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topic: Marine Mammals
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Togo cosponsors proposal to review commercial whaling ban
Togo is cosponsoring a proposal to review commercial whaling quotas, drawing criticism from whale conservation groups. The draft resolution was submitted for discussion at the upcoming 70th meeting of the International Whaling Commission (IWC), which will be held Sept. 27 to Oct. 2. Togo was the only African nation to support the proposal, which was […]
Scientists use satellites to track whale strandings in remote places from space
- In the early 2000s, attempts to track cetaceans from space yielded only unidentifiable dark blobs; now, very high-resolution satellite imagery allows researchers to pinpoint specific whale species from orbit.
- This optical satellite technology provides access to remote parts of the world’s oceans, helping scientists establish vital baseline data on whale mortality trends, sea surface temperatures and ocean currents.
- Researchers emphasize that satellites will supplement, not replace, traditional field-work, as data quality remains vulnerable to environmental limitations, including cloud cover and heavy winds, and to satellite availability.
- Scientists are building global networks to improve consistency in data collection and are advocating for increased access to satellite data to better understand causes of whale strandings around the world.
US environmental groups plan to sue to relist gray whales under Endangered Species Act
A group of environmental organizations announced their intent to sue the United States National Marine Fisheries Services (NMFS) for failing to consider protections for Eastern Pacific gray whales under the Endangered Species Act (ESA). Gray whales (Eschrichtius robustus) are experiencing a potentially catastrophic population decline, a sharp reversal from what had been considered a conservation […]
Antarctic krill fishery closes months early amid increasing fishing pressure
- The krill fishery in the Southern Ocean has closed more than three months early after reaching its annual catch limit of 620,000 metric tons — a precautionary quota established to prevent overfishing.
- Krill forms the foundation of the Antarctic food web, with penguins, whales, seals, fish, squid and other animals depending on the tiny shrimp-like crustacean.
- The early closure of the fishery is linked to the growth of the krill-targeting fleet, as well as to what some scientists call an “unprecedented” concentration of fishing activities in areas where krill is most abundant.
- Scientists are raising concerns about the combined impacts of overfishing and climate change on both krill and the Antarctic and Southern Ocean wildlife it nourishes.
A deadly cross over: In South Africa, rabies moves from land animals to seals
- Cape Town, South Africa, has recorded 135 incidents of aggressive seal behavior toward humans since September 2021, including injuries that led to hospitalizations.
- Researchers suspect the cause is rabies, a disease normally associated with land animals but has leapt to Cape fur seals.
- Since May 2024, rabies cases have been confirmed in Cape fur seals along the Western Cape and Northern Cape coastlines of South Africa — the first time the virus has established itself in a marine mammal population anywhere in the world.
- Beyond attacks on humans, researchers worry whether the disease will spread to other marine mammals, as seals interact with different species.
Spain proposes 23 new marine protected areas in the Canary Islands and Mediterranean
- The proposal represents Spain’s latest effort to advance protection of 30% of its waters by 2030.
- It looks to protect 22,405 square kilometers (8,651 square miles) of marine waters, primarily in the eastern North Atlantic Ocean around the Canary Islands, as well as four sites in the Mediterranean Sea.
- Conservation groups have raised concerns in recent years about the state of Spain’s marine protected areas, highlighting a significant discrepancy between areas designated “on paper” and those that are subject to effective protection.
Dolphin mother and calf observed using shells to catch fish in Australia
A small population of dolphins in Shark Bay in Western Australia have a documented history of using an unusual tool to help them catch fish: Large, empty snail shells. For the first time, scientists have now observed the same behavior in a different dolphin population on Australia’s east coast. Researchers even filmed a baby dolphin […]
Iceland to deport antiwhaling protest ship’s crew after they interfered with whale hunt
- Authorities in Iceland have detained an antiwhaling protest vessel and its crew after it interfered with a hunt by Hvalur hf., the country’s last whaling company.
- The M/V Bandero, operated by the Captain Paul Watson Foundation, and its 21 crew members were being held in Reykjavík; authorities have ordered the crew’s deportation, with five Americans deported on August 6.
- Iceland is one of the few countries in the world that still commercially hunts whales, with a quota this year of 150 fin whales; in 2023, Hvalur hf. killed 24 fin whales, and the year before, 148. As of Aug 7, at least 35 fin whales have been killed, according to the foundation.
- The fin whale is one of the world’s largest animals and is classified as vulnerable on the IUCN Red List, with about 100,000 mature individuals remaining worldwide.
As Canada’s captive belugas arrive in the US, questions linger about their future
- Thirteen beluga whales from a pod of about 30 languishing in the shuttered Canadian marine park Marineland arrived in the U.S., six of them on July 21, and seven on August 3, as part of an emergency rescue of these captive cetaceans.
- The transfers come after nearly a year of jostling between the Canadian government and Marineland about the belugas’ future, amid threats of euthanasia and disagreements over where the cetaceans should be housed.
- Earlier this year, several U.S. aquariums drew up an emergency rescue plan to transfer these cetaceans to four U.S. facilities.
- Conservationists say the U.S. move leaves questions unanswered about the cetaceans’ future, including if they would be used for entertainment or bred in captivity — both outlawed in Canada since 2019.
What happens after a whale strands on a Mumbai beach?
On the morning of June 27, a 7.6-meter (25-foot) blue whale calf washed ashore on a busy beach in Mumbai, India’s financial capital and the capital of Maharashtra state. Whale strandings are rare along the Maharashtra coast, so Mongabay spoke with experts to find out what happened next. “Each stranding incident is a totally unexpected […]
Gray whales are suffering catastrophic population decline in the Pacific Ocean
Gray whales are experiencing a potentially catastrophic population decline, a sharp reversal from what had been considered a conservation success. As of July 6, 2026, there were 145 gray whale (Eschrichtius robustus) stranding deaths in the Pacific, according to National Oceanic and Atmospheric Administration (NOAA) data. The environmental non-profit Public Employees for Environmental Responsibility (PEER) […]
Seeking swordfish, catching dolphins and whales: EU pushes to rein in driftnets
- Environmental groups continue to allege widespread illegal use of driftnets in the Mediterranean Sea.
- The use of driftnets — fishing nets, sometimes kilometers long, that drift with the ocean currents — is prohibited to catch large pelagic species like swordfish.
- Highlighting that current measures lack adequate definitions and enforcement provisions, the European Union presented a proposal to strengthen international restrictions on driftnet fishing at the International Commission for the Conservation of Atlantic Tunas technical meeting in June.
- Morocco, one of the countries most criticized for the use of illegal large driftnets, has emerged as a strong supporter of the proposal.
Listen to whales to improve connection, care & ocean health (commentary)
- From establishing conservation protections to developing tools to understand whale communication, the work of marine biologist David Gruber and oceanographer Sylvia Earle is grounded in the same belief: understanding leads to connection and care.
- While there have been remarkable conservation successes across the five decades of their efforts, the overall trend is clear: the health of the ocean is declining faster than efforts to protect it.
- “We still have an opportunity to leave future generations an ocean filled with life, wonder, and possibility. But this window is closing. The choices we make in the next decade will firmly shape the future of marine ecosystems,” the co-authors argue.
- This article is a commentary. The views expressed are those of the authors, not necessarily of Mongabay.
Sightings off Southern Africa suggest blue and fin whales may be rebounding
Sightings of blue whales and fin whales off Southern Africa’s Atlantic coast have increased in recent years, according to a newly published study. This could signal recovery of the marine mammals after being virtually eliminated from the area by commercial whaling in the 20th century, the study authors say. Scientists estimate around 350,000 Antarctic blue […]
Sightings of humpback whales surge in Rio de Janeiro, fueling demand for whale-watching trips
RIO DE JANEIRO (AP) — Sightings of humpback whales off Rio de Janeiro’s coast are surging as they recover from decimation due to commercial whaling, prompting an acceleration in the demand for whale-watching excursions to spot the huge marine creatures during their annual migration. The species’ population has jumped from around 2,000 to around 35,000 […]
An island community in Thailand works to protect and revive its dugongs
Once a lush field of green, the seagrass meadows surrounding Thailand’s Koh Libong are now largely barren stretches of sand, devastating the island’s iconic dugong population, reports Mongabay’s Carolyn Cowan. Koh Libong’s seagrass meadows were once Thailand’s largest, and a critical coastal habitat that is protected nationally. Yet, between 2020 and 2024, seagrass cover in […]
US moves to allow commercial fishing in Pacific marine protected areas
On June 11, U.S. President Donald Trump signed an executive proclamation to open additional commercial fishing grounds in remote areas of the Pacific. The proclamation says restoring access to these areas “will promote economic opportunity.” However, local groups warn it will open the door to overfishing in a crucial marine habitat and sacred cultural site. […]
French Polynesia expands ocean protections to 30% of its waters
The government of French Polynesia announced it is expanding the extent of ocean where extractive industries like seabed mining and industrial fishing will not be allowed. With this move, 30% of French Polynesia’s waters will now be fully protected. Last year on June 8, French Polynesia, a French overseas territory, established the Tainui Atea marine […]
Protect Antarctic krill to preserve the health of Africa’s coastal communities (commentary)
- African leaders must demand an end to industrial krill fishing in the Southern Ocean while at the Our Ocean Conference this week, before irreversible damage is done, Angola’s Minister of Fisheries and Marine Resources warns in a new op-ed at Mongabay.
- Antarctica and the ocean systems upon which Africa depends rely on krill — the tiny crustacean that gathers in huge swarms and which whales, seals, penguins and fish species feast upon — so letting business interests dictate how the base of this important food chain, that millions of people also benefit from, is irresponsible, she writes.
- “What happens in Antarctica affects the global ocean. That means the whales migrating along African shores, the resilience of our coastal communities, and the health and livelihoods of our coastal communities,” the minister argues. “Please join me in calling for an end to krill fishing now.”
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Africa’s community-led marine organizations on which 30×30 depends
- More than 5,000 delegates are gathering in the Kenyan coastal city of Mombasa for a major global conference on the future of the oceans.
- At the heart of the discussions is ocean governance and the global push to meet the 30×30 target — protecting 30% of the world’s land, freshwater and oceans by 2030.
- But meeting that goal will depend not only on governments and international pledges, but also on community-led organizations doing the difficult work of conserving fragile marine ecosystems.
- Across Africa and around the world, thousands of grassroots groups are carrying out this work, often far from the spotlight, helping shape ocean conservation and blue economies that support local livelihoods. Mongabay spoke with representatives of four such organizations working across the continent from the Western Indian Ocean to Africa’s Atlantic coast.
How courtrooms are deciding the fate of whales
Legal courtrooms are becoming a new battleground in the fight to save whales. In New Zealand, the proposed Tohorā Oranga Bill could recognize whales as legal persons — building on Pacific Indigenous efforts like He Whakaputanga Moana. This push to obtain legal rights for whales is part of the fast-growing ‘Rights of Nature’ movement. But […]
Pilot whales can’t hear each other over ship noise in Strait of Gibraltar, study finds
The rumble of ship traffic is drowning out the calls of long-finned pilot whales and potentially other marine species in the Strait of Gibraltar, a narrow strip of water between Morocco and Spain that separates the Atlantic Ocean from the Mediterranean Sea. Researchers who investigated this looked at near and long-distance communication between long-finned pilot […]
A year on, Australia’s biggest harmful algal bloom continues to wreak havoc
- The largest and longest-lasting harmful algal bloom in Australia’s history, which started in early 2025, has potentially affected more than 20,000 square kilometers of ocean waters and about a third of the coasts in the state of South Australia.
- The algal bloom has devastated marine ecosystems and caused significant economic losses in the local fishing, aquaculture and tourism industries.
- As officials, researchers and communities grapple with its ecological, health and social impacts, the bloom has exposed a lack of preparedness at all levels of government for responding to future HABs.
Whale strike risk rises as international shipping reroutes around South Africa
- In a new study, researchers analyzed the link between increased shipping traffic in South African waters and collisions between whales and ships.
- The research covers six whale species occurring in near- and offshore waters and shows significant spatial overlap between whale habitats and shipping traffic, making action urgent.
- The South African government, the International Maritime Organization and scientists are working together to develop measures aimed at reducing whale strikes.
- Currently, rerouting vessel traffic is not possible as too much data are missing to map the spatial distribution of whales that occur farther offshore.
Pilot project in San Francisco Bay aims to help ships avoid gray whales
Starting in 2018, gray whales began regularly stopping in California’s San Francisco Bay, where they are vulnerable to ship strikes in one of the busiest ports in the United States. In response, researchers have deployed a monitoring network of thermal cameras and AI software to alert ships when whales are present in the bay to […]
Canadian government endorses a plan to move whales from shuttered Marineland park to US and Spain
TORONTO (AP) — Canada’s government endorsed a plan Wednesday to move the last remaining captive whales from a shuttered theme park in Ontario to aquariums in the United States and Spain — a plan that could save them from mass euthanasia if the deal goes through. There are 30 belugas and four dolphins left in the Marineland park […]
France to send its last captive orcas to marine park, not sanctuary
- In May, the French government announced plans to send its last captive cetaceans — two orcas and 12 dolphins — to zoos and entertainment parks in Spain, sparking an outcry from animal welfare advocates.
- France had previously considered sending the marine mammals to an under-construction sanctuary in Canada, but decided to act more quickly because of deteriorating conditions at the shuttered Marineland Antibes park, where the animals are currently housed, according to a French official.
- The dolphins will be shifted to two marine parks in Valencia and Málaga, while the orcas — a mother and son — will be transported to Loro Parque, a zoo and entertainment park in Tenerife, one of Spain’s Canary Islands.
- Animal welfare organizations have criticized the decision, saying they believe the orcas will be used in Loro Parque’s marine shows and bred, which would go against France’s law banning the keeping and breeding of cetaceans for entertainment.
Amazon oil drilling plan excludes unique hybrid manatees too big for rescue
- Brazil’s environmental agency approved oil drilling off the mouth of the Amazon River, even though oil company Petrobras considers it “unfeasible” to rescue large animals like manatees in the event of an oil spill.
- Potential oil spills threaten a unique hybrid manatee population perfectly suited to live in the Amazon River mouth area.
