topic: Fish

topic: Fish

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20 animal species on the road to recovery: IUCN Red List update
From three species of Arctic seals to more than half of all birds globally, several animals have slipped closer to extinction, according to the latest update of the IUCN Red List. However, 20 species have seen a positive change in their status: they’ve moved farther away from the threat of extinction, thanks to effective conservation […]
Losing Nemo: In the Red Sea, clownfish vanish as anemones bleach
- A 2023 marine heat wave in the central Red Sea caused 100% of monitored sea anemones to bleach, followed by the death of 94-100% of clownfish and 66-94% of the anemones across three surveyed reefs.
- The findings challenge the belief that Red Sea marine life, already adapted to naturally hot water, would be protected from climate change, showing instead that rising temperatures are pushing even these heat-adapted organisms past their survival limits
- While six other Indo-Pacific regions experienced similar bleaching events with anemone deaths below 3%, the Red Sea’s 78% mortality rate reveals that 22 degree heating weeks marks a critical breaking point where these ancient partnerships fall apart.
- Researchers are calling for more monitoring of anemones worldwide while Saudi Arabia responds with expanded conservation efforts, including the world’s largest coral nursery and experimental probiotics to help reef organisms survive heat stress.

First oarfish sighting in Sri Lanka highlights citizen science in marine protection
- Scientists have documented the first-ever record of an oarfish (Regalecus russellii) in Sri Lanka, a 2.6-meter (8.5-foot) specimen caught off the country’s western coast.
- The find expands the known distribution of oarfish into the Indian Ocean, offering a new baseline for studying this rarely seen deep-sea species.
- Meanwhile, another oarfish was recorded in India’s Tamil Nadu this year, while within 20 days, three oarfish have been recorded from Australia and New Zealand, puzzling naturalists.
- The importance of promoting citizen science and raising awareness among fishers is needed.

Global treaty to end subsidies for destructive fishing takes effect
A landmark global treaty to curb billions of dollars in government subsidies for overfishing took effect on Sept. 15, Mongabay contributor Elizabeth Fitt reported. The agreement marks the first time the World Trade Organization (WTO) has approved an environmental sustainability agreement in its 30-year history. The deal came into effect after Brazil, Kenya, Tonga and […]
Cameroon inaugurates controversial dam despite local dissent
- The inauguration of Cameroon’s Nachtigal dam has boosted the country’s electricity supply.
- The dam’s construction has also led to loss of livelihoods for fishers and sand miners on the Sanaga River around the dam site.
- In 2022, these workers received compensation from the dam, but as the full dimensions of their losses emerge, they say this was inadequate.

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.

A protected mangrove forest stands strong as Metro Manila’s last coastal frontier
- A Ramsar site described as the Philippine capital region’s last remaining functional wetland, Las Piñas-Parañaque Wetland Park is a vital sanctuary for more than 160 local and migratory birds.
- The wetland also serves as a haven for fish reproduction, bolstering regional fisheries, and serves as a buffer zone during storms.
- In March, the agency responsible for overseeing investments in large-scale reclamation projects put out a call for “lease or joint venture” proposals for the site.
- After facing public backlash, the agency quietly deleted the call, saying it is aware of the site’s ecological importance and does not plan reclamation projects within the park.

Africa’s largest freshwater lake could be site of Kenya’s nuclear power plant
- The proposal to build a 1,000-MW nuclear power plant on Kenya’s southeastern coast has faced strong opposition from residents and environmental experts, who warn of potential harm to communities, fisheries and the environment.
- Government agencies are now holding consultations at another prospective location on the other side of the country, near Lake Victoria, Africa’s largest freshwater lake.
- Kenya’s energy needs today are met mostly from low-carbon sources, and the country is on track to achieve universal energy access by 2030, but authorities say nuclear power is needed to meet future development goals.
- Some experts, however, warn about the high costs, delays, and long-term environmental risks associated with nuclear power projects.

Indonesia eyes seagrass zoning for blue carbon; experts urge community benefits
- Indonesia is moving to designate 17 seagrass habitats as national strategic areas for blue carbon, a plan that promises climate and community benefits but raises concerns over safeguards.
- The fisheries ministry says the zoning will help cut emissions, protect marine ecosystems and boost coastal livelihoods, with seagrass storing carbon far more effectively than rainforests.
- Experts welcome the initiative but warn it must avoid privatization, ensure fair benefit-sharing and guarantee transparent governance to prevent conflicts and elite capture.
- With Indonesia holding 11.5% of the world’s seagrass meadows, scientists stress the urgency of protection as the ecosystems vanish globally at alarming rates.

Illegal fishing threatens unique marine ecosystem in Peru
- Park rangers who patrol Illescas National Reserve often confront fishers who use chinchorros, a type of fishing net that is banned in Peru.
- The reserve is designated solely as a terrestrial protected area, which often limits the park rangers’ ability to act, as the marine area is outside their jurisdiction.
- Conservationists warn of the urgent need to safeguard this important marine area and its rich biodiversity.

Hope for the iconic Yangtze sturgeon (cartoon)
After losing two of the Yangtze River’s native wildlife icons — the baiji (a river dolphin) and the Chinese paddlefish — to dams and overfishing, and almost losing the Yangtze sturgeon, China seems to be taking measures to correct the course. The demolition of dams along the Chishui He, a major tributary of the Yangtze River, […]
Study spotlights West Papua habitat as whale sharks face increased pressures
- A new study shows the Bird’s Head Seascape in West Papua is a crucial nursery for juvenile whale sharks, where most sightings involved young males feeding around fishing platforms.
- Researchers documented 268 individuals over 13 years, with more than half showing injuries tied to human activity, raising concerns about fisheries, tourism and emerging mining pressures.
- Scientists warn that protecting these habitats with stricter rules and better management is essential for the survival and recovery of the endangered species.

Long-lost white shark tag traces remarkable journey from South Africa to SE Asia
- The discovery of a satellite tag from a subadult female white shark in Indonesia marks the first recorded connectivity of white shark movement between South Africa and Southeast Asia.
- The white sharks found in South Africa and Australia belong to different genetic pools, which makes the two populations distinct from one another, even though they share the same migratory route.
- The biggest threats facing white sharks in South Africa and Indonesia are unsustainable fishing, where the sharks become both the bycatch and main catch.
- While there are attempts to support local fishers to pioneer shark conservation instead of hunting them, such efforts are thwarted by lack of funding.

