazil to promote plastic recycling. On the global level, the Global Plastics Treaty is being negotiated by 175 nations to diminish single-use plastic pollution.
Fishers & scientists unite to restore seaweed populations on Chilean coast
- Scientists and fishers in Chile are repopulating a coastal area exposed to high levels of pollution with two species of seaweed that were once abundant in the area.
- The disappearance of the seaweed has formed ocean deserts. Its absence has not only reduced biodiversity but also deprived the area of the ecosystem services that these plants provide.
- Despite considerable challenges, the project already shows signs of hope.
Scientists discover new hammerhead shark species — and it’s already at risk
A new-to-science hammerhead species, the shovelhead shark, has been hiding in plain sight for three centuries due to its close resemblance to a long-lost relative, the bonnethead shark. After a decade of research, a breakthrough study published Sept. 24 found that these are two distinct species, challenging the widely accepted 1758 description by biologist Carl […]
The disappearing red ghost crabs of Cox’s Bazar, a conservation crisis in Bangladesh
- Cox’s Bazar Beach in southeast Bangladesh is known for its vibrant red crab population, which creates a stunning spectacle in the early mornings and late afternoons. However, this natural wonder is now threatened by human activities and environmental degradation.
- Red ghost crabs benefit coastal ecosystems by aerating sand and improving water infiltration, and also as prey species. Their decline threatens the ecosystem health.
- Researchers say a beach management plan is crucial for their protection and restoration. Protected areas like in Kuakata have shown effectiveness in conserving ghost crabs. Raising awareness among local communities is also crucial for successful conservation efforts in Bangladesh.
Combined effects of human activities increase risk to ecosystem services
- A global analysis finds that exposure to multiple human-caused stressors is reducing the ability of ecosystems to provide ecosystem services. However, precisely how these myriad human-induced environmental changes interact to disrupt ecosystems and alter these vital services is poorly understood.
- Researchers analyzed more than 1,000 experiments that measured the response of ecosystems to one, two or three human-caused environmental stressors. The scientists found that the ability of ecosystems to maintain their current function declines as the number of stressors they are exposed to increases.
- The scientists also analyzed data from a long-term experiment on the effect of four simultaneous environmental stressors on plant productivity. This single study showed that ecosystem services’ resistance to change gradually declines with long-term exposure to multiple environmental stressors.
- The new study sheds light on a crucial unanswered environmental science question: How do interactions between multiple planetary boundary transgressions accelerate the collapse of key Earth system processes that keep the planet habitable?
A nesting haven for sea turtles in Suriname is fading away
- Braamspunt, a crucial sea turtle nesting beach in Suriname, is facing rapid erosion and could soon disappear as climate change impacts and sand mining eat away at it.
- The beach is one of only two major nesting sites for sea turtles in the country, and its imminent loss threatens in particular the survival of leatherback turtles; 90% of the vulnerable species’ local population nests here.
- Mining of sand as a construction material has significantly contributed to the degradation of Braamspunt, impacting not only the local sea turtle population and the broader coastal ecosystem but also the coastal defense of the capital, Paramaribo, against rising sea levels.
- Braamspunt is also subjected to a natural process of drift — the beach once lay farther west, and was moved to its present location by currents — but this process will end if there’s no more sand to move.
Cambodian fishers-turned-citizen scientists monitor marine mammal deaths
- In Cambodia, the NGO Khmer Ocean Life has trained residents of coastal fishing communities about threats to marine mammals so they can participate in a citizen scientist network aimed at tracking bycatch and strandings.
- At least 10 species of marine mammals are commonly found in Cambodia, including dugongs (Dugong dugon), Indo-Pacific finless porpoises (Neophocaena phocaenoides), Indo-Pacific humpback dolphins (Sousa chinensis) and endangered Irrawaddy dolphins (Orcaella brevirostris); all of these species face an array of threats, including coastal development and unsustainable fishing practices.
- Bycatch is the biggest threat facing marine mammals globally, according Sarah Tubbs, Khmer Ocean Life’s co-founder and co-director, and coastal marine mammals face greater threats due to their proximity to fishing activities.