- A simulation testing Petrobras’s wildlife rescue plan showed lack of basic supplies and boat accidents.
- The project is part of a massive new oil frontier in the Equatorial Margin estimated to hold 10 billion barrels of oil.
Hidden ‘bubble cave’ may help world’s rarest seal steer clear of humans: Study
On the Greek islet of Formicula, researchers have found rare Mediterranean monk seals will take refuge in an air-filled “bubble cave,” according to a recent study. This type of hidden chamber, accessible via underwater passages, allows the seals to breathe, and possibly hide from tourists, the researchers said. Mediterranean monk seals (Monachus monachus), the world’s […]
West Asia conflict brings Norwegian marine research vessel back to Sri Lanka
- The West Asia conflict unexpectedly redirected Norway’s state-of-the-arts Fridtjof Nansen research vessel to Sri Lanka after a planned survey in Oman was disrupted.
- The month-long expedition surveyed Sri Lanka’s marine ecosystems, fish stocks biodiversity and ocean conditions using advanced acoustic and oceanographic methods.
- Scientists documented around 800 species, including about 125 that may be new records from Sri Lankan waters, along with a few species that could be new to science, pending further detailed analysis of the collected specimens.
- The survey revived a previously cancelled mission due to approval delays and offered Sri Lankan researchers some rare hands-on training aboard the United Nations-flagged research vessel.
AI listens for endangered orcas to help reduce underwater noise exposure
Artificial intelligence is listening to orca calls in real time and helping to reduce their exposure to underwater noise. The effort is focused on an endangered orca subspecies in the Salish Sea, off the coasts of the northwestern U.S. and western Canada, reports Mongabay writer Abhishyant Kidangoor. The southern resident orcas (Orcinus orca ater), made […]
Thai island community rallies to protect beloved dugongs, revive declining seagrass
- Seagrass beds around the island of Koh Libong in Thailand’s Andaman Sea have died off in recent years, part of wider nationwide declines scientists say have multiple, complex causes.
- The seagrass shortage has devastated the island’s once famed dugong population, jeopardizing tourism businesses and impacting the island community who have long protected them.
- Locals frustrated by slow government seagrass recovery plans are working with researchers and conservation groups to build citizen science skills and trial seagrass restoration techniques.
- Signs of hope are emerging, with recent surveys recording more dugongs in local waters, prompting local leaders to call for increased public awareness and enforcement of protections.
China and Norway push to increase krill harvests around Antarctica
- In Antarctic waters, an international fishery targets krill, shrimp-like crustaceans that form massive schools and support the continent’s iconic wildlife. Krill meal and oil is used primarily in the production of aquaculture feed, followed by pet food and human dietary supplements.
- China and Norway are working to expand the Southern Ocean krill fishery, promoting a new management system for the fishery that would increase harvests while also establishing a long-sought marine protected area.
- The two countries are also continuing to support their krill fleets politically and financially, while adding vessels to increase harvest capacity.
- Meanwhile, several NGOs have recently stepped up their campaigns against krill fishing, arguing that the krill fleet competes for food with Antarctic wildlife species already struggling with climate change and reduced food availability such as emperor penguins and Antarctic fur seals that have both recently been declared endangered.
The Southern Ocean is key to our planet’s future & we have a chance to protect it this year (commentary)
- The wildlife-rich Southern Ocean is not simply another stretch of water in need of protection: just one part of it — the Antarctic Peninsula — is home to roughly a third of the global krill population, which sustains large populations of whales, penguins, seals, seabirds, fish and more.
- The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is responsible for governing these waters, and the U.K. is set to chair its pivotal 45th annual meeting this year.
- This is an opportunity to act on Southern Ocean conservation, a new op-ed by former U.K. environment minister Zac Goldsmith argues, but that’s not all: “It would also send a powerful signal, at a time when multilateralism is under strain, that countries can still come together around shared values and act for the global good,” he writes.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Arabian Gulf’s fragile marine ecosystem threatened by current crisis (commentary)
- During the Iran–Iraq war of the 1980s and subsequent conflicts, large-scale oil spills and fires caused lasting environmental damage in the Arabian Gulf.
- A new commentary by United Arab Emirates special envoy of the minister of foreign affairs for nature Razan Khalifa Al Mubarak explains that recovery of impacted marine ecosystems, where it occurred, took decades, but that this progress is now threatened by the new conflict along the gulf.
- “What is at stake today is not only the repetition of past damage, but its amplification across interconnected systems,” she writes in arguing for an end to the current conflict.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Dangerous arsenic levels detected in Thailand’s Mekong mainstream for first time
- Thai authorities have detected dangerous levels of arsenic contamination in sediment from the Mekong River mainstream and three of its tributaries in the country’s north.
- The contamination has been widely linked to a surge in unregulated mining, including for rare earth minerals, upstream in Myanmar’s Shan state.
- Experts warn that toxic heavy metals could threaten aquatic ecosystems, fisheries and the livelihoods of millions of people who depend on the Mekong Basin.
- Regional coordination and monitoring remain limited, with the Mekong River Commission lacking authority over key upstream areas in Myanmar and China.
A baby boom for North Atlantic right whales, but extinction still a threat
Calving season for the critically endangered North Atlantic right whale has come to a close with 23 new baby whales, the most calves born in a single year since 2009. Part of the baby boom during the winter calving season can be attributed to females giving birth at closer intervals than in years past: 18 […]
Iceland plans to resume whale hunting this summer
Icelandic commercial whaling company Hvalur hf. plans to resume whale hunting this summer, following a two-year pause in commercial operations. In 2024, the Icelandic government issued the company a five-year license allowing it to catch up to 209 fin whales (Balaenoptera physalus) annually. However, Hvalur hf. didn’t hunt any whales in 2024 or 2025. Iceland’s […]
Endangered whale protections may be delayed to 2035 under Trump-backed plan
PORTLAND, Maine (AP) — For roughly 380 right whales left in the North Atlantic, which can die after getting tangled in fishing ropes or hit by ships, the Trump administration said this month it wants to delay new protections by almost a decade in favor of commercial fishing interests. The sleek black whales, which weigh as much as a […]
World’s largest shark conference is set to begin in Sri Lanka next week
- When Colombo hosts Sharks International 2026 from May 4-8, it will be the first time a global shark and ray science conference is convened in Asia, drawing global attention to the region’s fisheries and biodiversity challenges.
- The conference will bring together leading global experts, policymakers and fisheries managers to strengthen the links between science, policy and practice, particularly in regions where shark fisheries are both economically important and ecologically under pressure.
- Key discussions will revolve around methods to bridge persistent gaps between shark conservation policy and on-the-water reality, and how regulations exist in formal frameworks but fail to translate into consistent awareness and action, compliance and enforcement.
- More than one-third of shark and ray species are now threatened with extinction globally, driven by overfishing, bycatch and international demand, making improved fisheries governance and enforcement a central focus of the 2026 meeting.
Singapore to halt sourcing and breeding dolphins
Singapore’s Resorts World Sentosa will stop sourcing wild dolphins for its aquarium and is suspending its captive-breeding program, according to insiders, reports Mongabay contributor Robin Hicks. Anbarasi Boopal, former co-chief executive of Singapore animal welfare charity Animal Concerns Research and Education Society (ACRES), said this was a positive step. However, she called for transparency about […]
Chile’s plan to protect another 10% of its ocean is stalled by the new government
The expansion of two vast Pacific marine parks near Chile has been suspended for six weeks, leaving protections for around 337,000 square kilometers (130,000 square miles) of ocean in limbo. Former President Gabriel Boric signed a decree creating marine parks Juan Fernández II and Nazca-Desventuradas II on March 10, his last day in office. Together […]
AI tool listens for endangered orcas in real time to reduce human disturbance
- An AI initiative is listening to southern resident orcas in real-time to help them steer clear of vessels and noisy coastal construction.
- OrcaHello builds on a network of underwater microphones to detect orcas and push out alerts that have helped pause coastal construction and redirect boat traffic as the orcas pass by.
- Southern resident orcas are considered an endangered subspecies, with only 76 remaining individuals.
- Major threats to the species include a decline in their food sources, primarily Chinook salmon, along with noise pollution and vessel traffic.
Drones aid dugong conservation as threats mount across their range
- Drone technology is revealing new information about the elusive dugong, a marine herbivore classified as globally vulnerable but already extinct in parts of its range.
- Scientists are using drones to improve estimates of dugong numbers and conduct noninvasive health checks.
- Dugongs feed exclusively on seagrass meadows, where their foraging helps to maintain these important carbon sinks.
- Researchers are highlighting the need to link efforts to conserve seagrass meadows with protecting dugongs.
San Francisco Bay emerges as high-risk area for migrating gray whales
Gray whales have one of the longest known migrations of any mammal — from the Arctic near Alaska, to the lagoons of Baja Mexico, where they mate and give birth. This annual migration, longer than 19,000 kilometers (12,000 miles), has been altered by climate change, with profound consequences for the 15-meter (50-foot) mammals. Since 2016, […]
Antarctic fur seals now endangered as climate change reduces krill for pups
Antarctic fur seals are the smallest of the polar seals and live almost exclusively on the island of South Georgia. The latest assessment by the IUCN Red List of Threatened Species, the global conservation authority, upgraded fur seal extinction threat from least concern to endangered. The last assessment was carried out in 2014. Recent research […]
Orcas never seen before in Seattle delight whale watchers with a visit
Seattle (AP) — When tourists travel to Seattle, it’s common to take in the Space Needle and the downtown skyline from Puget Sound. It’s an itinerary that a newly arrived pod of killer whales appears to be following too. Three orcas that had not previously been recorded in the Seattle area have delighted whale watchers with several […]
Singapore resort said to halt controversial dolphin sourcing, breeding
- Singapore’s Resorts World Sentosa is to end sourcing dolphins from the wild and has suspended a captive breeding program, according to sources.
- The company is assembling a team of experts to decide the future of more than 20 Indo-Pacific bottlenose dolphins, most of which were captured from the Solomon Islands in 2008 and 2009.
- The resort has maintained the dolphins are well cared for and the exhibit at Singapore’s Oceanarium serves educational and conservation purposes.
- Experts say that rehabilitation and release of the dolphins is possible, with transfer to a natural sea pen the first step for assessment.
A stranded whale in Germany’s Baltic Sea weakens as hopes of its return to the Atlantic fade
A stranded humpback whale in Germany’s Baltic Sea looks weaker, and experts fear it won’t be able to find its way back to the Atlantic despite several attempts at its rescue this week. A 500-meter (yards) restricted area was enforced around the whale so it could get some rest and hopefully free itself, officials said Sunday in a […]
Family and friends help sperm whale mother and newborn during birth
With the notable exception of humans, most mammals give birth alone. But in July 2023, researchers in the Caribbean witnessed something extraordinary: sperm whales not only attending a birth but actively helping both mother and newborn. Some of the whales present were not even related to the mother, known as Rounder. “Kinship barriers dissolved,” notes […]
On Manatee Appreciation Day, remember these gentle giants who protect aquatic ecosystems (commentary)
- Slow-moving, peaceful and curious, manatees quietly maintain the health and balance of aquatic ecosystems, from rivers to bays and coasts worldwide.
- Manatee Appreciation Day is observed annually on the last Wednesday of March, and it’s a good time to remember why these animals matter, and the people who have dedicated their lives to protecting them.
- “The gentle giants of our oceans have survived for millions of years. Whether they survive the next century depends on all of us,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
Mass pilot whale stranding in Indonesia raises questions about ocean health
Villagers in central Indonesia rescued 34 short-finned pilot whales following a mass stranding on March 9, but despite their overnight efforts were unable to save 21 others. Mongabay Indonesia’s Ebed De Rosary reports that residents first discovered the pod in the shallow waters off Deranitan village, in East Nusa Tenggara province, at approximately 3:30 p.m. […]
Belugas facing euthanasia at shuttered Canada theme park may find new homes in US
- In August 2025, Canada’s only entertainment park with cetaceans, Marineland of Canada, closed for good, prompting concern about the fate of 30 beluga whales and four dolphins remaining at the facility.
- After a plan to transfer them to a theme park in China was blocked by the Canadian government, Marineland called for euthanizing the animals. The Canadian government has now conditionally approved their possible transfer to four U.S. institutions.
- Keeping highly intelligent and social creatures in concrete-lined tanks adversely affects their health and well-being, experts say.
- With changing public perceptions and a growing number of countries, including Canada, banning the keeping and breeding of whales and dolphins, conservationists are calling for alternatives to house the more than 3,700 cetaceans in captivity worldwide, including building seaside sanctuaries.
Antarctic krill sustainability label questioned
The Marine Stewardship Council (MSC) recently released a draft report for its fourth recertification of krill fishing in Antarctica by Aker QRILL Company. The certification would allow Aker to put an MSC label on its products that tells consumers the krill came from a sustainable well-managed fishery. However, the Antarctic and Southern Ocean Coalition (ASOC), […]
Proposed shark net near Club Med resort in South Africa sparks conservation clash
- A proposal by municipal authorities in South Africa’s KwaZulu-Natal province to install shark nets at a public beach has triggered a public debate about the need to install gear that’s highly lethal to sharks and other marine life, and raised questions about its legality.
- The proposal, which authorities say will protect beachgoers from shark attacks, was made in anticipation of increased visitor numbers to Tinley Manor Beach once a new Club Med resort opens in the area later this year.
- Some scientists and environmentalists argue that shark nets and drum lines are outdated as they cull and kill nontarget species indiscriminately, including those protected under South African law.
- South Africa’s Department of Forestry, Fisheries and the Environment said it’s considering whether installing the net should trigger an environmental impact assessment. Some experts also question the legality of existing nets.
Climate change is slowing southern right whale birth rate, 33-year study finds
- A new 33-year study finds that southern right whales off Australia are having calves less often, with the average time between births rising from 3.4 to 4.1 years since 2015, a trend researchers link to climate-driven changes in the Southern Ocean.
- Shrinking Antarctic sea ice and warming waters are reducing the availability of krill and copepods, the whales’ main food sources, leaving females struggling to rebuild their energy after nursing and delaying their next pregnancy.