How we probed a maze of websites to tally Brazilian government shark meat orders
- A recent Mongabay investigation found widespread government purchases of shark meat in Brazil to serve in thousands of public institutions.
- The series has generated public debate, with a lawmaker calling for a parliamentary hearing to discuss the findings.
- Here, Mongabay’s Philip Jacobson and the Pulitzer Center’s Kuang Keng Kuek Ser explain how we built a database of shark meat procurements.

From Chile to Greece, ‘ghost gear’ from fish farms haunts the seas
- Studies and NGOs have documented lost or abandoned gear from open-net aquaculture operations in coastal areas across cold and temperate latitudes, where fish farming in the sea expanded rapidly in the 1980s and ’90s.
- In Chile, Greece and Canada, for example, observers have reported finding disused buoys, sections of rusting platforms, expanded polystyrene, net cages and other debris washed up on shorelines, or sunk in the water.
- Guidelines published by the Global Ghost Gear Initiative (GGGI), a worldwide alliance of groups seeking solutions to fishing gear pollution, say neglected or mismanaged aquaculture gear can disperse in the environment and break down into debris of various sizes, posing risks such as entrapping marine life, damaging habitats or contributing to microplastic pollution.
- Some industry groups say current regulations and practices suffice to prevent ongoing pollution and they are working to resolve legacy contamination.

Indigenous fishers lead science-backed conservation of Colombia’s wetlands
- A community-based monitoring project is helping protect the rich diversity of freshwater fish species in the Ramsar-listed wetlands in the Colombian Amazon.
- By combining ancestral knowledge with scientific tools, Indigenous Amazonian leaders say their communities are strengthening their connection to their territory.
- Community monitoring and training efforts have helped inform fishing regulations to better protect ecosystems and ensure the sustainability of local populations’ livelihoods.

Mongabay shark investigation cited in motion to ban Brazil fin exports
Brazil’s top environment council cited a recent Mongabay investigation as it weighed a ban on shark fin exports and the use of wire leaders, a type of industrial fishing gear, within marine protected areas, Mongabay staff writer Karla Mendes reported. Brazil’s National Environmental Council, known as CONAMA, voted in favor of recommending a ban for […]
EV trial among Bali east coast fishers shows promise amid headwinds
- A social enterprise initiative to equip traditional fishing boats in east Bali with battery-powered engines has shown some encouraging responses among the trial cohort.
- More than 90% of the world’s 40 million fishers are small-scale operations working from small boats, which policymakers say are better suited to adopt electric vehicles compared with larger vessels.
- Azura Indonesia, the company manufacturing electric maritime engines, hopes new charging infrastructure will help overcome commonly cited challenges, including the need for inexpensive, frequent charging required by traditional fishers.
- The electric vehicle trial in Kusamba village was conducted under the Bali Net Zero Emissions Coalition’s energy transition work on the island of 4.5 million.

São Tomé and Príncipe commits to creating a marine protected area network
- São Tomé and Príncipe will establish eight marine protected areas (MPAs) covering 93 square kilometers (36 square miles) of coastal habitats in the Gulf of Guinea.
- The island nation aims to protect its marine environment while improving the lives of fishing communities, who rely heavily on fish for protein.
- Current challenges include the decline of pelagic fish stocks and loss of biodiversity due to indiscriminate fishing practices and climate change.
- The law designating the MPAs is expected to be enacted in September.

Pet sharks have become cool, but is owning them ethical?
- Owning a shark and keeping it in a home aquarium has become cool — and it’s no longer just the province of tech bros and celebrities.
- But experts note that most home aquariums are inadequate and can lead to stunted growth, deformities and early death.
- Yet sharks are often easy to buy, with some selling for as little as $90 online; zebra sharks (Stegostoma tigrinum), which are endangered, go for around $6,000.

24 years on, part one of WTO treaty curbing fisheries subsidies takes effect
- The first part of the WTO’s treaty banning harmful fisheries subsidies, known as Fish One, entered into force Sept. 15 after more than two decades of negotiation and three years of ratification.
- It bans subsidies for IUU fishing and exploitation of overfished stocks while requiring parties to the treaty to disclose detailed data on fleets, catches and subsidy programs.
- Yet it allows certain subsidies to persist; for instance, for fishers targeting unassessed fish stocks or “managed” overfished stocks.
- The treaty will lapse in four years if no follow-up “Fish Two” deal can be reached, but negotiations remain stalled.

Countries shorten tuna fishing closure at Pacific summit with few conservation ‘wins’
- The Inter-American Tropical Tuna Commission (IATTC), a multilateral body that manages tuna and other fish stocks in the Eastern Pacific, held its annual meeting Sept. 1-5 in Panama.
- Commission members agreed to shorten an annual fishing closure from 72 days to 64 days, which was in keeping with recommendations from the IATTC’s scientific committee.
- The members also agreed to move toward adoption, in 2026, of a long-term harvest strategy for bigeye tuna (Thunnus obesus).
- They didn’t adopt proposals to increase monitoring of longline tuna vessels and strengthen shark protection measures, due to resistance from East Asian members.

Researchers describe three new-to-science snailfish species off California coast
In 2019, researchers surveying the seafloor off the coast of California came upon three unusual species of small fishes with large heads: one with bumpy pink skin, and the other two both black in color. The team collected the fish using underwater research vehicles and later analyzed their DNA and bodies. Their analysis showed that […]
Indonesia’s giant Java seawall plan sparks criticism & calls for alternatives
- Indonesia has launched a massive new project on Java’s northern coast, framed as protection for millions of residents from worsening environmental threats.
- The plan has drawn sharp criticism from experts and activists who question its methods, costs and potential impact on vulnerable communities.
- Calls are growing for deeper public consultation and long-term solutions that go beyond quick fixes.