- Currently, data on marine mammal bycatch and strandings are lacking in Cambodia; the citizen scientist network will provide real-time insights into where bycatch mitigation efforts are most needed.
‘Mermaids’ dive to study and protect Mexican fishing grounds
- For more than 20 years, a fishing cooperative in the community of Isla Natividad, in Baja California Sur, Mexico, has been working to adapt and to be more resilient to climate-change impacts like tropical storms, marine heat waves, hypoxia and loss of kelp forests; these latter shelter species that help feed the community but have experienced mass mortality, such as the abalone.
- The community has invested in diversifying their economic activities and have established volunteer-run marine reserves. Their aim is to help affected fish stocks recover.
- A group of citizen scientist divers known as the Sirenas de Natividad was founded in 2019; this all-women team is made up of five homemakers, all wives and daughters of fishers, who are monitoring fishery resources and the volunteer-run marine reserves.
In the Pacific depths, an underwater mountain hosts a bonanza of new species
- Scientists discovered a new underwater mountain and more than 100 potentially new-to-science species during recent expeditions in the Southeast Pacific, including rare creatures like flying spaghetti monsters and Casper octopuses.
- The newly found seamount, located about 1,450 km (900 mi) off Chile’s coast, rises 3,100 meters (nearly 2 miles) from the seafloor and hosts thriving deep-sea ecosystems with ancient corals and glass sponges.
- These findings highlight the rich biodiversity of the high seas and come at a crucial time as the U.N. finalizes the high seas treaty to protect international waters.
- While the treaty sets rules for marine protected areas, challenges remain in its implementation, including formal adoption and ratification by at least 60 countries.
Social media influencers’ behavior with marine wildlife is risky for animals, too (commentary)
- Social media accounts which showcase close encounters with marine wildlife — from whales to white sharks and manta rays — have become common and popular.
- A distinctive feature of these is the presence of people in the images, where the focus is frequently on the individual near – or sometimes in direct contact with – the species: the main subject is not the animal itself but the human interacting with it, which puts both people and wildlife at risk.
- “In these experiences, what many of us often seek – a unique connection with a species different from our own – overlooks a fundamental principle: marine wildlife does not need our friendship, but rather our protection,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Celestún refuge fights illegal fishing & helps revive species in Mexico’s Yucatán
- In 2019, the Celestún fishing community in Yucatán, Mexico, established a 324-square-kilometer (125-square-mile) Fishing Refuge Zone (FRZ), the largest in the Gulf of Mexico.
- The area was created in response to the overfishing of sea cucumbers, a species that had been in rapid decline, which caused social strife in the community.
- Local fishers have been trained to monitor the refuge to help the species recover and protect other species of commercial interest, like octopus and lobster. The participation of women has been an important part of the process, as they help lead community monitoring efforts.
In Mexico, scientists race to save Marietas Islands’ corals from ocean warming
- Temperatures in the Pacific Ocean broke records in 2023 as climate change and El Niño destroyed a large part of Mexico’s Islas Marietas National Park.
- Only a fifth of the coral coverage registered in 1995 still survives, experts say.
- But scientists working on the islands have discovered individual corals that can resist higher temperatures, creating hope that the corals can recover.
Clock ticks on Indonesia shark skinners as predator population plunges
- Indonesia accounts for more sharks caught in open water than any other country, but fish stocks around the main island of Java are in crisis due to years of overfishing by large vessels using purse seine nets.
- In the fishing port of Brondong, a major landing site in East Java province, fishers continue to process dozens of species of sharks caught increasingly far from the world’s most populous island.
- Shark conservation is attracting increasing international attention because of the relative lack of protection and awareness of the predators’ roles in ocean ecosystems.
Amid haze of war, Lebanese activists helped turtle hatchlings journey to sea
- The sandy beaches of South Lebanon are a crucial nesting ground for sea turtles.
- This year, 2,500 sea turtle hatchlings safely reached the Mediterranean from Al-Mansouri Beach, a key nesting site near the city of Tyre, according to a volunteer group that has been tending the beach and its turtles for two decades.
- Despite the escalating conflict with Israel and the prevailing climate of fear, the volunteers continued their efforts to protect both the animals and the beach.