- The reproductive slowdown is not unique to Australia, with similar declines documented in southern right whale populations off South Africa and Argentina, raising concerns for a species still recovering from near-extinction due to commercial whaling.
- Researchers are calling for expanded marine protected areas, stricter management of Antarctic krill fisheries, and urgent action on climate change to protect the species.
Penguins are breeding much earlier in a warming Antarctic, study finds
- Penguins on the Antarctic peninsula and surrounding islands are breeding substantially earlier in the year than just a decade ago, according to new research.
- The study used remote cameras to track the breeding season of three penguin species across 37 colonies from 2012 to 2022.
- Gentoo penguins advanced their breeding season by about 13 days over the 10-year period, while Adélie and chinstrap penguins each shifted breeding by about 10 days.
- Researchers don’t yet know how the changes are impacting penguins, but it could lead to a mismatch in food availability for chicks or create competition among species for food and other resources.
Azores dodges proposal to overturn no-fishing zones in its giant new MPA network
- A law establishing the Azores Marine Protected Areas Network was approved in October 2024 and took effect recently, on Jan. 1 this year.
- The network now safeguards 30% of Azorean waters, 287,000 square kilometers of seascape sheltering a rich array of marine life, and makes up the largest MPA network in the North Atlantic Ocean.
- Not two weeks later, on Jan. 15, the Azores Parliament voted on a measure that upholds a core provision of the MPA network, after it came under fire in recent months: No fishing inside the fully protected areas, which constitute half the vast network.
- Conservationists expressed satisfaction, broadly, with the agreement, but fishers’ groups expressed disappointment.
Scientists discover a new whale highway after tagging a pygmy blue whale by drone
- Scientists in Indonesia have tagged a pygmy blue whale for the first time using a drone.
- Data from the tag revealed a previously unknown path used by the species on its southern migration from Indonesia to the west coast of Australia.
- The biggest threats to the pygmy blue whale include ship strikes in busy shipping lanes, ocean noise pollution, and climate change.
- A team from Timor-Leste will now repeat the drone tagging protocol in their waters.
PFAS ‘forever chemicals’ are falling in North Atlantic whales after phaseout
Levels of some of the most persistent industrial chemicals in the North Atlantic appear to be falling, at least in one unlikely place. Long-finned pilot whales (Globicephala melas) now carry markedly lower concentrations of several legacy PFAS compounds than they did a decade ago, according to a new multidecade analysis of tissue samples from the […]
US ocean regulator faces criticism over changes to right whale protection rule
PORTLAND, Maine (AP) — The U.S.’s ocean regulator plans to make industry-friendly changes to a longstanding rule designed to protect vanishing whales, prompting criticism from environmental groups who cite the recent death of an endangered whale. The rules protect the North Atlantic right whale, which numbers less than 400 and lives off the East Coast. The […]
A 410-pound manatee rescued from a Florida storm drain is recovering at SeaWorld Orlando
FORT LAUDERDALE, Fla. (AP) — A manatee that got stuck in a Florida storm drain while seeking warmer waters is on the mend at SeaWorld Orlando after a coordinated rescue effort. Multiple fire rescue units and officials from the Florida Fish and Wildlife Conservation Commission, the University of Florida and even Jack’s Wrecker Service were brought in […]
Mexico considers shrinking protected areas for endangered vaquita porpoise
- Officials in Mexico are considering shrinking a protected area in the Gulf of California, the stretch of water between Baja California and mainland Mexico where the vaquita (Phocoena sinus) is endemic.
- The vaquita is the world’s smallest porpoise and the most endangered marine mammal, with only an estimated 10 individuals remaining.
- The proposal, not yet public but reviewed by Mongabay, would reduce a gillnet prohibition zone and allow traffic through a zero-tolerance area where all vessel activity is currently banned.
- The Ministry of Environment and Natural Resources and other agencies are developing the new regulations, but it’s unclear when they will be implemented.
Scientists call for ethics rules as AI fuels animal communication research
Researchers have proposed a new ethical framework to regulate emerging technologies, such as artificial intelligence and machine learning, used to decode animal communication, Ana Cristina Alvarado reports for Mongabay Latam. The proposed guidelines, known as the PEPP Framework, which stands for Prepare, Engage, Prevent and Protect, lay out the principles for studying animal communication responsibly. […]
Global moratorium on whaling, a ‘defining moment,’ turns 40
The global moratorium on commercial whaling reached its 40-year mark in January, during which time it’s been credited with helping Earth’s largest creatures recover from centuries of hunting pressure. The moratorium went into effect in January 1986 following a 1982 vote by member countries of the International Whaling Commission. Though a few countries have continued […]
Lower levels of PFAS ‘forever chemicals’ in North Atlantic whales show regulations work: Study
- North Atlantic pilot whales now have 60% lower concentrations of some legacy PFAS (forever chemicals) than they did a decade ago, according to a Harvard University-led study.
- This represents roughly a decade-long lag after major manufacturers began phasing out production of the most problematic legacy PFAS in the early 2000s due to toxicity concerns.
- The study also reveals a troubling pattern known as “regrettable substitution,” where banned harmful substances are replaced by similar chemicals that cause comparable harm.
- The findings contrast with trends in human blood samples, where total organofluorine levels have remained stable or even increased despite declining concentrations of legacy PFAS, suggesting newer replacement PFAS may be accumulating primarily on land.
Division’s final journey
- Division, a four-year-old North Atlantic right whale known as Catalog #5217, was found dead off the coast of North Carolina in January after weeks in failing health caused by a severe fishing-gear entanglement that responders were unable to fully remove.
- Born in 2021 to a female named Silt, Division had already survived three earlier entanglements, a reminder of how early and repeatedly right whales now encounter life-threatening human hazards.
- His death comes amid fragile signs of hope for the species, with fifteen calves recorded this winter in a population of roughly 380 whales, far short of the numbers needed for recovery.
- Division’s short life illustrates how the threats facing right whales are not abstract but cumulative and prolonged, shaping lifespans measured in decades and placing the species’ future in the balance of decisions made far from the water.
Ocean set ‘alarming’ new temperature record in 2025
- Ocean temperatures set a record high in 2025, according to a new study.
- The authors found that the heat content of the ocean increased by about 23 zettajoules between 2024 and 2025. That’s roughly the equivalent of 210 times humanity’s annual electricity generation.
- The ocean has warmed significantly in recent decades largely because it absorbs roughly 90% of the excess heat trapped in the atmosphere by human-caused greenhouse gases. That makes the ocean a key indicator of global warming.
- Warming ocean temperatures contribute to sea-level rise and to extreme weather events, which were frequent in 2025.
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 […]
North Atlantic right whale birth rate is up but extinction still looms
PORTLAND, Maine (AP) — One of the world’s rarest whale species is having more babies this year than in some recent seasons, but experts say many more young are needed to help stave off the possibility of extinction. The North Atlantic right whale’s population numbers an estimated 384 animals and is slowly rising after several years of […]
7 hopeful wildlife sightings that researchers celebrated in 2025
Once in a while, an animal shows up where it’s least expected, including places from where it was thought to have gone extinct. These rare sightings bring hope — but also fresh concerns. These are some of the wildlife sightings Mongabay reported on in 2025. Colossal squid recorded for the first time in its deep-sea […]
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.
A rare right whale spotted off Ireland resurfaces near Boston
In a rare sighting, a critically endangered North Atlantic right whale, first photographed in 2024 off the coast of Ireland, was recently reidentified near Boston, U.S., on Nov. 19. This is the first time a North Atlantic right whale (Eubalaena glacialis) was initially documented in Irish waters; before that, it was unknown to scientists. The […]
Elephant seals can recognize the voices of their rivals
Elephant seals spend most of their lives at sea, returning to shore just twice every year to molt and breed. The breeding season typically includes males weighing thousands of kilograms violently clashing with each other to compete for females. New research finds the hefty mammals remember the voices of rivals they’ve met before and retreat […]
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 […]
A rare bright spot for whales: Decades of conservation pay off for endangered population in Canada
- Northern bottlenose whale populations have struggled to rebound, even though commercial whaling was outlawed in their habitats more than 50 years ago.
- Long-term monitoring shows that one population of the species has begun to recover since their year-round habitat, a submarine canyon off Canada’s east coast known as the Gully, became a Marine Protected Area in 2004.
- The Gully MPA provides a rare marine conservation success story, but protection for marine mammals that migrate is more complex.
‘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.
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.
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.
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 […]
Nickel mining damage near UNESCO site stirs outrage in southern Philippines
- A recent survey by the Davao Oriental provincial government engineering office revealed that a strip mine operating in the province had scraped bare about 200 hectares of forestland.
- After the survey, the provincial governor said the province would order the Pujada nickel mine to cease operations.
- The mine is within 10 kilometers of two protected areas: the Mount Hamiguitan Range Wildlife Sanctuary, a UNESCO World Heritage Site; and the Pujada Bay, a nationally protected seascape.
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.
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.
Ghost nets entangling turtles, marine life in Sri Lanka’s waters
In Sri Lankan waters, there’s a growing problem of ghost nets that are entangling sea turtles, fish, dolphins and seabirds, reports contributor Malaka Rodrigo for Mongabay. “Ghost nets” are fishing gear that have either been abandoned, lost or discarded into the sea. As these drift with the ocean currents, they continue to trap marine animals […]
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.
Drone surveys offer early warnings on whale health and survival
- Scientists have deployed drones and are using photogrammetry to determine how climate change is impacting the health of whale populations.
- By collecting the measurements of whales, scientists are able to track how environmental factors impact the growth and reproduction of right whales off the coast of New England and orcas in Alaska.
- Using the data, they found that a marine heat wave in 2013 reversed the revival of the population in Alaska that had plummeted after the Exxon Valdez oil spill in 1989; they also noticed that the whales didn’t grow as much as they should have.
- The method also enabled scientists to detect pregnant whales well in advance, allowing them to monitor if the pregnancy was successful or not.
Abandoning Antarctic krill management measure threatens conservation progress (commentary)
- Until 2024, spatial limits across four sub-areas of the Antarctic Peninsula region had reduced the risk of concentrated fishing in areas preferred by whales, seals and penguins.
- The Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR) had taken an ecosystem-based approach, recognizing that effects of fishing can ripple through ecosystems; but with the recent lapse of its Conservation Measure 51-07, ships can now concentrate their fishing efforts in key wildlife foraging hotspots.
- This October, as delegates gather to discuss CCAMLR priorities, the authors of a new commentary argue that, “At stake is more than a fishing rule, but also the commitment to manage fisheries proactively, rather than reactively.”
- This post is a commentary. The views expressed are those of the authors, not necessarily of Mongabay.
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.
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 […]
Once again, an endangered orca in Washington state is seen carrying a dead calf
EASTSOUND, Wash. (AP) — Once again, an endangered orca in Washington state has been seen carrying her dead newborn calf in an apparent effort to revive it. Researchers with the Center for Whale Research, SeaDoc Society and San Diego Zoo Wildlife Alliance said they received reports on Friday that the whale — identified as J36 […]
On World Dolphin Day, spotlight falls on threats to dolphins worldwide
September 12 is World Dolphin Day. Marine conservation and advocacy nonprofit Sea Shepherd created the day in 2022 to remember that dolphins, among the most intelligent animals on Earth, are under threat and need protection. That date, Sept. 12, was chosen to memorialize the massacre of 1,428 Atlantic white-sided dolphins (Leucopleurus acutus) on the Faroe […]
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.
Argentina pushes pipeline exports through protected Patagonian waters
- In Argentina, the construction of an oil port and a liquefied natural gas (LNG) terminal for ships threatens one of the most biodiverse areas in the southwestern Atlantic.
- The law that protected the area from these types of projects was amended without prior consultation in 2022.
- Oil spills, rising water temperatures, and ship strikes on the thriving whale population are among the greatest threats highlighted by critics.
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 […]
Krill fishery in Antarctica shut down after record catch triggers unprecedented early closure
MIAMI (AP) — Officials have shut down early the remote krill fishery near Antarctica after trawling for the tiny crustacean — a vital food source for whales that also helps fight climate change — exceeded the seasonal catch limit for the first time. The unprecedented early closure of the fishery follows a report by The Associated Press last week […]
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.
James ‘Buddy’ Powell, defender of manatees, died on July 19, aged 70
In 1967, on the spring-fed waters of Florida’s Crystal River, a teenager named James “Buddy” Powell encountered a stranger in a rowboat. The man, a Cornell University graduate student, was looking for manatees — a species so obscure then that few had studied it in the wild. Powell, who knew the local springs better than […]
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.
Locals fear Chile’s new port project for green energy will disrupt ecosystems
- A new private port for public use near Punta Arenas, a city in southern Chile’s Magallanes and Chilean Antarctic Region, has been approved for multipurpose services, such as the development of green hydrogen and salmon industries.
- The region has recently attracted a lot of attention due to its enormous green energy potential.
- The company concerned told Mongabay that this port will reduce the need for developers of green hydrogen and other projects in the region to build their own private ports as there is currently a limited capacity.
- Environmental organizations and local residents fear the port’s construction and operations will impact marine ecosystems and boost industries that will likely cause greater environmental impacts, such as contamination from salmon farms.
Commuter traffic stops for whales on Australia’s humpback highway
PORT STEPHENS, Australia (AP) — Sydney’s harbor becomes a humpback highway in winter as the whales migrate from feeding grounds in Antarctica to breeding areas off Australia’s coast. Whale watchers are spoiled for sightings during peak traffic weeks in June and July, when 40,000 creatures the size of buses will navigate the waters of New […]
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.
Brazil manatee hunters become advocates as village turns to ecotourism
The fishing community of Barra do Mamanguape on Brazil’s northeastern coast used to be a hunting site for manatees. But today, the villagers have turned to ecotourism and are now protecting the manatees, Mongabay’s video team reported in May. The village estuary, where river meets the sea, has warm, calm waters, perfect habitat for manatees. […]
Whales still aren’t ‘eating all the fish’ (commentary)
- Estimating the amounts of krill or fish consumed by whales has long been an obsession of the proponents of industrial whaling, who argue that these amounts are too large and then use the figures as justification to hunt whales.