Scientists are breeding rare and endangered animals in China’s longest river
WUHAN, China (AP) — A dozen sleek grey Yangtze finless porpoises glide inside a vast pool at the Institute of Hydrobiology in Wuhan as scientists find ways to protect and breed the rare mammals in China’s longest river. The Yangtze River is one of the busiest inland waterways in the world with 16 major ports. […]
Scientists capture rare video of bumblebee catfish climbing waterfalls in Brazil
In November 2024, members of Brazil’s environmental military police and scientists observed a “massive aggregation” of small catfish making their way up waterfalls in Brazil. These first-of-their-kind observations of the rare bumblebee catfish likely migrating upstream to spawn were published in a recent paper. The researchers’ video footage shows thousands of bumblebee catfish (Rhyacoglanis paranensis), […]
Scientists reconfirm rare shark sightings after 50 years in PNG
In 1973, researchers scientifically described a species of shark based on a single specimen: a pregnant female caught a few years earlier by a fisherman near the mouth of the Gogol River in Astrolabe Bay, Papua New Guinea. They named this new-to-science species the sailback houndshark (Gogolia filewoodi). And then, for the next half-century, they […]
A ‘sea war’ brews off Gambia as desperate local fishermen attack foreign vessels, and each other
BANJUL, Gambia (AP) — A “sea war” is brewing off the West African nation of Gambia as desperate local fishermen attack foreign commercial fishing vessels, and each other. The fight is driven by market forces and foreign seafood appetites that are far beyond their control. The Associated Press exclusively obtained video of one attack that […]
Climate change is driving fish stocks from countries’ waters to the high seas: Study
- A new study found that more than half of the world’s straddling stocks will shift across the maritime borders between exclusive economic zones (EEZs) and the high seas by 2050.
- Most of these shifts will be into the high seas, where fisheries management is much more challenging and stocks are more likely to be overexploited.
- Among the most serious potential consequences is a loss of fisheries resources for many tropical countries that did little to create the climate crisis, including small island developing states in the Pacific Ocean.

Scientists warn ocean-based climate fixes lack rules and oversight
- Marine-climate interventions have received increased money and attention in recent years.
- While many projects and ideas may be well-intentioned, they’re generally not subject to strong governance or oversight, and they often pose risks of social and ecological harm, according to a new paper.
- The authors call for local, national and global rules that will make interventions “safe, equitable and effective.”

Shrinking Mekong megafish underlines risks to the river, study finds
- A new study has found that the Mekong River’s largest freshwater fish are shrinking in size, with critically endangered species like the giant catfish and giant barb now averaging less than half their historical size.
- Researchers analyzed more than 397,000 samples of 257 species across Laos, Cambodia and Vietnam, finding that fish longer than 60 centimeters (2 feet) are shrinking fastest, while smaller species show little change.
- Overfishing, habitat loss, dam construction, sand mining, pollution and climate change are driving the decline, raising fears of collapse in one of the world’s most important inland fisheries.
- Scientists warn the trend mirrors global declines in large freshwater species, such as in the Amazon and Nile basins, but recent discoveries of massive fish like a 300-kg stingray show it’s not too late for recovery if urgent action is taken.

Ghana passes landmark legislation to protect artisanal fisheries
- Ghana has passed a new fisheries act which aims at strengthening the artisanal fishery sector, restoring fish stocks and tackling problems with illegal, unregulated and unreported fishing.
- A major change is the expansion of the country’s inshore exclusion zone, which will double in size, expanding from 6 to 12 nautical miles (11 to 22 kilometers) from shore.
- The law has been welcomed by artisanal fishers who have been struggling with declining pelagic fish stocks due to destructive fishing practices within the IEZ.

Indonesia’s Bajau fishers lament nickel mining’s marine pollution
For many members of the nomadic Bajau sea tribe on Indonesia’s Kabaena Island, growing up meant swimming and fishing in clear waters, just outside their homes built on stilts. However, in 2010, the water turned red, which the villagers blame on runoff from nearby nickel mining, Mongabay’s Hans Nicholas Jong reported in July. “Now, I […]
Brazil cities vow to stop buying threatened shark meat after Mongabay probe
Several government agencies in southern Brazil have said they will stop ordering angelshark meat for public meal programs, in response to a Mongabay investigation that highlighted the widespread consumption of the threatened species. Shark meat is often served in public schools, hospitals and other institutions due to its low cost and lack of bones. The […]
Philippine fishers struggle as LNG ‘superhighway’ cuts through biodiversity hotspot
Fishers in the Philippines’ Batangas Bay are struggling to make ends meet and feed their families as nearby coastal areas are developed into a natural gas import hub, Mongabay contributor Nick Aspinwall reported in July. Families that have been fishing in Batangas Bay for years have been asked by local officials to leave to make […]
Community efforts yield new marine protected area in the Philippines
The Philippines has officially designated a new marine protected area after an 18-year campaign by local communities, fisher associations, civil society organizations and government agencies, the Wildlife Conservation Society announced Aug. 13. The newly created Bitaug Marine Protected Area (MPA), which covers nearly 150 hectares (about 370 acres), is the largest MPA in Siquijor province […]
Indonesia’s aquafarm revamp sparks fears for fate of farmers and mangroves
- Indonesia plans to revitalize 78,000 hectares (193,000 acres) of state-owned aquaculture ponds, starting with 20,400 hectares (50,400 acres) in West Java province, aiming to boost yields, create 119,000 jobs and attract investors.
- Small-scale farmers like Warno in Karawang district, who rent and maintain ponds from the state, say they fear losing their livelihoods without compensation if the government takes over their farms.
- NGOs and experts warn the program could fuel mangrove clearing, coastal damage and privatization of coastal areas, while sidelining local communities’ rights and voices.
- Critics also raise concerns over the government’s push for more farming of saltwater tilapia, citing risks from the invasive species and an industrial aquaculture model that could reduce locals to laborers.

Whale shark hotspot discovered along the Great Barrier Reef
- Whale sharks (Rhincodon typus) are the largest fish in the world and are endangered but are hard to study because they’re largely solitary creatures that roam great distances.
- There are only about 30 sites worldwide where they’re known to aggregate — and scientists have finally identified one of them along the Great Barrier Reef, a new study reveals.
- It’s the first known aggregation found in eastern Australia and in the entire southwest Pacific Ocean.
- The finding is significant for whale shark research and conservation efforts, experts said.

Ocean-based carbon storage ramps up, bringing investment and concern
- Storing captured carbon in the subsea — in depleted oil and gas wells or in aquifers — is ramping up as a climate solution, with projects planned across the globe by industry and governments.
- Tipped as a way to address “hard-to-abate” emissions from industries such as cement, steelmaking and chemicals, it’s hailed by proponents as a viable and necessary part of the transition to net-zero greenhouse gas emissions.
- But critics say offshore CCS poses great risks and will perpetuate a history of failure that has plagued onshore efforts to store carbon.
- It also raises environmental concerns, such as the potential for carbon leakage that could undermine climate efforts and harm marine life, contributing to already increasing ocean acidification.