- On Sept. 23, the leader of the volunteer group told Mongabay she had to flee her home in Tyre after surviving several Israeli air strikes.
Five times more marine fish may be at risk of extinction: study
What’s new: The number of bony marine fish species at risk of extinction could be five times higher than previously estimated by conservation scientists, a recent study suggests. What the study says: Bony fish, or teleosts, represent some 96% of the world’s marine fish species. The IUCN Red List of Threatened Species, the global reference […]
Lab-grown corals resisted bleaching during Caribbean’s worst marine heat wave
- In 2023, the Caribbean Sea experienced unprecedented heat: Beginning in March, sea surface temperatures throughout the region ranged from 1°-3°C (1.8°-5.4°F) warmer than normal.
- This unprecedented heat brought the worst coral bleaching event in the Caribbean’s recorded history, bleaching 60-100% of some reefs, and killing many patches.
- A new study found that certain species of coral propagated in the lab and then outplanted to restore reefs in five countries showed few signs of bleaching despite the prolonged marine heat wave, faring better than wild corals or corals propagated from fragments.
Fishing in a fog: Ship noise hampers orcas’ hunting success
Underwater noise from ships is making it tough for killer whales, or orcas, to find and catch their favorite fish, a recent study has found. Orcas (Orcinus orca) rely heavily on sound to hunt. They emit ultrasonic echolocation clicks that bounce off objects. By listening for the echoes of these clicks, the orcas can identify […]
Maldives drops plan to reopen longline tuna fishing following protests
Longline fishing for tuna will remain closed in the Maldives, the island country’s president announced on Aug. 29. The decision came after local fishers, conservation NGOs and scientists protested against plans by the administration of President Mohamed Muizzu to reopen longline fisheries for yellowfin tuna and bigeye tuna. Longline fishing has been banned in the […]
A Mexican marine park shelters giant manta rays: Interview with Madalena Pereira Cabral
- For more than four years, marine biologist Madalena Pereira Cabral has been dedicated to investigating and understanding the movements of giant manta rays (Mobula birostris) in Revillagigedo National Park in the Mexican Pacific.
- Using satellite tags, the expert aims to describe these animals’ routes through the ocean and the reasons behind the fact that almost all the individual manta rays she has been studying end up leaving the marine protected area. Leaving this area exposes them to fishing pressure, which puts them at risk.
- One of the scientist’s most important findings is that giant manta rays’ movements and the groups they form are influenced by the El Niño phenomenon. This information is crucial for the conservation of this little-understood species.
Famous ‘spy’ beluga whale found dead in Norway
A beluga whale nicknamed Hvaldimir, who was initially suspected of being a Russian spy, was found dead on Aug. 31, according to Norwegian media. Hvaldimir’s body was first spotted by a father and son who were out fishing for mackerel near the port town of Risavika in southwestern Norway. “This morning, after receiving a sighting […]
$35m debt-for-nature deal aims to protect Indonesia’s coral reefs
- A $35 million debt-for-nature swap between Indonesia and the U.S. aims to conserve coral reefs in eastern Indonesia over the next nine years, with the funding offset by canceled sovereign debt payable to the U.S.
- Indonesian conservation groups and their international partners will implement ground programs to protect reefs in key areas, strengthen marine protected areas and support community livelihoods under the deal.
- While environmentalists welcomed the funding, some argued debt swaps were insufficient to address the larger environmental and development challenges faced by countries in the global south.
Sea lions with video cameras help scientists map ocean floor
For the first time ever, scientists have had help from sea lions in mapping the ocean floor. And the marine mammals have done their job well, capturing six different marine habitats, including algal meadows and reefs, that make up South Australia’s seabed, researchers report in a recently published study. For much of the planet’s ocean, […]
New species of skate is named, 35 years since its discovery off Madagascar
Toward the end of 1988, the Russian research vessel RV Vityaz visited a remote underwater seamount off the island of Madagascar. The researchers on board collected several specimens of sharks, skates and rays in a bid to understand the region’s marine life better. More than three decades later, scientists have confirmed that six of those […]
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