- However, this research is pseudoscience, a new op-ed argues, and badly misunderstands — or willingly misrepresents — established principles of marine ecology.
- “In order to counter the wild imaginings of how marine ecosystems work put forth by whalers and their bureaucratic enablers in whaling nations, new thinking is required,” the former NOAA scientist writes.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
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 […]
Alaska wolves poisoned by mercury after switching to sea otter diet
Some coastal wolves in Alaska, U.S., have toxic levels of mercury in their bodies after shifting from a terrestrial diet of deer and moose to a marine diet heavy with sea otters, new research finds. Mercury is a naturally occurring heavy metal found in the Earth’s crust. However, human activities like burning coal and fossil […]
Mongabay India wins best science podcast at Publisher Podcast Awards
Mongabay India’s 2024 podcast miniseries “Wild Frequencies” bagged the “Best Science and Medical” category at the Publisher Podcast Awards ceremony in London on June 11. The podcast is a three-episode series that tells stories of how researchers in India use the science of bioacoustics, or animal sounds, to better understand the lives of wildlife, such […]
The curse of river dolphin ‘love perfumes’ (cartoon)
Already imperiled by habitat loss, climate change and the recent incidences of droughts in the Amazon, the endangered Amazon River Dolphins have yet another curse cast upon them- the myth that the perfume made from their oil, known locally as pusanga, works as an aphrodisiac. Sold both in local markets and online, this trade threatens an […]
Climate change and shrinking Arctic sea ice threaten bowhead whales
Bowhead whales are endemic to the icy waters of the Arctic and prefer living in shallow waters near sea ice, filtering krill and tiny crustaceans called copepods for food. However, the Arctic is warming faster than any other region on Earth, and a recent study estimates that if this continues, then by 2100 the whales […]
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 […]
Signs of hope as elephant seals rebound from avian flu in remote Chilean fjord
- An outbreak of avian flu in 2023 hammered a colony of southern elephant seals in Chile’s Tierra del Fuego region, leading to a 50% decline in its population.
- But over the 2024-2025 breeding season, the colony’s population recovered, with 33 pups being born.
- An alliance between the Chilean branch of the Wildlife Conservation Society and the regional environmental department has been monitoring this particular colony for years, braving the remoteness and extreme weather at the southern tip of the Americas.
- Experts posit that the site, Jackson Bay, may serve as a natural refuge from the avian flu because it’s geographically isolated as a fjord.
Samoa’s new marine spatial plan protects 30% of the country’s ocean
- The Samoan government announced June 3 that it has enacted a law establishing a marine spatial plan to sustainably manage 100% of its ocean by 2030.
- The country has also created nine new marine protected areas that cover 30% of its ocean.
- Fishing is prohibited in the new protected areas, which include a migration route for humpback whales.
- The plan became law on May 1.
‘Satellites for Biodiversity’ upgrades with new projects and launches insight hub
The Airbus Foundation and the Connected Conservation Foundation (CCF) recently announced the winners of their “Satellites for Biodiversity” grant, which now uses higher-resolution satellite imagery to aid conservation efforts. They also launched an Ecosystem Insight Hub, which comprehensively documents the processes and findings of their grantees. The latest batch of six “Satellites for Biodiversity” awardees […]
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.
Our responsibility for cetacean conservation grows with proof of their intelligence (commentary)
- In the search for other intelligent life in our galaxy, we must look to the oceans before we turn to the stars, states the writer of a new commentary.
- In recent years, cetacean researchers have shown that whales, dolphins and porpoises live socially complex lives that require elaborate communication systems, and possibly even language.
- “If people can understand what they have in common with an animal that is seemingly so alien on the surface, it would allow for a greater extension of empathy,” and therefore greater conservation efforts, the writer argues.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Ronan the sea lion outperforms humans at keeping a steady beat, study finds
A sea lion named Ronan is better able to keep a beat than the average human, a new study finds. Such ability in animals is generally thought to be unique to humans and some birds, but Ronan’s performance challenges those assumptions, the study’s researchers say. Ronan, a California sea lion (Zalophus californianus), was born in […]
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.
Listening to whales is key to their conservation
Biological oceanographer John Ryan joins Mongabay’s podcast to discuss his team’s multiyear study that examined vocalizations of baleen whales, including blue (Balaenoptera musculus), humpback (Megaptera novaeangliae) and fin whales (Balaenoptera physalus), and how this science is critical for understanding their feeding habits, and thus informing their conservation. The study found that these whales’ songs rise […]
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.
15 years after the BP oil spill disaster, how is the Gulf of Mexico faring?
- The Deepwater Horizon disaster on April 20, 2010, was the largest offshore oil spill in U.S. history, releasing an estimated 4.9 million barrels of oil into the Gulf of Mexico over nearly three months.
- Fifteen years later, the gulf ecosystem shows a complicated picture of both resilience and lingering damage, with some species, like brown pelicans, recovering, while others, like humans, dolphins and deep-sea corals, continue to struggle with long-term health impacts.
- The disaster prompted an unprecedented legal settlement directing billions toward restoration projects, though experts debate whether these funds have been used effectively for ecosystem-scale recovery.
- Climate change remains the “800-pound gorilla in the room,” threatening the gulf’s future resilience, one expert said, with others warning that continued pressure from fossil fuel development, agricultural runoff and other threats could push the system beyond its capacity to recover.
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 […]
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., […]
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 […]
Locals debunk myths linking endangered pink river dolphins to ‘love perfumes’
A colonial-era myth about endangered pink river dolphins in the Amazon has led to a false belief that perfumes or pusangas made from their body parts are potent love potions. According to a recent Mongabay documentary, the myth has created a market for the perfumes, further endangering the dolphins. The film, released in February, follows […]
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. […]
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.
Counting whales by eavesdropping on their chatter, with help from machine learning
- Scientists have combined passive acoustic monitoring, machine-learning tools and aerial surveys to estimate the population of North Atlantic right whales in Cape Cod Bay.
- Using the method, researchers from Cornell University in the U.S. were able to estimate the daily population of the whales over a period of four months.
- While passive acoustic monitoring has helped scientists around the world detect the presence of whales, it’s often challenging to estimate population numbers from the data, especially for species like North Atlantic right whales that have highly variable call rates.
Whale songs rise and fall with food supply, study finds.
Each year, during summer and fall, large groups of baleen whales gather off the coast of California, U.S., to feast on krill and fish before heading south to breeding areas in the tropics. It’s a crucial time for whales to fatten up, and a new study suggests some whale species announce an abundance of food […]
Wild Targets
The illicit wildlife trade is one of the most lucrative black-market industries in the world, behind only drug trafficking, counterfeit goods, and human trafficking. Wild Targets is a Mongabay video series that explores the cultural beliefs behind the pervasiveness of poaching, as well as the innovative and inspiring solutions that aim to combat the trade. […]
Why is this endangered dolphin being killed to make “love perfumes”? | Wild Targets
IQUITOS, Peru – The Plight of the Pink River Dolphin is a short documentary investigating the illegal exploitation of endangered pink river dolphins in the Amazon, driven by a myth about their magical properties. The film reveals how pusangas—perfumes made from dolphin oil and body parts—are sold in markets and online, despite the species being protected […]
Amazonian manatees are gardeners of the forests, research shows (cartoon)
Confirming a previously hypothesised role of the Amazonian manatee as a gardener of the forests, biologist Michelle Guterres’ study adds another cap to the already impressive portfolio of this gentle giant. Amazonian manatees are listed ‘Vulnerable’ on the IUCN Red list because of hunting, climate change, droughts and habitat loss. Banner image: Amazonian manatees at a rescue […]
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.
Fishing boats spotted competing with whales in Antarctica for krill
Nearly all of Antarctica’s iconic wildlife, from penguins to seals and whales, depend on krill, tiny crustaceans that make up the base of the food chain. Krill are also sought after by humans, who scoop them up using massive fishing boats, potentially putting whales in danger, scientists warn. The fishing boats and whales are “going […]
Right whales can live to 130, but in North America they die young
- A new study indicates that right whales have extremely long lifespans of 130 years or more, adding to growing evidence of extreme whale longevity.
- The research draws attention to the plight of North Atlantic right whales, which are critically endangered. It found that despite their long potential lifespan, their actual lives are far shorter than those of southern right whales, a close relative.
- The authors and other experts believe North Atlantic right whales’ lives are being cut short due to threats in the “highly industrialized” waters off the eastern United States and Canada where they live; these include fishing gear, which can entangle the whales, and vessel strikes.
Road to recovery: Wild animals staging a comeback in 2024
Conservation news is often heartbreaking, with reports of dramatic biodiversity loss globally year after year. But in 2024, there were several reasons for cheer as well, with conservationists finding that certain species, once at the brink of extinction, are making a comeback. Here are five species that researchers confirmed were showing hopeful signs of recovery […]
European Commission to review Greek oil activity permits in whale habitat
The European Commission will reportedly “seek clarification” from Greece about its recent approvals for offshore oil and gas activities in areas critical for threatened whales and sea turtles. That’s according to the NGO ClientEarth, which, alongside WWF Greece and Greenpeace Greece, filed a formal complaint with the European executive body in 2023 alleging that the […]
Shipbreaking pollutes Türkiye’s coast despite European cleanup efforts
- Over the past decade, more than 2,000 ships have been dismantled at shipyards in Türkiye’s coastal town of Aliağa, one of the world’s main destinations for decommissioned vessels.
- Locals and environmentalists alike complain of rampant water and air pollution linked to shipbreaking, among other industrial activities.
- Workers’ unions and activists have also called out substandard working conditions at the yards, recording 11 deadly accidents between 2018 and 2024.
- Efforts by the European Union to promote better practices in some yards by allowing them to dismantle European ships have had a mixed effect, according to workers and experts Mongabay interviewed, encouraging some yards to improve practices without solving the pollution problem.
Hundreds of whales to be harpooned as Iceland issues new hunting licenses
- On Dec. 6, Iceland’s interim government announced it had issued five-year commercial whaling permits to hunt fin and minke whales.
- The permits, issued to domestic whaling companies Hvalur hf and Tjaldtangi, allow the hunting of 209 fin whales and 217 minke whales each year in Icelandic waters.
- The move follows recent government decisions to briefly pause whaling based on welfare concerns about using grenade-tipped harpoons for hunting, and then resume it again.
- Conservationists say the new whaling decision is a blow to marine conservation and question its timing by an interim government that’s soon due to hand over power to a coalition that isn’t pro-whaling.
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.
Andes glacier melt threatens Amazon’s rivers & intensifies droughts
- A new study found that Andean tropical glaciers have reached their lowest levels in 11,700 years, with drastic consequences for the Amazon due to the overlap of the two ecosystems.
- The findings come to light as record droughts in the Amazon in 2023 and 2024, exacerbated by climate change, have severely impacted local communities, including food insecurity and lack of access to drinking water.
- The ice loss in the Andes could reduce the water flow to the Amazon rivers by up to 20%.
- Venezuela is on the verge of becoming the first country in modern history to lose all its glaciers.
The uncertain future of Amazon river dolphins amid historic drought
- This year, the drought in Amazon rivers is already worse than in 2023, when 209 pink and grey river dolphins were found dead in Lake Tefé, in Amazonas state, largely due to overheating of the waters.
- To avoid a new tragedy, local organizations have taken action in advance, establishing emergency operations with stronger monitoring, staff training and equipment acquisition.
- However, no dolphin deaths due to heat stress have been recorded this year; instead, dozens of carcasses of aquatic mammals have appeared in Amazon lakes as a result of another sinister effect of drought: increased interactions with humans.
Colliding icebergs and chirping seals: Polar ocean sounds are reimagined in art-science collaboration
- The United Nations declared the 2020s the UN Decade of Ocean Science for Sustainable Development to highlight the need for public engagement, citizenship, and connection to harness positive change for the world’s seas.
- Art and science collaborations can make the hidden depths of the oceans come alive for people via creative pieces drawing from real marine research.
- Researchers in Germany and artists from around the world united to highlight the sounds of the polar oceans through art projects created with recordings from the Ocean Acoustics Group at the Alfred Wegener Institute.
Killer whales have found new homes in the Arctic Ocean, potentially reshaping marine ecology
- The vast ice sheets that historically kept killer whales out of the Arctic Ocean are melting as the region rapidly warms.
- Two small, genetically distinct groups of killer whales now live in the Arctic, after migrating from more southern regions of the Atlantic Ocean.
- Killer whales put pressure on the local ecosystem, including Arctic whales important to Indigenous groups.
Teamwork makes the dream work for orcas hunting world’s biggest shark
Orcas, or killer whales, are the apex predator in the ocean when they work together. A new study documents how a pod of orcas is able to hunt and kill the largest fish in the world, the whale shark (Rhincodon typus), which can be twice the size of an individual orca (Orcinus orca), though the […]
‘Old’ animals offer wisdom and stability, need protection: Study
In many animal societies, elderly individuals are critical contributors to their species’ survival, a new study has found. That’s why wildlife conservation must account for older animals, researchers say. Keller Kopf, lead author and ecologist at Charles Darwin University, Australia, told Mongabay he wanted to counter the idea that “getting old is always a bad […]
Protecting 2.6% of oceans could prevent deadly whale-ship collisions: Study
Ship strikes are a leading threat to large whales, with global shipping routes overlapping 92% of their habitats, a new study finds. But protecting whales in the most dangerous collision hotspots would require action over just 2.6% of the ocean’s surface, researchers conclude, potentially saving thousands of whales with minimal disruption to global trade. The […]
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, […]
Scientists use fake dolphin carcasses to study real dolphin strandings
Stranded dolphins can tell researchers a lot about the health of dolphin populations and potential dangers to human health. But figuring out how many wash ashore is difficult because scientists rely heavily on the public to report sightings. To better understand how and where ordinary citizens are most likely to report the beached mammals, researchers […]
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.
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.