There’s hope for sunflower sea stars, with their killer unmasked and reintroductions pending
- Since 2013, sea star wasting disease, worsened by warming oceans, has wiped out 99% of sunflower sea stars from Washington state to Mexico, collapsing kelp forest ecosystems.
- Researchers from the University of British Columbia and the Hakai Institute in Canada have pinpointed the bacterium Vibrio pectenicida as a key cause of the epidemic, confirming its lethal effects through lab experiments that replicated symptoms seen in the wild.
- A coalition of aquariums, nonprofits, Indigenous groups and government agencies has successfully bred sunflower sea stars in captivity for the first time, experimenting with fresh, frozen and cryopreserved sperm, and raising 72 juveniles in a Monterey facility with plans for controlled releases.
- Guided by the Pycnopodia Recovery Working Group and a 2024-2027 conservation plan, efforts have now turned to breeding, disease research, habitat protection, regulatory engagement and public outreach, with broad community support — including from fishers — for restoring this keystone predator.

How will fisheries change in a hotter world? Experts share
- Fifty years from now, in 2075, global ocean temperatures are forecast to rise by between 2° and 5° Celsius (3.6° and 9° Fahrenheit). Warming is already reshaping fisheries worldwide, and even more dramatic changes are expected as fish largely move to cooler latitudes.
- These fish migrations will change ecosystem patterns and will likely have unexpected consequences even in places far from the fish themselves. They also may devastate fishing communities, both on an economic scale and a social one.
- However, there are potential solutions to avoid the most catastrophic effects for fishers and ecosystems alike, including setting aside some ecosystems as marine protected areas, changing fisheries management strategies and retraining communities to provide supplemental income.

Can we undo extinction? A growing effort to restore lost sharks
- ReShark is the world’s first shark rewilding program, aiming to restore Indo-Pacific leopard sharks to reefs where they’ve disappeared, starting in Raja Ampat, Indonesia.
- The initiative repurposes surplus eggs from aquariums, transporting them across oceans and rearing them in locally managed hatcheries before releasing them into the wild.
- A growing community of Indonesian conservationists—including trained “shark nannies,” students, and villagers—is central to the project’s success and sustainability.
- With global collaboration and scientific rigor, ReShark aims to produce a model for reversing extinction—one grounded in genetics, local stewardship, and public engagement.

Displaced and dispossessed, Cambodia’s ethnic Cham fishers struggle to survive
- Ethnic Cham fishers in Cambodia say they face repeated evictions from their floating homes, often timed with major events and justified as environmental protection.
- They report unequal treatment by authorities, with harsher crackdowns on their small-scale fishing while larger, illegal operations go unpunished.
- Displacement and enforcement have pushed many into poverty, with little access to alternative livelihoods or support systems.
- Experts and advocates warn that current policies risk erasing Cham culture and call for more equitable, historically informed solutions.

Revealed: Brazilian state buys endangered angelsharks for school lunches
Endangered angelsharks have been served to schoolchildren in the Brazilian state of Rio Grande do Sul for years, as well as in hospitals, clinics, shelters and other public institutions, Mongabay has found. We identified 52 tenders totaling more than 211 metric tons of “peixe anjo,” a common name for angelshark, issued by the state and city […]
Anchovy-rich diet linked to vitamin deficiency and deaths among salmon, study
A new study links widespread deficiency of vitamin B1, or thiamine, among California Chinook salmon to their deaths. This adds yet another challenge for this iconic species whose population is already imperiled by climate change, habitat loss and overfishing. Salmon serve a critical ecological role in the Pacific Northwest, transporting marine nutrients from the ocean […]
Encouraging signs from a no-fishing zone in Comoros could inspire others
- Signs of improvement in fisheries arising from a small no-fishing zone in the Indian Ocean nation of Comoros could inspire the establishment of more such zones across the archipelago.
- A fishers’ group installed the first no-take zone inside a marine protected area off the island of Anjouan in 2021. The group’s president told Mongabay fishers are now encountering more fish nearer to the shore outside the zone’s bounds.
- Buoyed by the results, a local nonprofit plans to establish five no-take zones in Anjouan over the next two years, covering 425 hectares (1,050 acres) of coral reefs.
- Earlier efforts to enforce temporary fishing closures to promote octopus fisheries for export and reduce pressure on fragile coral reef ecosystems didn’t lead to the anticipated benefits.

Upmarket fish maw trade in Singapore & Malaysia includes endangered species: Study
- A new study using DNA barcoding reveals that Singapore and Malaysia’s fish maw markets include species listed as vulnerable, endangered or critically endangered, many of which are poorly monitored and sourced from unmanaged fisheries.
- Researchers identified 39 species from 503 dried maw samples, including critically endangered large yellow croakers and European eels, highlighting the scale and complexity of this high value, underregulated trade.
- Experts warn that the trade poses a growing threat to marine biodiversity, and with nearly 30% of samples coming from species lacking IUCN assessments, it makes sustainability difficult to evaluate.
- Researchers and conservationists urge governments to expand CITES protections, enhance species monitoring, educate stakeholders, and improve international coordination to prevent more marine species from being pushed toward extinction.

Paul V. Loiselle, champion of cichlids, died April 15, aged 79
Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. Among those who cared about freshwater fish — and there were many — Paul Loiselle stood out not for how loudly he spoke and cared, but for how deeply he understood. His grasp of ichthyology was vast, his […]
Devils Hole pupfish hit by micro-tsunami from 8.8-magnitude Russian earthquake
A powerful 8.8 magnitude earthquake that struck near Russia’s Kamchatka Peninsula on July 29 sent ripples nearly 4,000 miles across the Pacific, disturbing one of the most fragile ecosystems in the United States: Devils Hole in Nevada’s Mojave Desert, according to park officials. The quake generated 10-inch waves inside the narrow, water-filled cavern—a dramatic but […]
UN meeting closes with no moratorium on deep-sea mining; groups lament
Civil groups expressed dismay as the 30th International Seabed Authority (ISA) session recently ended in Jamaica without a moratorium on deep-sea mining, a process of extracting minerals from the seafloor, which experts say can damage marine ecosystems. The ISA Council finished the second reading of the draft regulations for the commercial exploitation of deep-sea minerals. However, the […]
When the sea takes over: Voices from a climate-displaced community in Mexico
TABASCO, Mexico — Flooding caused by rapid sea-level rise and increasingly intense storms has decimated the coastal town of El Bosque in Tabasco, Mexico. Between 2019 to June 2024, at least 70 homes in the community were destroyed by the sea. Most of its residents have been relocated to a site further inland by the […]
‘Nothing about us without us’: Inuit leader Sara Olsvig on ocean politics
- Sara Olsvig chairs the Inuit Circumpolar Council (ICC), which represents some 180,000 Inuit people across Alaska (in the United States), Canada, Kalaallit Nunaat (the Inuit name for Greenland) and Chukotka (in Russia).
- Climate change has reduced the extent of sea ice in the Arctic Ocean, opening up new shipping lanes and increasing interest in various forms of resource exploitation, including for oil, gas and minerals.
- The ICC is engaged in negotiations over the development and implementation of major international agreements on shipping, plastics, and the management of biodiversity in the high seas, all under United Nations bodies.
- In all of these forums, the ICC is pushing for input into international rules that affect Inuit livelihoods and the Arctic environment.

As gas giants move in, Philippine fishers fight for their seas and survival
- Fishing communities along the Philippines’ Verde Island Passage, a haven for marine biodiversity, say the development of a natural gas import hub in the area is leading to environmental degradation.
- Fishers say their catches have declined since a liquefied natural gas plant was built in the area a decade ago, and that they’re being turned away from remaining fishing grounds due to the ongoing construction of an LNG terminal.
- The Japan Bank for International Cooperation, a key funder of the LNG project, denies these claims, saying in a recent report that it didn’t find evidence that LNG development had led to environmental degradation or a reduction in income for local fishing communities.

Batang coal plant’s seawater permit imperils marine life, fishing communities
- The Batang coal-fired power plant in Central Java, now legally permitted to use vast amounts of seawater for cooling, has raised alarms among experts over its impact on marine ecosystems and traditional fisheries.
- Since operations began, the plant has displaced fishing communities, polluted coastal waters with heated discharge and caused up to a 50% decline in shrimp catches, particularly affecting traditional fishers in Roban Barat.
- Community resistance was met with intimidation and arrests, while some residents accepted compensation from the operator, PT Bhimasena Power Indonesia, further dividing the local population.
- Critics, including Greenpeace and KIARA, say the project reflects Indonesia’s coal-centered energy policy, undermining both environmental justice and climate goals, as the country continues to expand fossil fuel use despite international pressure to shift toward renewables.

Sri Lanka hit by plastic pollution after cargo ship sinks off Indian coast
Sri Lankan authorities, locals and environmentalists say they’re deeply concerned about the possible impacts on the country’s marine ecosystem and coastal communities from the sinking of a container ship off the southern coast of India in May, Mongabay contributor Malaka Rodrigo reported in June. The Liberia-flagged ship MSC Elsa 3 sank on May 25 about […]
Darkest-ever dwarfgoby fish gets named after Darth Vader
From the volcanic fjords of Tufi in Papua New Guinea, researchers have described a new-to-science species of a coral reef fish called a dwarfgoby with an unusual purplish-black color. The tiny fish is the “darkest of all described dwarfgobies,” the researchers say in the study, naming it Eviota vader after the Star Wars villain Darth […]
Evolution in overdrive as Baltic cod shrink due to fishing pressure, study shows
- The eastern Baltic cod has shrunk dramatically in size in recent decades due to rapid evolution — changes at the genetic level — caused by decades of intensive fishing, a new study says.
- Eastern Baltic cod, which are a distinct subpopulation of Atlantic cod (Gadus morhua), lost nearly half of their length and four-fifths of their weight from 1996 until 2019.
- It’s one of the first studies to show that a marine species has evolved in response to fishing pressure.
- An expert said the shrinking of the cod was “alarming,” and called on fisheries managers to work to protect fish biomass and size, given this new evidence of fisheries-induced evolution.

Conservationists raise sharks to restore reefs in waters around Thailand
- A new rewilding program aims to boost the local population of bamboo sharks in the waters of Khao Lak, Thailand.
- The species, classified as near threatened on the IUCN Red List, used to be abundant in the area, but has declined as a result of overfishing and habitat destruction.
- Since the project launched in 2018, with the support of luxury resorts in the area, it has released 200 bamboo sharks into the wild.
- A separate program that started in May 2025, is breeding leopard sharks, which are listed as endangered. They will be released in the waters off Phuket, and eventually the Gulf of Thailand.

Indonesia moves to revise sea sand export policy after court ruling
- Indonesia’s Supreme Court earlier this year struck down key parts of a 2023 regulation allowing sea sand exports, citing legal contradictions and environmental risks.
- The annulled policy had reversed a two-decade ban and faced backlash for potentially harming marine ecosystems and coastal communities.
- The government now says it’s revising the regulation, arguing that dredging can benefit ocean health and support domestic infrastructure projects.
- Critics warn the practice threatens fisheries, marine carbon stores and long-term sustainability, and call for a shift toward restoration over exploitation.

Global tracking study reveals marine megafauna hotspots lie largely unprotected
- A global study tracking nearly 13,000 marine animals representing 111 species reveals they spend 80% of their time in just 63% of their range, yet only about 5% of these high-use ocean areas are currently protected.
- The research identifies Important Marine Megafauna Areas (IMMegAs) as ecological hotspots that span national waters and the high seas, where governance and protection are often lacking.
- Findings show that the global target of protecting 30% of the ocean by 2030 is insufficient to safeguard migratory species unless paired with additional mitigation measures outside protected areas, like bycatch reduction and ship speed regulations.
- Researchers call for stronger international coordination and more dynamic, movement-informed conservation strategies to effectively protect wide-ranging ocean wildlife.

Canada’s Pacific Coast hit hard by trawling, with limited transparency: Report
- Trawling vessels pursuing fish are damaging marine ecosystems in Canada’s West Coast waters and could be operating illegally in some cases, and yet they work with insufficient transparency, a new NGO report says.
- Nine large trawlers have together trawled swaths of the ocean collectively larger than the size of Ireland since 2009; they have likely trawled in prohibited zones at least 47 times and have disrupted Chinook salmon (Oncorhynchus tshawytscha) migratory routes, which are foraging areas for an endangered population of killer whales (Orcinus orca), the report says.
- A trawling industry group dismissed the NGO’s findings, saying they lacked context and the fishery was very well regulated.
- A Canadian regulatory agency said the fishery was well managed, with strict monitoring and enforcement of rules.

Sharks didn’t rebound—so Mark Erdmann is putting them back
- For over 30 years, Mark Erdmann has combined scientific discovery with grassroots conservation in Indonesia, helping communities protect their reefs from destructive practices and documenting more than 220 new species.
- As a leader behind Raja Ampat’s pioneering community-governed marine protected areas, Erdmann has shown how local stewardship can revive ecosystems—bringing back sharks, rays, and sustainable tourism.
- Despite new threats like over-tourism and revived mining, Erdmann remains hopeful, pointing to rising public resistance, tech-enabled rewilding programs like ReShark, and a new generation of Indonesian conservationists.
- Erdmann spoke with Mongabay Founder and CEO Rhett Ayers Butler during a voyage in the Pacific in June 2025.