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 […]
Northern elephant seals likely used sonar ‘dinner bell’ to find food
When eight young northern elephant seals suddenly began showing up at a deep-sea observatory, researchers were taken by surprise. Their repeated visits to the research site, otherwise a speck in the vast, dark ocean, wasn’t a chance occurrence, a new study reveals. The mammals were likely drawn to the area by the observatory’s sonar pulses. […]
Amazon lakes overheat as record drought drives dolphin deaths
Severe drought and soaring temperatures are causing lakes and rivers in the Amazon to reach dangerously high temperatures, threatening species like the Amazon river dolphin, according to a recent study’s preprint. In 2023, the Amazon experienced its worst drought in recorded history, coupled with the hottest dry season on record. The extreme climate caused the […]
Mysterious African manatees inspire a growing chorus of champions
- Cameroonian conservationist Aristide Kamla recently won the prestigious Whitely Award for his ongoing work to understand and conserve the African manatee, the least-known and understood of the world’s three manatee species.
- African manatees occur in rivers, mangroves, lagoons and coastal waters along the west coast of Africa. Difficult to see in the murky water, they’re challenging to study and conserve, and much of what we assume about them is based on knowledge of the better-known Florida manatee.
- The African manatee faces numerous threats: poaching, drowning as bycatch in fishing nets, landscape degradation, and dam construction all contribute to what’s believed to be its declining population.
- A slowly growing number of species experts are working hard to shine a light on the plight of the African manatee, in the hope that a more unified effort can change the trajectory of the African manatee’s plight in future.
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 […]
Wildlife-rich mangroves suffer as Indonesia ramps up construction of new capital
- The development of Indonesia’s new capital city on the island of Borneo has resulted in clearing of mangrove forests that are home to threatened wildlife such as proboscis monkeys and Irrawaddy dolphins.
- The government has repeatedly claimed that the Nusantara project will be “green,” but experts attribute the ongoing deforestation to a lack of planning by the developers.
- With around 3,900 proboscis monkeys, Balikpapan Bay is a stronghold for the endangered species; but the new capital city’s footprint overlaps with 41% of their habitat.
- The government agency overseeing the project insists it’s doing what it can to mitigate the impacts on wildlife and ecosystems through planning, as well as cracking down on contractors destroying the mangroves.
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, […]
Japanese ship hunts massive fin whale, country’s first in 50 years
Japanese commercial whalers recently killed their first fin whale in 50 years. The fin whale (Balaenoptera physalus), the world’s second-largest whale, after the blue whale (Balaenoptera musculus), can grow to up to 27 meters (88 feet) in length. Industrial whaling until the mid-1900s severely depleted their populations, and the species is classified as vulnerable to […]
Critically endangered North Atlantic right whale spotted near Ireland
A lone critically endangered North Atlantic right whale was recently photographed off the coast of Ireland, some 5,000 kilometers (3,100 miles) from its usual habitat in the western North Atlantic. It’s the first confirmed sighting there in several decades. There are an estimated 360 North Atlantic right whales (Eubalaena glacialis) today, living along the East […]
Anti-whaling activist Paul Watson arrested in Greenland
Prominent environmental activist Paul Watson has been arrested in Greenland, reportedly for his past interventions against Japanese whalers, according to a statement from his foundation. Watson, a Canadian-U.S. dual national, is the founder of Sea Shepherd, a U.S.-based nonprofit, marine conservation activist organization, and has been involved in several anti-whaling and anti-sealing protests in the […]
Icelandic government grants new license to whaling company to hunt 128 fin whales
- The Icelandic government has given a whaling license to commercial whaling company Hvalur for the 2024 season, allowing the company to hunt 99 vulnerable fin whales in the waters around Greenland and West Iceland and 29 around East Iceland and the Faroe Islands.
- In 2023, the government suspended Hvalur’s whaling operations due to animal welfare concerns, but the company recommenced whaling once the ban was lifted.
- The company’s license subsequently expired in 2023, but Hvalur reapplied for a license in January of this year.
- Animal welfare advocates have denounced the Icelandic government’s decision, arguing that whaling has no place in the modern world.
Indigenous Alaskans drive research in a melting arctic
- In Utqiagvik, Alaska, the Iñupiat rely on whaling and subsistence hunting for the bulk of their diet, a practice dating back thousands of years.
- Powered by mineral wealth, the Iñupiat-run North Slope Borough Department of Wildlife Management employs a collaborative team of scientists and hunters.
- Though the arctic is warming nearly four times faster than the global average, the Iñupiat are confident in their ability to adapt their practices to changing conditions.
- The Department of Wildlife Management provides a potential model for collaborations between Indigenous peoples and western researchers — with Indigenous leaders in charge of funding and resource allocation.
Education & research bring Rio’s dolphins back from the brink of extinction
- The Guiana dolphin (Sotalia guianensis) is one of the most common cetaceans in Brazil but also one of the most vulnerable, with numbers dwindling by up to 93% in the last 40 years.
- One of the worst affected regions is Guanabara Bay, in Rio de Janeiro, where Guiana dolphins face daily industrial contamination, sewage and noise pollution, causing chronic stress that leads to weakened immune systems and reproduction difficulties.
- A recently published study found high toxin concentrations in Guiana dolphins in neighboring Sepetiba Bay, which has significantly impacted the health of the population, the researchers found.
- Environmentalists are banking on research and education to help protect the species and consequently the marine environment. So far, a protected environment in Sepetiba Bay has helped stem dolphin mortality, and efforts are being made in Guanabara to clean up the bay, but more is required to restore and save the population.
Scientists collaborate to conserve the endangered Guiana Dolphins
RIO DE JANEIRO, Brazil – The Guiana dolphin (Sotalia guianensis) is one of Brazil’s most common cetaceans, yet it faces severe vulnerability, with populations declining by up to 93% over the past 40 years. Key threats to these dolphins include industrial contamination, sewage, and noise pollution. These factors contribute to chronic stress, which weakens their […]
Ancient giant river dolphin species found in the Peruvian Amazon
- Paleontologists discovered a fossilized skull of a newly described species of giant freshwater dolphin in the Peruvian Amazon, which lived around 16 million years ago and is considered the largest-known river dolphin ever found.
- The ancient creature, measuring 3-3.5 meters (9.8-11.5 feet), was surprisingly related to South Asian river dolphins rather than the local, living Amazon river pink dolphin and shared highly developed facial crests used for echolocation.
- The discovery comes at a time when the six existing species of modern river dolphins face unprecedented threats, with their combined populations decreasing by 73% since the 1980s due to unsustainable fishing practices, climate change, pollution, illegal mining and infrastructure development.
- Conservation efforts are underway, including the signing of the Global Declaration for River Dolphins by nine countries and successful initiatives in China and Indonesia, highlighting the importance of protecting these critical species that serve as indicators of river ecosystem health.
Irrawaddy dolphin death in Thailand’s Songkhla Lake underscores conservation needs
- As few as 14 critically endangered Irrawaddy dolphins remain in the world’s smallest freshwater population of the species, in southern Thailand’s Songkhla Lake.
- The recent death of one of the remaining few raised the alarm among cetacean specialists, who say more must be done to save the imperiled population.
- Teetering on the brink of extinction, the dolphins face a slew of threats from entanglement in fishing nets, depletion of fish populations, and deteriorating lake conditions due to increasing pressures from agriculture, industry and infrastructure development.
- Experts say a “once-in-a-lifetime” opportunity to reverse the dolphin’s trajectory of decline is on the horizon in the form of major funding for dolphin conservation linked to a road bridge megaproject, but they warn it will only be successful if government agencies can put aside their competing agendas.
Report: Rising slaughter of small whales and dolphins threatens ocean balance
- Killings of small whales, porpoises and dolphins are rising, with more than 100,000 of these marine mammals slaughtered each year, according to a new report from German and British NGOs.
- Many regions report increased catches driven by demand for dolphin meat as food and shark bait in areas impacted by economic crisis and dwindling fish stocks.
- Failure to address unsustainable exploitation of small cetaceans exacerbates ecological imbalance and heavy metal toxicity risks to humans who eat them, according to the report.
- Insufficient legislation and enforcement remain critical issues, according to the report, which calls for international collaboration and stronger protection measures.
Summit on migratory species sides with science, throws shade on deep-sea mining
- Representatives from 133 member states of the Convention on the Conservation of Migratory Species of Wild Animals (CMS) met in Samarkand, Uzbekistan, from Feb. 12-17 to discuss measures to protect migratory species on a global scale.
- Many decisions at the meeting, known as COP14, focused on the protection of marine species, including the listing of several species in the convention’s appendices, a draft decision on vessel strikes, and an updated resolution on climate change that urges parties to take measures to protect species from future threats.
- The convention also adopted a resolution urging parties not to engage with or support deep-sea mining until more scientific evidence is acquired. This resolution garnered criticism from the secretary-general of the International Seabed Authority (ISA), the U.N.-mandated body that governs deep-sea mining in international waters.
- While attendees say COP14 had many successes, some experts say that more action and resources are required to keeping species from sliding toward extinction.
Find the manatee: New AI model spots sea cows from images
- A new computer model developed by engineers at the Florida Atlantic University uses deep learning to count manatees in images captured by cameras.
- The model has been trained to identify manatees in shallow waters, and can be used to identify where they aggregate, which can, in turn, be helpful to plan conservation actions and design rules for boaters and divers.
- However, the model can’t yet distinguish between adults and calves, or between males and females, both of which are details that are vital for conservation and research purposes.
- The engineering team says it plans to continue training the model in the months ahead, while also working with biologists to get their feedback on how to improve it further.
Indus River dolphins’ survival is our responsibility (commentary)
- Indus River dolphins are distinguished by their elongated noses and small, nearly vestigial eyes.
- Once thriving in the lower parts of the Indus and its tributaries, their numbers have dwindled due to various environmental stresses.
- “Their story is not just about their survival but also about our responsibility to safeguard our planet’s diverse and increasingly vulnerable wildlife for future generations,” a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.
Concern for Mexico’s vaquita as totoaba swim bladder trafficking surges online
- The dried swim bladders, or “maw,” of totoaba, an endangered fish found in the Gulf of California in northern Mexico, are being increasingly trafficked on digital platforms, according to a report from the Environmental Investigation Agency (EIA).
- The demand for totoaba has impacted other animals that get caught in the same gillnets, most notably the vaquita, the smallest porpoise in the world.
- EIA’s investigation found an increase in the number of swim bladders sold online and on some social media platforms like WeChat, a Chinese texting and cash payments app.
Cambodia sea turtle nests spark hope amid coastal development & species decline
- Conservationists in Cambodia have found nine sea turtle nests on a remote island off the country’s southwest coast, sparking hopes for the critically endangered hawksbill turtle (Eretmochelys imbricata) and endangered green turtle (Chelonia mydas).
- It’s the first time sea turtle nests have been spotted in the country in a decade of species decline.
- Two nests have been excavated to assess hatching success; conservationists estimate the nests could hold as many as 1,000 eggs.
- Globally, sea turtle populations are declining, largely due to hunting for food and the animals’ shells, used in jewelry; other threats to sea turtles include tourism development, pollution and climate change.
Nine countries sign global pact to protect endangered river dolphins
- Since the 1980s, the combined populations of river dolphin species have plummeted by 73%.
- With the Global Declaration for River Dolphins, 14 countries (six of them in Latin America) are expected to join forces to protect the six surviving species of this aquatic mammal that inhabit the world’s rivers and are under some category of threat. So far, nine of the governments involved have signed the declaration.
- The declaration comes at a critical moment for these animals. In September 2023, the death of more than 150 river dolphins in one of the most important lakes in Brazil raised international concern.
Sumatran dugong hunter struggles to adapt to changing times
- The herbivorous dugong was classed as a vulnerable species in 1982 by the International Union for Conservation of Nature.
- Hunters like Munsa in Bintan, a cluster of islands between Sumatra and Singapore, have retired from hunting the mammal in response to conservation initiatives.
- However, Munsa complains that the family’s income has plummeted, and that he needs government to provide alternative livelihoods.
U.S. auctions off endangered whale habitat for oil and gas drilling
- On Dec. 20, the U.S. Department of the Interior’s Bureau of Ocean Energy Management (BOEM) held a lease sale to auction off oil and gas drilling rights in the Gulf of Mexico.
- Environmental groups and the U.S. Interior Department had tried to postpone this sale due to concerns about protecting the critically endangered Rice’s whale, a species whose key habitat overlaps with the lease sale areas.
- Scientists estimate there are fewer than 50 Rice’s whales left, and that the primary threat to the species is the oil and gas industry.
- While the lease sale went through without any protections for the Rice’s whale, environmental groups continue to explore legal and political avenues to ensure the species’ survival.
North Atlantic orcas reveal the troubling persistence of toxic ocean pollutants
- As the top predators in the ocean, killer whales suffer from the magnifying level of pollutants that build up in the marine food web.
- Scientists found that North Atlantic orcas feeding on marine mammals carry significantly higher levels of pollutants than orcas that eat fish.
- Levels of polychlorinated biphenyls in the orcas’ blubber are ten times higher than the toxic threshold for these dangerous household chemicals.
Lethal or not? Australia’s beaches are a crucible for shark control methods
- For decades, Australia’s east-coast states have attempted to keep beachgoers safe from sharks by deploying entangling shark nets and culling species deemed dangerous.
- Recent figures published by the state of New South Wales reveal that almost all the animals caught in the nets during the 2022/23 summer season were “nontarget” species, including turtles, dolphins and endangered shark species, the majority of which died due to entanglement in the nets.
- In contrast, the west-coast state of Western Australia has abandoned a shark culling regime in favor of nonlethal alternatives, such as drone monitoring and “eco barriers,” swimming enclosures that keep marine life out but do not risk entanglement.
- Despite calls from environmental groups to exclusively adopt nonlethal technologies, shark control programs are continuing in both New South Wales and its northern neighbor, Queensland, during the 2023/24 Australian summer.
Dominica set to open world’s first reserve centered around sperm whales
- The tiny island nation of Dominica has announced that it will create a 788-square-kilometer (304-square-mile) reserve to protect endangered sperm whales.
- Most of the sperm whales that live off the coast of Dominica are part of the Eastern Caribbean Clan, which currently has a population of fewer than 300 individuals.
- Sperm whales in this region are threatened by fishing gear entanglement, pollution, boat strikes, and even tourism.
- The new reserve aims to protect whales by restricting activities such as fishing, vessel traffic and tourism, while not entirely banning them.
As population ‘flattens,’ North Atlantic right whales remain at risk
- A new population estimate for North Atlantic right whales found about 356 individuals left in 2022, which suggests the population trend is “flattening.”
- In 2021, scientists previously estimated there were 340 right whales, although this number was later revised to 364 to account for several newborn calves.
- Despite there not being a notable difference between the population estimates in 2021 and 2022, scientists say North Atlantic right whales are still in danger of going extinct and that urgent measures need to be put into place to protect them.
Fishing ban extension raises hopes for iconic Amazon pink river dolphin
- The Amazon river dolphin, or boto, is an integral feature of the rainforest’s biodiversity and culture, and is central to several Indigenous tales.
- Even though the dolphin isn’t fished for human consumption, it’s become endangered over the decades because fishers use its flesh as bait for catching piracatinga catfish.
- The Brazilian government earlier this year renewed a moratorium on fishing of piracatinga, first imposed in 2014, in the hope of saving the dolphin, but experts say fishers have just been ignoring the rule.
- The measure became even more relevant in October following the detection of more than 100 dead dolphins in an Amazon lake — experts suspect that the deaths are directly linked to the extreme drought affecting the region.
Iceland’s whaling paradox (commentary)
- As Iceland’s latest whaling season comes to a close, a heated debate continues over the ethics and sustainability of the country’s policy on these marine mammals.
- Filmmaker and activist Micah Garen — who co-directed the documentary “The Last Whaling Station” — shares his thoughts on what may be the nation’s last whaling season.
- “The paradox of whaling is the inherent contradiction between a utilitarian and Kantian world view. If you believe your choices matter, then ending whaling now is the only ethical, moral and philosophical choice we can make,” he argues.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.
International outcry as Iceland lifts ban on what could be last whale hunt
- The Icelandic government has announced that commercial whaling will recommence following a two-month suspension of the activity, albeit with increased monitoring and stricter hunting regulations.
- The government temporarily banned whaling in June due to animal welfare concerns, but the ban expired on Aug. 31.
- The decision to restart whaling has drawn criticism from environmentalists and animal rights advocates.
- Only one company in Iceland currently has a whaling license, and it’s set to expire this year, with no guarantee the government will renew it for the coming years.
Expected ship traffic to LNG Canada port could see whale deaths also rise
- The nutrient-rich ancestral waters of the Gitga’at First Nation in northern British Columbia are a critical habitat for fin, humpback and killer whales.
- The development of a $35.5 billion LNG terminal threatens these whales, as shipping traffic in the region is projected to surge, leading to more frequent encounters between whales and ships, a recent study warns.
- It uses whale movement data and predicted ship traffic modeling to conclude that two fin whales and 18 humpback whales could be killed each year in ship strikes in Gitga’at territorial waters.
- Researchers suggest mitigation measures like reducing ship speeds in whale hotspots and restricting ship traffic during August, when whales are most abundant in these waters.
Study reveals turtles’ millennia-old food affair with North African seagrass
- Researchers have traced the 3,000-year-old “food footprints” of endangered green sea turtles around the Mediterranean.
- By comparing turtle bone samples from Bronze and Iron Age archaeological sites to skin samples from turtles they’re tracking by satellite today, they’ve uncovered turtles’ enduring preference for the same sea meadows.
- The findings highlight the importance of protecting these underwater meadows, which face degradation due to conversion, pollution and climate change.
AI unlocks secrets of Amazon river dolphins’ behavior, no tagging required
- Freshwater dolphins in the Amazon Basin navigate through flooded forests during the wet season using their flexible bodies and echolocation clicks.
- Researchers have combined advanced acoustic monitoring and AI to study the habits of endangered pink river dolphins (boto) and tucuxi in seasonally flooded habitats.
- They used hydrophones to record sounds in various habitats and employed convolutional neural networks (CNN) to classify the sounds as either echolocation clicks, boat engine noises, or rain — with high accuracy.
- Understanding the dolphins’ movements and behaviors can aid conservation efforts to protect these endangered species, as they face various threats such as fishing entanglement, dam construction, mining, agriculture and cattle ranching.
Keep it down: U.N. report lists ways to reduce ocean noise pollution
- A new report published by the U.N.’s Convention on the Conservation of Migratory Species of Wild Animals (CMS) outlines possible solutions to human-caused ocean noise that impacts marine life.
- It focuses on three main types of underwater noise: shipping, seismic air gun surveys, and pile driving.
- Lindy Weilgart, the report author, said she believes it’s essential to move toward finding solutions rather than only studying the impacts of human-caused ocean noise.
- An outside expert praised the report but also questioned the likelihood of the suggestions being followed, and argued that the noise impacts of wind turbines have not been fully considered.
Fishing, dams and dredging close in on Peru’s river dolphins, study shows
- Amazon river dolphins in Peru are facing increasing threats from human activity, including fishing, proposed construction of dams, and dredging operations
- A study tracked the movements of dolphins in relation to fishing areas, dams and dredging sites, and found that 89% of their home range is subject to fishing activity.
- The research team observed that the dolphins in the study were, on average, located roughly 252 kilometers (157 miles) from the nearest proposed dam and 125 km (78 mi) from the closest proposed dredging site.
- The construction of the Amazon Waterway, aimed at improving navigability along waterways in Peru, involves dredging sites across four main rivers in the basin and could lead to ship collisions with dolphins, increased underwater noise, and habitat degradation.
‘No future’: Iceland cancels whale hunt over animal welfare concerns
- Citing animal welfare concerns, Iceland has suspended its whale hunting season until Aug. 31.
- This decision follows the release of a government-commissioned independent report that found that many whales suffer immensely after being harpooned.
- Iceland had been set to kill around 200 fin whales, up from the 148 it killed in 2022.
Expedition catches Amazon river dolphins to help save this iconic pink species
- In December, researchers gathered extensive data on a population of Amazon river dolphins in the Amanã Sustainable Development Reserve in the Brazilian state of Amazonas.
- They fitted some of the dolphins with radio transmitters to help map their preferred zones and identify priority regions for species protection.
- At the top of the food chain, the river dolphins play important roles as regulators of Amazonian river life and as environmental indicators for potential zoonoses.
- Hydroelectric dams, fishing, and contamination from mining pose the greatest threats to the species across its range.
U.S. says Mexico failed to uphold international treaty protecting vaquita porpoise
- The United States said the government of Mexico has failed to stem the illegal harvest and commercial export of totoaba, which has directly impacted the vaquita.
- The vaquita has dwindled to around just 10 specimens in recent years, the result of getting caught in gillnets targeting totoaba, whose swim bladder is treasured on the Chinese black market.
- US law allows for an embargo on wildlife trade when a country isn’t doing enough to combat illegal activity. However, it isn’t clear that President Joe Biden will take that step.
Melting Arctic sea ice is changing bowhead whale migrations, study finds
- Research has found that some bowhead whales in the Bering–Chukchi–Beaufort (BCB) population are no longer migrating to the northwestern Bering Sea in the winter but remain in the Canadian Beaufort Sea.
- These migratory shifts are occurring as sea ice declines in the region due to climate change.
- These changes could mean that bowhead whales become more susceptible to ship strikes, underwater noise, and entanglements, and that Indigenous communities may not be able to rely on bowhead whales for nutrition and cultural subsistence.
- However, this bowhead population is currently not threatened, and these changes may not be fully impacting Indigenous communities yet.
How do you study one of the world’s rarest whales?
- Researcher Dana Wright is one of a handful of scientists studying one of the world’s rarest creatures, the North Pacific right whale.
- With about 500 individuals remaining, and its eastern population that swims off the coast of North America totaling perhaps 30 individuals, it’s so rare that in a decade of research, she has yet to see a living individual of the population, though her colleagues have.
- How does one study a creature that’s so hard to document? With tools like bioacoustics, for example, and Wright has listened to tens of thousands of hours of recordings to aid the conservation of these endangered animals.
- The team continues to develop new approaches to solving the mystery of these whales’ migratory patterns and biology with a goal of identifying — and then protecting — the location of their winter calving grounds.
At the United Nations, Indigenous Ryukyuans say it’s time for U.S. military to leave Okinawa
- Opponents of the latest U.S. military base in Okinawa, Japan, are calling for urgent intervention by the United Nations to halt the construction of the new base, release military groundwater test data on toxic spills, and close all 32 U.S. military bases.
- The new facility and other military bases have been linked to toxic environmental pollution and construction threatening marine species, along with historical land conflicts between native Okinawans and the mainland Japan and U.S. governments.
- Latest water tests by the Okinawa government reveal PFAS levels up to 42 times higher than Japan’s national water standards with contamination found in drinking and bathing water for roughly 450,000 people.
- Amid rising tensions with China and efforts to counter its influence in the region, Japan and the U.S. cite Okinawa’s proximity to Taiwan and location in the Indo-Pacific as a strategic reason for maintaining bases on the island.
Top French court orders closure of fisheries amid mass dolphin deaths
- France’s Council of State has ordered the closure of certain fisheries during specific times of the year in a bid to lower the rising number of dolphin deaths.
- A separate European Commission-ordered phaseout of non-selective fishing methods, including bottom trawling, could further help restore marine ecosystems.
- The number of dead dolphins washing ashore on France’s Atlantic coast during winter has worried environmental groups for years, finally prompting the EC to set up new marine life protection targets.
- Complaints to the French government have multiplied over time, demanding that it takes measures to minimize unwanted catches and also sparking fears within the fishing industry, which warns of impacts to food security and jobs.
Scientists and fishers team up to protect Bolivian river dolphin
- Hunting, fishing, pollution and degradation and loss of habitat are the main threats facing the Bolivian river dolphin, a species of river dolphin that is found in 10 protected areas in the country.
- For almost three decades, scientists have involved local commercial fishers in an effort to document and monitor the landlocked country’s sole cetacean.
- A team of reporters joined them in sailing 450 kilometers (280 miles) upriver during the most recent population census.
Rewilding animals could be key for climate: Report
- A new report published in Nature Climate Change suggests that trophic rewilding, or restoring and protecting the functional roles of animals in ecosystems, is an overlooked climate solution.
- Reintroducing just nine species or groups of species (including African forest elephants, American bison, fish, gray wolves, musk oxen, sea otters, sharks, whales and wildebeest) would help limit global warming to less than the 1.5°C (2.7°F) threshold set by the Paris Agreement, according to the report.
- Animals play a significant role in how much carbon plants, soil and sediments can capture, as they redistribute seeds and nutrients and disturb soil through digging, trampling, and nest-building.
- The report emphasizes the need for a change in mindset within science and policy to take advantage of the vast potential of wildlife, while working closely with local communities to address social issues that can affect conservation efforts.
New MPA Tic-Toc Golfo Corcovado a safe haven for blue whales in Chile
- Chile declared some 100,000 hectares (247,100 acres) in the Gulf of Corcovado in Northern Patagonia a marine protected area, the highest category of protection.
- The area is an important feeding and breeding ground for endangered blue whales as well as home to numerous other marine mammal species.
- However, it represents only a small fraction of the blue whales’ range, so scientists say additional conservation efforts must continue.
Climate change is exacerbating human-wildlife conflict, but solutions await: Study
- A review of 49 studies reveals that a variety of weather-related phenomena that are likely to become increasingly common due to climate change may increase human-wildlife conflict.
- The most commonly reported conflict outcomes were injury or death in people (43% of studies) and wildlife (45% of studies), and loss of crops or livestock (45% of studies). Many documented cases are occurring in the tropics, with animals such as Baird’s tapir (Tapirus bairdii) in Mexico, and elephants in Africa and Asia, increasingly coming into conflict with local communities.
- The impacts of climate change on human-wildlife conflict may especially affect vulnerable human populations, particularly when combined with pressures that limit mobility and flexibility in humans and animals. These stressors should be minimized where possible, researchers suggest.
- A better understanding of the climatic drivers of human-wildlife conflict could help prevent or alleviate conflicts. Predicting the onset of extreme weather events such as droughts, and proactively responding with temporary measures to protect animals and people, could be one effective solution, as could sharing information on how to avoid the hazards of wildlife conflict.
Avian flu hits Peru, killing thousands of sea birds and infecting some marine mammals
- H5N1, a highly pathogenic avian influenza virus carried generally by wild birds, has arrived in Latin America, causing unprecedented mortality in sea bird colonies along the west coast.
- The virus has killed tens of thousands of sea birds in Peru alone, including some species that are considered endangered in the country, and scientists worry other vulnerable species like the Andean condor might also become infected.
- Hundreds of sea lions and a dolphin have also been infected, which raises concerns regarding transmission to humans and is especially worrisome if it is confirmed that mammals can infect each other.
- The outbreaks also threaten Peru’s guano industry, which provides affordable fertilizer to many small-scale farmers in the region, and could expose people harvesting guano to H5N1.
Recent seismic activity in Indian Ocean likely led pilot whales to beach on Sri Lanka shores
- Marine experts say the seismic activity in the Indian Ocean in the past few days likely pushed a pod of pilot whales onto Sri Lanka’s shores.
- Authorities and volunteers undertook a strenuous 15-and-a-half-hour operation to send a pod of pilot whales safely back into the sea.
- Rescuers managed to push 11 pilot whales back into the sea while three died on the shores.
- Recorded incidents of whales beaching up on Sri Lankan shores go back as far as 1889.
Potential impact on whales overlooked as deep-sea mining looks set to start, experts say
- Scientists say future deep-sea mining activities could impact cetaceans through noise pollution, which could interfere with their communication processes.
- According to an opinion piece, a team of experts say assessments of deep-sea mining impact have focused on species associated with the seabed rather than transitory megafauna that inhabit the proposed mining areas, and that urgent research is needed to understand the potential impact on cetaceans.
- However, a mining company says it is evaluating the potential impact of its proposed operations on cetaceans through the gathering of acoustic data during its recent mining test in the CCZ, which it will combine with three years of environmental baseline data.
- Deep-sea mining in international waters may begin later this year after the Pacific island nation of Nauru, which sponsors a subsidiary of a Canadian mining firm, requested accelerated approval of its mining operation.
Banned but abundant, gillnets pose main threat to Bangladesh’s river dolphins
- Bangladesh is home to around 2,000 Ganga River dolphins and 6,000 Irrawaddy dolphins, found mostly in the Sundarbans, the world’s largest mangrove forest.