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.

Brazil court halts plan to blast 35-km river rock formation hosting endangered species
A federal court in Brazil has blocked the start of planned explosions along a 35-kilometer (22-mile) rock formation called Pedral do Lourenço in the Tocantins River, pausing a major infrastructure project until a judge can inspect the site. The decision suspends the federal government’s attempt to clear the way for large cargo ships to travel […]
A new data hub helps small-scale fishers adapt to climate change
Roughly 40% of the global fish catch comes from small-scale fisheries. It’s one of the food production systems most vulnerable to climate change, and governments are lacking data to help fishers adapt. To help address that gap, the global research partnership CGIAR recently launched its Asia Digital Hub at WorldFish’s headquarters in Penang, Malaysia. The Hub […]
Will temperate seas act as refuge for coral reefs? Not in time, study says
- Some scientists have held out hope that, given the threats tropical corals face from climate change, they could improve their viability by expanding their range — by finding refuge in more temperate seas.
- However, a new study found that coral reef decline will far outpace expansion into temperate waters. Most of the damage to corals will be done in the next 40 to 80 years, but expansion will take centuries.
- The severity of coral loss will depend on levels of greenhouse gas emissions in coming decades.

Listings of Indonesian islands renew fears of privatization for coastal communities
- Listings of Indonesian islands on a foreign real estate site have sparked concerns about privatization, prompting the government to block the site domestically and clarify that islands cannot be sold to foreign entities under national law.
- Officials said the listings were likely aimed at attracting investment, not outright sales, but critics warn such practices enable control over island and offshore areas, often displacing fishers and triggering land conflicts.
- A 2021 regulation allows foreign investors to lease small islands for up to $1,900 per km² per year, and a government portal launched in 2024 streamlines permits for islands smaller than 2,000 km², accelerating commercialization.
- Watchdogs say 254 small islands have already been privatized, often without adequate oversight, and warn that unchecked investment could jeopardize fisher livelihoods and national sovereignty over maritime territories.

As Thailand’s fishing cats face habitat loss & conflict, experts seek resolution
- Fishing cats have lost vast swathes of their former range in Thailand, where decades of wetland conversion to fish farms, shrimp ponds and plantations have decimated their numbers.
- With habitats shrinking, these wild cats have been driven to living in human-dominated landscapes, where conflicts often arise.
- Fishing cats perceived as competing with farmers for fish and chickens are sometimes killed in retaliation.
- Activists and NGOs are working to reduce these conflicts and encourage landowners to preserve patches of remaining habitat suitable for the cats.

A Kenya marine biodiversity credit program restores mangroves — and livelihoods
- The decline of mangroves significantly weakens Kenya’s coastal protection, leaving shorelines susceptible to erosion, storm surges and rising sea levels, disrupting marine ecosystems, depleting fish stocks, leading to reduced biodiversity — and lost livelihoods for locals.
- A U.S.-based organization called Seatrees is working with the local Community Based Environmental Conservation (COBEC) and residents of Marereni to restore and protect coastal and marine ecosystems as a natural solution to climate change.
- Since 2024, Seatrees has offered donors the option of buying $3 “biodiversity blocks,” each of which represents a single tangible conservation action: planting one mangrove tree on site in Marereni.
- The work goes beyond just planting trees, as community members turn mangrove restoration into a livelihood by establishing and maintaining nurseries — and, in some cases, starting side businesses with the income.

With coral-rich Churna Island now an MPA, Pakistan takes baby steps on ocean protection
- In September 2024, Churna Island and the sea surrounding it became Pakistan’s second designated marine protected area, home to a variety of corals and serving as a nursery for fish.
- It followed the 2017 designation of the country’s very first MPA around Astola Island, a haven for coral, birds and sea turtles to the east.
- While Pakistan’s first two MPAs are small and have yet to be fully implemented, they represent baby steps in the country’s nascent effort to protect its marine environment.
- The country still has a long way to go to protect 30% of its ocean by 2030, as mandated by the United Nations Convention on Biological Diversity.

Two coasts, one struggle for octopus fishers battling overfishing and warming waters
- In Spain and Mexico, demand for octopus is up, but octopus populations are down.
- In both countries, artisanal octopus fishers are sticking to traditional fishing techniques while joining eco-certification schemes with tighter regulations, hoping to protect not just the cephalopod population, but their own livelihoods.
- But while this may offer a lifeline to the fishers’ economies, it may only work well for the octopus populations when all fishers in an area join in, experts say — and that’s not the case in Mexico, where illegal octopus fishing is rampant.
- Moreover, factors beyond fishers’ control, like warming waters, may affect the fishers and the octopuses alike.

First-ever assessment highlights threats to Atlantic cold-water corals
- A new study published in the journal Marine Biodiversity delivers the first global IUCN Red List assessments for 22 cold-water coral species in the Northeast Atlantic.
- More than 30% of the species are at risk of extinction due to bottom-contact fishing, habitat destruction and climate change, with white coral (Desmophyllum pertusum) listed as globally vulnerable.
- Experts say the findings highlight gaps in conservation, especially for deep-sea species often excluded from monitoring and protection efforts.
- The study’s release comes at a key moment, as international talks continue under the Beyond National Jurisdiction Treaty to improve high seas biodiversity protections.

Illegal fishing and its consequences: the human toll of migration in Senegal
- In 2024, more than 2,000 people are believed to have died at sea while attempting to reach Spain’s Canary Islands from Senegal and the Gambia.
- According to the NGO Environmental Justice Foundation (EJF), people from Senegalese fishing communities are tempted to migrate to Europe due to declining fish stocks, owing in part to illegal fishing by European and Asian fleets.
- Illegal fishing, along with trawler fishing, are among the main drivers of this depletion of marine resources, depriving small-scale fishers in Senegal of a livelihood.
- Advocacy groups Oceana and ClientEarth have taken the Spanish government to court for failing to investigate — and, where appropriate, sanction — Spanish vessels that go dark by failing to transmit their location, and for not effectively monitoring the fishing operations of Spanish companies in West Africa.