- Both species, considered threatened on the IUCN Red List, run a high risk of entanglement in the gillnets used by local fishers.
- Gillnets are banned in Bangladesh, but remain popular among local fishers, with the government unable to crack down on their use.
- To conserve the freshwater dolphins, the government has embarked on a 10-year action plan that includes declaring more areas as dolphin sanctuaries and raising awareness among fishers.
U.S. refuses calls for immediate protection of North Atlantic right whales
- The U.S. government has rejected requests to implement emergency measures to protect critically endangered North Atlantic right whales from vessel collisions during the species’ calving season, which takes place between November and April each year.
- Some protections for right whales are already in place, but experts say urgent modifications are needed to protect pregnant females, lactating mothers and calves.
- There are only about 340 individual North Atlantic right whales left in the world, and birth rates are low.
- The National Marine Fisheries Service has proposed similar protections for right whales, including the enforcement of speed limits across more extensive areas of the ocean and for the rules to apply to more vessels — but charity workers are cautious about the outcome of this proposal.
Mexico dismantles illegal fishing cartels killing off rare vaquita porpoise
- At a press conference, a top navy official confirmed that the Mexican government has arrested members of criminal groups dedicated to illegally fishing totoaba in the Gulf of California.
- Totoaba bladders can go for as much as $80,000 per kilo, earning them the nickname “the cocaine of the sea.”
- Illegal totoaba fishing practices have contributed to the drastic population decline of vaquita, a small porpoise on the brink of extinction.
- Although the government’s arrests could slow the threats against the vaquita, other criminal groups are also interested in trafficking totoaba, suggesting that the fight to conserve marine populations in the gulf isn’t over.
Unsustainable fishing to be banned in Irrawaddy dolphin’s Bornean sanctuary
- Indonesia’s fisheries ministry is working with a conservation NGO to draw up plans prohibiting fishing gear considered dangerous to critically endangered Irrawaddy dolphins in the Mahakam River in Borneo.
- The prohibition will apply to a stretch of the Mahakam that was designated a conservation area earlier this year and that’s home to 90% of the estimated 80 Irrawaddy dolphins in the Mahakam.
- Among the practices they’re seeking to ban are fishing with a type of gill net known as rengge, electrofishing, poison fishing, and fixed-net fishing known as sawaran and kombongan.
- Local fishers are said to be supportive of the plan: “They want to continue fisheries but they also want to get rid of unsustainable fishing … because they care about the dolphins as well.”
Extinct sea cow’s underwater engineering legacy lives on today, study finds
- In a new study, scientists said that the extinct Steller’s sea cow impacted kelp forests in the North Pacific by browsing at the surface, which would have encouraged the growth and strengthening of the algal understory.
- Not only would sea cows have positively impacted kelp forests in the past, but they may have also enhanced their resilience into modern times, according to the authors.
- Globally, kelp forests face many threats, including ocean warming, which can lead to an overabundance of predatory urchins.
- The authors suggest that it might be possible for humans to reproduce the species’ impact on the canopy of kelp forests to enhance kelp forest resilience.
Black Sea dolphin deaths prompt ecocide allegations against Russia
- On Dec. 7, Ukrainian President Volodymyr Zelenskyy accused Russia of ecocide during COP15, the U.N. biodiversity summit in Montreal, following unprecedented reports of dead dolphins and porpoises washing up on Black Sea beaches since Russia invaded Ukraine.
- On Dec. 2, researchers reported the first scientific analysis of changes in cetacean deaths and movement patterns since the war began in February.
- Mounting evidence is slowly painting a clearer picture of the mass mortality of Black Sea cetaceans.
- But estimates of the death toll vary and scientists diverge on whether research has progressed far enough to scientifically conclude the war’s effect.
Shipping lane change could be sea change for Sri Lanka’s blue whales
- Conservationists have welcomed an announcement by MSC, the world’s biggest container shipping line, that its ships will detour around a key feeding and nursing ground for blue whales off Sri Lanka’s southern coast.
- Ship strikes are a leading cause of death for the large whales that frequent the waters around Sri Lanka, which also include to a lesser extent sperm whales and Bryde’s whales.
- Marine conservationist Asha de Vos says other shipping lines should follow MSC’s lead, and has also called on the Sri Lankan government to propose making the shipping lane change permanent.
- She also says whale deaths from ship strikes may be up to 10 times higher than recorded, given that current and wind conditions are more likely to wash carcasses out to sea than toward shore, making them less likely to be detected.
Wrong trend for right whales amid ‘devastating’ population decline
- A newly released estimate suggests that only 340 critically endangered North Atlantic right whales remained as of 2021, a 2.3% decline from 2020, when the population numbered around 348.
- Fewer calves have been born in 2022 so far, corroborating research that suggests that North Atlantic right whale species are becoming less capable of reproducing.
- No adult mortalities have been recorded in 2022, but experts say that only about a third of whale deaths are recorded.
‘Critically endangered’ listing for East African dugong population is needed (commentary)
- Though found in relative abundance in parts of northern Australia, the only known viable dugong population in East Africa calls the waters around the Bazaruto Archipelago National Park in Mozambique home.
- A new peer-reviewed paper proposes the East African dugong population be listed as ‘critically endangered’ on the IUCN Red List to protect the last few hundred animals that are left.
- While Bazaruto’s management has reduced illegal activities in the park that endanger them, these efforts may not be enough to save East Africa’s dugongs without the support of a new ‘critically endangered’ listing, a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.
The mystery of narwhal behavior, solved by chaos theory
- Researchers have used mathematical models based on chaos theory to analyze the movements of a pod of satellite-tagged narwhals.
- Around solar noon, narwhals rest nearer the surface and take deep dives. At night, their dives are shallower but with more rapid and intense movement, likely to hunt for squid. Narwhal behavior also changed according to how much sea ice was present.
- The narwhal life cycle is closely linked to ice. Researchers say this new method may be useful for understanding the challenges narwhals and other Arctic animals face due to the loss of sea ice from climate change.
- Narwhals are among the most highly threatened animals in the Arctic due to hunting, predation, climate change, and the ships and noise pollution associated with oil and gas mining and exploration.
U.S. charts course for adopting ropeless fishing to reduce whale deaths
- The National Oceanic and Atmospheric Administration (NOAA) has published a report laying out a strategy to allow the use of “ropeless” or “on-demand” fishing gear off the U.S. East Coast with the goal of reducing entanglements of the critically endangered North Atlantic right whale.
- The gear uses acoustic signals to locate and retrieve gear, reducing the amount of time that vertical lines are present in the water column, where they can ensnare right whales and other types of marine life.
- Right whale numbers in the North Atlantic have declined precipitously in the past decade, as collisions with ships and entanglements have killed individuals and hampered the species’ ability to reproduce.
- NOAA’s Ropeless Roadmap estimates that on-demand fishing gear can substantially diminish the risk to right whales, while allowing economically and culturally important fisheries of the northeastern U.S. to continue.
Study paints ‘bleak picture’ for nearly all marine life without emissions cuts
- New research published in Nature Climate Change has found that nearly 90% of assessed marine life would be at high or critical risk by 2100 if the world continues upon a high-emissions pathway.
- It found that the risks would be more concentrated in the tropics, and that top predators would be more at risk than species lower down the food chain.
- However, if countries drastically reduce their emissions, the study found that climate risk would decrease for more than 98% of these species.
Experts fear end of vaquitas after green light for export of captive-bred totoaba fish
- After a 40-year prohibition, international wildlife trade regulator CITES has authorized the export of captive-bred totoaba fish from Mexico.
- Conservationists say they fear this decision will stimulate the illegal fishing of wild totoabas and that this will intensify the threats facing the critically endangered vaquita porpoise.
- Only around eight individual vaquitas remain alive; they regularly drown in nets set illegally for totoabas in the Upper Gulf of California, where the two species overlap.
- The swim bladders of totoabas are sold in Asian markets at exorbitant prices because of their value as status symbols and their supposed medicinal properties.
New whale calls and dolphin behaviors discovered with bioacoustics
- On today's episode of the Mongabay Newscast, we take a look at two stories that show how bioacoustics research is helping us better understand the lives of marine mammals — and we take a listen to some of the recordings informing that research.
- Our first guest is Erin Ross-Marsh, the lead researcher behind a study of humpback whales at the Vema Seamount in the South Atlantic Ocean off the coast of South Africa. Ross-Marsh tells us about the study’s finding that these humpbacks were making gunshot calls, a type of non-song call that was previously unknown in these particular whales, and plays some humpback songs, non-song calls, and gunshot calls for us to listen to.
- We also speak today with Sarah Trabue, a research assistant with the Wildlife Conservation Society who is the lead author of a recently published paper detailing the findings of a bioacoustic study of bottlenose dolphins in and around New York Harbor. Trabue tells us what the study reveals about dolphin behavior in the highly trafficked waters around New York City and plays for us some of the dolphin vocalizations recorded as part of the study.
Noise pollution spooks whales the way predators would, study finds
- Whales appear to react to human-made noise in the ocean, such as naval sonar, in a similar way to which they respond to the sounds of their predators like killer whales, according to recent research.
- The authors of the study played the sounds of sonar and killer whales when whales from four species were present.
- The whales responded by breaking off their feeding forays, leading scientists to conclude that noise pollution in the ocean could leave them weaker and more vulnerable to predation.
- The researchers also suggest that marine mammals in the Arctic may be especially at risk as climate change alters their environment in ways that may make them more vulnerable.
What’s popping? Humpbacks off South Africa, new acoustic study finds
- Researchers recently recorded humpback whales making popping sounds like a gunshot at the Vema Seamount off the coast of South Africa.
- It’s not currently known why humpbacks make these sounds, but researchers suspect it has to do with mating or feeding.
- The Vema Seamount is an important feeding ground for humpbacks and other species, leading experts to call for the region to be protected.
Death of last river dolphin in Laos rings alarm bells for Mekong population
- Earlier this year, the last Irrawaddy river dolphin in a transboundary pool between Cambodia and Laos became entangled in fishing gear and died, signifying the extinction of the species in Laos.
- The transboundary subpopulation had dwindled from 17 individuals in 1993, with experts blaming a range of factors — from the use of gill nets and other illegal fishing practices, to overfishing, genetic isolation, and the effects of upstream dams on river flow and prey availability.
- With the loss, there are now just an estimated 89 Irrawaddy dolphins left in the Mekong River, all within a 180-km (110-mi) stretch in Cambodia, where they face the same range of threats that wiped out the transboundary group.
- Authorities and conservationists say they are now resolved to strengthen protections and improve public awareness of the dolphins’ vulnerability to ensure the species has a future in the Mekong.
That dead whale on the beach? Let it be, study says. Or at least don’t blow it up
- When marine mammals wash ashore, government agencies often set about removing the carcass.
- Strategies include burying the body, transporting it to a landfill or incinerator, towing it out to sea, and in at least one misguided case, detonating it.
- But in removing dead, stranded cetaceans from beaches, we may be overlooking the environmental benefits they offer, according to a new study.
- The researchers recommend leaving carcasses to rot in place whenever possible, where the environmental benefits they offer include supporting communities of scavengers, such as threatened species like polar bears and California condors.
NGOs block gillnet fishing across 100,000 sq km of Great Barrier Reef
- In an effort to protect dugongs and other threatened species, WWF-Australia bought a commercial gillnet fishing license for a swath of ocean in the northern Great Barrier Reef, to establish a de-facto marine sanctuary spanning more than 100,000 km2 (38,600 mi2).
- Dugongs, turtles, dolphins and other marine animals are easily caught in gillnets, and experts say many fatalities go unreported.
- The newly protected region is an important feeding ground for dugongs, supporting a local population of about 7,000, experts say.
- WWF-Australia says it hopes the Australian and Queensland state governments will establish more permanent protections for dugongs on the Great Barrier Reef, and that Traditional Owners can use the area for sustainable fishing and tourism.
Behind viral story of bear visiting Nepal hospital lies bigger ailment
- A recent incident of an Asian black bear entering a hospital in eastern Nepal has highlighted the lack of conservation measures for one of the country’s least-understood megafauna.
- The onset of spring coincides with an increase in human-bear encounters, as the animals seek out easy sources of food after their winter hibernation.
- Nepal’s black bear population is estimated at around 1,000, but there’s no consensus on its global population, despite it being a threatened species.
- Already faced with threats from encounters with humans and from demand for bear bile for medicinal use, the animal could also see its range shrink by nearly half due to climate change.
Hippos, manatees, and how the sounds of African wildlife aid their conservation
- On today's episode of the Mongabay Newscast, we discuss two bioacoustics studies of African wildlife and listen to recordings of hippos and manatees.
- We speak with Nicolas Mathevon, a professor at the University of Saint-Etienne in France and co-author of a report published in Current Biology Magazine last month summarizing the results of a study that determined vocal recognition is used by hippos to manage relationships between territorial groups. Mathevon tells us about the study of vocal recognition in hippos, plays us some of the hippo calls used in the study, and tells us how the study’s findings could help improve conservation measures like translocations.
- We also speak with Clinton Factheu, a PhD Student at the University of Yaoundé 1 in Cameroon and a research assistant with the African Marine Mammal Conservation Organization. Factheu recently co-authored a study published by the The Journal of the Acoustical Society of America that used passive acoustic monitoring to provide the first characterization of African manatee vocalizations. Factheu tells us about the research, explains why bioacoustic monitoring is one of the best ways to study a freshwater/marine mammal like the manatee, and plays a number of manatee calls for us.
‘There’s hope’ for North Atlantic right whales: Q&A with filmmaker Nadine Pequeneza
- The documentary “Last of the Right Whales” seeks to bring the plight of these gentle giants to audiences that are largely unaware of how close to extinction the species is today.
- North Atlantic right whales (Eubalaena glacialis) were historically decimated by hunting, but the biggest threats to the species today are ship strikes and entanglement in fishing gear.
- There are an estimated 336 of the animals remaining, more than 80% of which have experienced entanglement in ropes tethered to fishing gear on the sea floor.
- Documentary director Nadine Pequeneza spoke with Mongabay about bringing these threats to public attention, the importance of engaging with and not vilifying fishers, and why she holds out hope for the whale’s future.
Scientists’ secret weapon to monitor the Southern Ocean? Elephant seals
- Southern elephant seals living on Kerguelen Island, a sub-Antarctic island, are helping to gather information about the Southern Ocean with data-logging devices attached to their hair.
- For instance, the elephant seals have helped gather data on sea ice formation, ocean and ice shelf interactions, and frontal system dynamics.
- The Southern Ocean provides many ecosystem services for the planet, but the region is rapidly changing due to climate change.
In prioritizing conservation, animal culture should be a factor, study says
- Research has shown that culture exists in myriad animal species, allowing information to be shared between generations, leading to occurrences of tool use and potentially affecting animals’ adaptability to changes to their environment.
- In a new paper, scientists propose a stepwise process to account for and protect animal culture in conservation efforts.
- They advocate an approach to conservation that integrates culture with conventional considerations such as genetic diversity, rather than using it as a “stand-alone” tool.
Fighting a Chile mining project with science: Q&A with biologist Maritza Sepúlveda
- A recently approved mining project on the Chilean coast has sparked concerns from scientists about the potential impacts on the marine mammals living in the nearby Humboldt Archipelago.
- The channel between the islands and the mainland are home to 15 species of cetaceans, including fin whales, which feed in the area where the mining port will be built — putting them at threat of ship strikes.
- The mining project was previously rejected by the provincial after scientists raised their concerns; among them was marine biologist Maritza Sepúlveda, who studies the marine mammals of the Humboldt Archipelago.
- She says the marine reserve that currently covers just three of the eight islands in the archipelago needs to be expanded to cover a much wider area, noting that “animals don’t recognize administrative regions.”
Court order blocks Shell’s seismic surveys off South Africa’s Wild Coast
- A petition by environmentalists, Indigenous groups and fisheries organizations succeeded in temporarily halting oil giant Shell’s plans to conduct seismic surveys off South Africa’s Wild Coast to prospect for oil and gas reserves below the seabed.
- Conservation groups cited the potential impact on the breeding grounds of southern right whales and humpback whales, and the effect on the local fisheries sector.
- The recent order hinges on whether affected communities that hold traditional rights, including fishing rights in the waters, were properly consulted.
- The judge ruled that they were not, while also noting that concerns about irreversible harm to marine life were “reasonable.”
2021’s top ocean news stories (commentary)
- Marine scientists from the University of California, Santa Barbara, share their list of the top 10 ocean news stories from 2021.
- Hopeful developments this year included big investments pledged for ocean conservation, baby steps toward the reduction of marine plastic pollution, and the description of two new whale species, Rice’s whale (Balaenoptera ricei) and Ramari’s beaked whale (Mesoplodon eueu).
- At the same time, rising ocean temperatures, a byproduct of climate change, had profound effects on marine species up and down the food chain, and action on key measures to maintain ocean resilience in the face of multiple threats hung in the balance.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
Top 15 species discoveries from 2021 (Photos)
- Science has only just begun to find and describe all of the species on Earth; by some estimates, only 20% have been described.
- This year, Mongabay reported on newly described species from nearly every continent, including an Ecuadoran ant whose name broke the gender binary, an acrobatic North American skunk, an Australian “killer tobacco,” a fuzzy orange bat from West Africa, tiny screech owls from Brazil, and more.
- Though a species may be new to science, that doesn’t mean it has not yet been found and given a name by local and Indigenous communities.
Indigenous communities in South Africa sue, protest off-shore oil and gas exploration
- Thousands of South Africans, including Indigenous communities, mobilized in a national protest last Sunday against Shell’s planned seismic survey in search for oil and gas reserves off the country’s eastern Wild Coast – with more protests planned this weekend.
- Two court applications were submitted last week challenging the government’s license for oil and gas exploration, and demanded their constitutional right to a safe and healthy environment, as well as their Free, Prior and Informed Consent.
- Activists and communities fear the surveys and possible oil extraction will impact marine life and pollute coastal ecosystems which the Indigenous Xhosa rely on for their livelihood and traditional rituals.
- On Thursday, the Minister of Minerals Resources and Energy underlined the government’s support for oil exploration, criticizing environmental protesters for actions seen as “apartheid and colonialism of a special type.”
El Niño takes a toll on southern right whales in the Atlantic Ocean
- Southern right whale populations near Argentina have suffered surprising losses during recent El Niño years.
- Intense warmings in 1997-98 and 2015-16 each killed 4 to 5 percent of right whales in the southwest Atlantic Ocean, researchers estimate.
- If El Niño events worsen, models suggest the encouraging recovery of southern right whales could stall or even reverse.
If marine noise pollution is bad, deep-sea mining could add to the cacophony
- A new report suggests that the noise pollution produced by deep-sea mining activities could have far-reaching effects on the marine environment, from surface to seafloor.
- While there are many studies that measure the impacts of noise pollution on marine life, more research is needed to fully understand how sound from deep-sea mining could affect the ocean.
- Due to the paucity of information, experts say a precautionary approach to deep-sea mining noise is required and that clear regulations must be put into place by the International Seabed Authority.
- While deep-sea mining has yet to begin, a subsidiary of Canada-based The Metals Company plans to start mining in less than two years.
Stretch of Borneo’s Mahakam River eyed for protection to save Irrawaddy dolphins
- Conservationists in Indonesian Borneo are working to establish a protected area along the Mahakam River to save the remaining population of the nearly extinct Irrawaddy dolphin.
- The proposed conservation area is expected to alleviate the threats to the population of the freshwater dolphins, including river degradation and ship traffic.
- The latest population estimates suggest only around 80 of the endangered dolphins remain in the Mahakam.
New protections announced for Galápagos Islands and beyond at COP26
- Ecuador’s president announced on Nov. 1 an expansion of the existing Galápagos Islands marine reserve to encompass an additional 60,000 square kilometers (23,200 square miles).
- The majority of the addition would be established across the Cocos Ridge, which is an important migration route for species like hammerhead sharks and leatherback turtles.
- The following day, the presidents of Ecuador, Panama, Colombia and Costa Rica also announced that the four countries intended to create a large marine corridor between their four countries by extending and joining their current marine protected areas.
- Experts say that the new Galápagos marine reserve, in conjunction with the larger corridor, would help protect a range of migratory species.
Pingers on fishing nets found to save river dolphins in Indonesian Borneo
- A trial has demonstrated that underwater acoustic pingers can keep river dolphins at a safe distance from fishing nets, preventing fatal entanglements.
- Fishers in the Mahakam River in Indonesian Borneo collaborated with researchers to test the devices that emit a high-frequency sound that acts as a deterrent to the local population of freshwater Irrawaddy dolphins.
- Aside from protecting the dolphins, the devices were also found to increase fishers’ catches and reduce costly repairs to nets; experts describe this as a “win-win” solution.
- International river dolphin initiatives are now testing the devices in locations such as the Amazon, the Ganges and the Indus rivers to find out if they can be implemented at a much larger scale to safeguard dwindling river dolphin species worldwide.
Project maps soundscape of human noise in northern Adriatic and impact on marine life
- The bottlenose dolphin population of Croatia’s Lošinj archipelago is increasingly faced with problems from noise disturbance produced by boats, particularly in the summer tourist season.
- Noise pollution is known to impact a wide range of marine species, from turtles to tuna to cetaceans, but its long-term effects are still little-understood.
- The SOUNDSCAPE project that started in 2019 in the northern Adriatic Sea, between Italy and Croatia, is trying to better understand the problem at the regional level and identify solutions.
Keep polar bears and their extensive range safe from oil drilling (Commentary)
- In September 2021, a group of conservation groups sued the U.S. Fish & Wildlife Service to challenge a regulation they allege would allow oil and gas operators to harass, harm and potentially kill polar bears on land and sea in Arctic Alaska.
- In this commentary Steve Blackledge and Dyani Chapman of Environment America argue the battle to save the polar bear can’t be limited to the boundaries of the Arctic National Wildlife Refuge.
- “We hope the courts will examine the facts on the ground and force the government back to the drawing board, leading to a regulation that’s far less threatening and much more protective of the polar bear.”
- The views expressed are those of the authors, not necessarily Mongabay.
Experts see no way back for NZ firm blocked from trying to mine the seabed
- The New Zealand Supreme Court recently blocked consent for a seabed mining operation that would annually extract 50 million tons of iron ore from the seabed off the coast of South Taranaki.
- Environmentalists see this decision as a clear victory, but the mining company has stated its intention to reapply for mining permission.
- But experts say it’s unlikely the company, Trans-Tasman Resources Limited (TTR), will be able to regain consent due to fundamental issues with its application, such as the distinct lack of baseline studies on resident marine life and the potential impacts of mining.
- Conservationists say seabed mining in this part of New Zealand would cause irreversible damage to the ecosystem and threaten many rare and endangered species.
Two threatened whale groups had a mini baby boom, but not because of lockdown
- Two rare whale groups — southern resident killer whales in the Pacific Northwest, and North Atlantic right whales — have had mini baby booms since the start of the pandemic, raising hopes about their survival prospects.
- But experts say a reduction in human activity during this period isn’t the cause, and that the underlying threats pushing these whales toward extinction still persist.
- North Atlantic right whales are threatened by fishing gear entanglement and ship strikes, while the southern resident killer whales have seen stocks of their favorite prey, the Chinook salmon, decline.
- Experts say that policies to protect the whales, including regulating shipping, closing fisheries and restricting certain types of gear, are not keeping pace with whales’ changing dynamics, and that changes might need to be applied throughout their range.
Overfishing threatens to wipe out bowmouth guitarfish in Indonesia, study says
- A study has found that uncontrolled fishing of wedgefish, a family of rays, in Indonesia threatens to push the bowmouth guitarfish to extinction.
- The bowmouth guitarfish and the white-spotted guitarfish are the most commonly caught wedgefish species in Indonesia, with their fins supplying the shark fin trade.
- Researchers have called on the government to impose full protection of juvenile wedgefish and a reduction in catches of bowmouth guitarfish specifically to ensure their survival.
- Both the bowmouth and white-spotted guitarfish are critically endangered species, but neither is included in Indonesia’s protected species list.
Faroe Islands to evaluate traditional hunt after slaughter of 1,400 dolphins
- The killing of 1,428 Atlantic white-sided dolphins in the Faroe Islands has sparked outrage among local people and attracted international criticism over the legitimacy of such hunts.
- The hunt was reportedly unauthorized and in violation of local Faroese law.
- In response, the Faroese prime minister announced that the government will evaluate the recent dolphin hunt as well as the tradition’s place in society.
Manatee deaths in Florida point to a global decline in seagrass ecosystems
- This year the U.S. state of Florida saw a record number of manatee deaths, and though investigations are still ongoing, experts attribute most of the deaths to the dieback of seagrass, a primary food source.
- The manatee deaths are part of a larger trend: around the world, seagrasses are on the decline, mainly because of increasingly clouded waters due to coastal development.
- Other drivers of this die-off include algal blooms, destructive fishing and boating practices, and the warmer, more acidic waters of climate change.
- There are spots of hope, yet seagrass scientists warn that we are on the brink of losing many of these important wildlife habitats and global carbon sinks.
Not just sea life: Migratory fish, birds and mammals also fall foul of plastic
- A new report from the U.N. Environment Programme and the Convention on the Conservation of Migratory Species of Wild Animals confirms that plastic pollution poses a major threat to land and freshwater migratory species.
- Mammals, birds and fish are affected through various means, including entanglement, ingestion of plastics, accumulation of microplastics in the food chain, and using plastics in nesting material.
- The report highlights that global capacity to manage plastic pollution is not keeping pace with projected growth in the plastics market.
- The authors call for measures that will ultimately drive change upstream to reduce the volume of plastics entering the marketplace.
Will ‘ropeless’ fishing gear be seaworthy in time to save endangered whales?
- Perhaps fewer than 360 North Atlantic right whales are alive today, according to researchers’ estimates.
- Scientists blame the declining population on the twin tolls exacted by ship strikes and entanglement in fishing gear.
- “Ropeless” fishing gear that minimizes the number of vertical lines in the water that ensnare right whales has emerged as a potential “home run” solution to the entanglement crisis.
- But fishers, industry groups and even ardent proponents of ropeless systems say that it’s not yet a viable replacement for traditional fishing gear in every situation.
Examining ‘What Works In Conservation’
- On today's episode of the Mongabay Newscast, we look at the latest edition of the "What Works In Conservation" report, recently released by the Conservation Evidence Group at the University of Cambridge in the UK.
- We welcome to the program Andrew Bladon, a research associate with the Conservation Evidence Group who tells us about what's new in the "What Works In Conservation 2021" report, how the scientific evidence for the effectiveness of conservation actions is evaluated, and why it's so important to continually reevaluate that evidence.
- We're also joined by Hiromi Yamashita, a visiting professor at the Cambridge Conservation Initiative and an expert on the use of local and traditional knowledge in conservation. Yamashita tells us about her work to incorporate that knowledge into the Conservation Evidence Group’s work.
Stranded dugong in Indonesia reportedly cut up for traditional medicine
- Two dugongs stranded earlier this week on an island in eastern Indonesia, but only one survived and returned to the sea.
- With conservation authorities unable to go to the site due to COVID-19 restrictions, some locals reportedly cut up the dead dugong’s body and distributed the parts for use in traditional medicine.
- Dugongs are a protected species under Indonesian law, and possession of their body parts, even after a natural death, is a crime.
- Strandings of marine animals, particularly sea mammals, are common in Indonesia as its waters serve as both a habitat and an important migratory route for dozens of species.
Trawling bycatch increases risk of marine life extinction in Brazil
- Up to 50 kilos of fish caught in Brazil are thrown away for every kilo that arrives on land; more than 400,000 tons of marine life were discarded between 2000 and 2018 in just four states.
- Less than 10% of the 25,618 fishing boats registered by the Brazilian government are monitored by satellites, and the program that tracks fishing boats by these satellites is not publicly open and not integrated with worldwide monitoring initiatives.
- At the global level, 19 countries, regions and territories have prohibited trawling in their waters, including two in South America: Chile and Peru.
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