Predatory snakehead fish poses invasive threat after sighting in Sri Lanka reservoir
- The giant snakehead (Channa micropeltes), a predatory fish native to Southeast Asia, has been found in Sri Lanka’s Deduru Oya reservoir, raising concerns over the invasive species’ potential impact on native freshwater biodiversity and inland fisheries.
- With the ability to grow up to a meter (3 feet) in length, the giant snakehead is larger and more aggressive than Sri Lanka’s largest native snakehead species, posing a threat of outcompeting them and disrupting local aquatic ecosystems.
- Introduced through the aquarium trade, these snakeheads have already become invasive in countries such as the United States and Malaysia, triggering ecological crises that have led to bans, public awareness campaigns, and targeted removal programs.
- With more than 30 invasive fish species now established in Sri Lanka’s waterways, experts warn that weak enforcement and poor regulation over exotic fish imports and aquaculture practices are increasing the risk of further biological invasions.

What happens to artisanal fishers when a deep-sea fishing port comes to town?
- A new fishing port slated for completion in June will bring huge commercial vessels into the artisanal fishing community of Shimoni, Kenya.
- Local fishers fear that once the new port comes online, their fishing will become impossible in the near-shore waters they have fished for ages, and the huge vessels will disrupt local seafood markets.
- In 2023, President William Ruto promised to equip the local fishers with boats capable of fishing in the deep sea, but more than a year later, this promise has yet to be fulfilled, and local fishers say that boats the county delivered aren’t up to the task.
- Moreover, they say training will be essential to operate any deep-sea fishing vessels, along with mechanical support, and they worry they won’t be able to afford the upkeep costs.

Vanishing giants: The Indian Ocean’s biggest fish need saving (commentary)
- New research confirms the decline of predatory and large-bodied fishes in the western Indian Ocean due to overfishing, unregulated fishing practices and climate change.
- The lead author of a new paper published in the journal Conservation Biology argues that these fish must be protected to ensure healthier reefs, marine ecosystems and adjacent human communities.
- “This issue isn’t just about protecting fish, but also maintaining a healthy ecosystem, supporting a crucial food source for millions and sustaining the livelihoods of many coastal communities. If we act now, we can still turn the tide,” the author writes.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Endangered humphead wrasse gets a lifeline from facial recognition tech
- The endangered humphead wrasse, a reef fish that swims the seas from Africa to the South Pacific, is in high demand in mainland China and Hong Kong as a luxury culinary delicacy.
- Despite harvest limits, trading regulations and fishing bans, it’s overfished and illegally traded.
- Researchers in Hong Kong have developed a new AI-based photo identification smartphone app, Saving Face, to help enforcement officers identify individual fish using their unique facial patterns with just a photo.
- Researchers say they hope the app can address both illegal laundering of humphead wrasse and mislabeling of wild-caught fish as captive-bred; its developers say it can be tweaked to identify other species that have unique markings.

As a fishing port rises in Kenya, locals see threats to sea life, livelihoods
- In Shimoni, Kenya, a new fishing port is slated to open in June.
- While the government promises local people opportunities for jobs and businesses once operations start, some residents foresee more harm than good from the port.
- Some conservation activities — including seagrass, coral and mangrove restoration projects as well as fishing, seaweed farming and tourism operations — have already suffered during the port’s construction phase, which began in 2022, local people say. They fear it may get worse once the port opens, especially if planned dredging proceeds.
- A county government official said Kwale county is monitoring the situation and pledged to mitigate any impacts and safeguard fishing activities and conservation efforts.

Seaweed farming as an eco-friendly alternative for Tanzanian fishing communities
Climate change, overfishing and habitat loss have caused a sharp decline in fish stocks around Pemba Island, off the coast of Tanzania. To find a new income from the sea, women from Pemba are turning to sustainable seaweed farming, Mongabay’s video team reported in May. Seaweed farming was introduced to the island in 1989. It […]
Glass eel smuggling booms despite bans, leaving species on the brink
- The illegal trafficking of critically endangered European glass eels continues to thrive, generating up to 3 billion euros ($3.5 billion) in peak years, with more than 1 million live eels seized in 2023 alone — mostly en route to East Asian aquaculture farms where they’re raised to maturity to produce the delicacy unagi.
- Europol describes the trade as a highly organized transnational crime involving smuggling, document fraud and money laundering, with sophisticated players using scientific expertise to keep smuggled eels alive during transit.
- Conservationists warn that removing juvenile eels from the wild disrupts their life cycle and ecosystem functions, worsening the species’ 90% population decline since the 1970s and threatening biodiversity in connected marine and freshwater systems.
- Experts call for stronger enforcement, improved monitoring, public awareness and habitat restoration to combat the trade and avert further ecological damage.

Ghana to expand artisanal fishing zone amid trawler violations
Ghana has announced plans to expand the area in which small-scale fishers can operate, in response to persistent violations by industrial trawlers encroaching into this zone. The country’s inshore exclusion zone, or IEZ, will now extend 12 nautical miles (22 kilometers) from shore, up from 6 nmi (11 km) currently. Emelia Arthur, Ghana’s newly appointed […]
Tanzania’s Mafia Island eyes sea cucumber farming to prevent extinction
Residents of Mafia Island in Tanzania don’t really eat sea cucumber; they call it jongoo bahari, or “ocean millipede” in Swahili. But sea cucumbers are a prized delicacy in East Asia, where demand has fueled a black market for the spiny sea creatures, Mongabay’s Ashoka Mukpo reported in May. A kilogram of dried sea cucumbers […]
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.

When heat waves hit, clownfish shrink to survive, study finds
- Clown anemonefish (Amphiprion percula) have a surprising survival strategy: they shrink in length — not just lose weight — to survive marine heat waves and avoid social conflicts, boosting their heat wave survival odds by up to 78%, a new study finds.
- Researchers tracked 67 breeding pairs of clownfish in Papua New Guinea through a severe marine heat wave, measuring fish size repeatedly and finding that synchronized shrinking between mates helps maintain social hierarchies and improves survival chances.
- The study raises bigger questions about whether this shrink-to-survive mechanism is widespread among fish, potentially explaining global trends of shrinking fish sizes amid climate change, and calls for controlled lab experiments to uncover the physiological causes.

Peru’s new bycatch training aims to help save hooked sea turtles: Q&A with fisher Gustavo Rosales
- Sea turtles often get caught on hooks intended for mahi-mahi in the waters off the coast of southern Peru.
- The government is training fishers in best practices for releasing turtles, seabirds and other species accidentally caught by fishing gear.
- A 2022 regulation for the mahi-mahi fishery requires that at least one crew member per boat has obtained a training certificate.
- “If it weren’t for the turtles, there would be no balance,” says Gustavo Rosales, a fisher from the city of Ilo, who says the training has been beneficial.

On its 50th anniversary, ‘Jaws’ continues to provoke shark conservationists
- This month marks the 50th anniversary of the release of Jaws, a Hollywood blockbuster that depicts a series of attacks by a massive great white shark — a “man-eater” — in a fictional New England beach town.
- Shark populations have plummeted since the film was released, and experts agree that Jaws misrepresented the nature of sharks and likely had a net negative impact, however small, on their population sizes and conservation status.
- Most of the experts reached for this article said the film had spurred interest in sharks, some of which was channeled in positive directions. In fact, some people who worked on the film later advocated for shark conservation.

Another way to check the health of a coral reef: Study the microbes in the seawater
- An increasingly common way to keep tabs on coral reef health is by measuring microorganisms in the local seawater.
- Microbial-based coral reef monitoring is excellent at detecting nutrient and health changes on a reef and can draw attention to environmental disturbances; microbes are particularly good at sending such signals because they react quickly to pollution.
- This type of monitoring can help provide a fuller, faster and lower-cost picture of reef health than visual surveys alone, the most common current method.
- Two marine scientists explain the “why” and the “how” of microbial-based reef monitoring in a recent paper.

Endangered angelshark decline may be overestimated, study shows
Previous reports of drastic declines in the elusive angelshark in Wales, U.K., may be overestimated and may be partly explained by changes in fishing trends throughout the past decades, according to a recent study. The angelshark (Squatina squatina), listed as critically endangered on the IUCN Red List in 2006, is a bottom-dwelling shark that can […]
‘It’s our garden’: PNG villages fight to prevent mine waste dumping in the sea
- Communities in Papua New Guinea filed a lawsuit asking for a review of an environmental permit awarded in 2020 to companies for the Wafi-Golpu copper and gold mine. But a decision from the country’s Supreme Court had been delayed several times, before happening on June 12, even as other officials have signaled the government’s apparent support for the project.
- The villages are located near the outflow of a proposed pipeline that would carry mining waste, or tailings, from the mine and into the Huon Gulf.
- The companies say the method, known as deep-sea tailings placement (DSTP), would release the waste deep in the water column, below the layer of ocean most important for the fish and other sea life on which many of the Huon Gulf’s people rely.
- But community members are concerned this sediment and the potentially toxic chemicals it carries could foul the gulf — risks they say they were not adequately informed of.

French Polynesia creates world’s largest marine protected area
French Polynesia has announced the creation of the world’s largest marine protected area. Speaking on the first day of the United Nations Ocean Conference in France, French Polynesian President Moetai Brotherson said the MPA will cover the territory’s entire exclusive economic zone (EEZ), or 4.8 million square kilometers (roughly 1.9 million square miles). “We have […]
‘Madness’: World leaders call for deep-sea mining moratorium at UN ocean summit
- World leaders have renewed calls for a global moratorium on deep-sea mining at the 2025 U.N. Ocean Conference (UNOC) in Nice, France, as the U.S. moves to mine the deep sea in international waters under its own controversial authority.
- Four additional countries have joined the coalition of nations calling for a moratorium, precautionary pause, or ban on deep-sea mining, bringing the total number to 37.
- The U.S., which did not have an official delegation at UNOC, is pushing forward with its plans to mine in international waters — a decision that has drawn criticism from the international community.

Death of tagged white shark on bather protection gear in South Africa sparks debate
The recent killing of a juvenile great white shark on a drum line — a shark control method consisting of baited hooks attached to floating drums — off the east coast of South Africa has sparked a debate over the measures employed to protect swimmers at the expense of the threatened species. The 2.2-meter (7.2-foot) […]
In Nepal, northernmost sighting of Eurasian otter raises hope, concerns
- The northernmost Eurasian otter sighting in Nepal was recorded in the Karnali River, raising hopes for the species’ range expansion. But as the animal was found dead in a fishing net, conservationists highlight challenges to the species’ conservation.
- Researchers emphasize the rarity of such sightings in high-altitude, remote areas like Humla, where otters had been considered cryptic or absent for decades.
- The discovery builds on a series of recent sightings across Nepal, including in urbanized Kathmandu Valley, suggesting a wider distribution than previously known.
- Threats to otters include overfishing, poaching, hydropower projects, sand mining and net entanglement, all of which imperil not just the Eurasian otter but also Nepal’s two other otter species.

Bumble Bee asks court to dismiss lawsuit alleging forced labor in tuna supply chain
- In March, four Indonesian men filed a landmark lawsuit in the U.S. against canned tuna giant Bumble Bee Foods, accusing the company of profiting from abuse and exploitation aboard Chinese-owned vessels supplying its tuna.
- The plaintiffs described brutal conditions while working on vessels that allegedly supplied albacore tuna directly to Bumble Bee, including physical violence, inadequate food, lack of medical care and withheld wages.
- Despite claims of traceability and sustainability, Bumble Bee and its parent company, Taiwan-based FCF, have been linked to a network of vessels implicated in labor abuses. Critics argue the company failed to act on repeated warnings from rights groups and resisted regulatory changes.
- On June 2, Bumble Bee filed papers requesting the federal court handling the case dismiss it on legal grounds. The next step will be for a judge to decide whether to dismiss it or let it proceed.

In a big win, Yurok Nation reclaims vital creek and watershed to restore major salmon run
- Four dams are now down on the Upper Klamath River in northern California in the largest river restoration project in U.S. history. But a rarely mentioned cold-water creek is essential to restoring health to what was once the third-largest salmon run on the West Coast of North America.
- Blue Creek is located just 25 km (16 mi) from the mouth of the Lower Klamath at the Pacific Ocean. Critically, it’s the first cold-water refuge for migrating salmon that enables the fish to cool down, survive, and move farther upriver to spawn. The dams and logging have damaged this important watershed for decades.
- The Yurok, California’s largest Indigenous tribe, lost ownership of Blue Creek to westward U.S. expansion in the late 1800s. In 2002, a timber company, negotiating with the Yurok, agreed to sell back the 19,000-hectare (47,100-acre) watershed to the tribe.
- It took Western Rivers Conservancy, an Oregon-based NGO, nearly two decades to raise the $60 million needed to buy the watershed. In a historic transition, Blue Creek returns this spring to the Yurok for conservation in its entirety. The tribe considers the watershed a sacred place.

Villagers in Sumatra bring ancient forest flavors back to the table
- Women living around the 7th-century Muaro Jambi temple complex in Sumatra, Indonesia, have revived ancient ingredients and cooking techniques to serve one-of-a-kind meals to visitors.
- Their dishes are inspired by the plants and animals depicted on the bas-reliefs of another ancient Buddhist site: Borobudur in Java.
- The ancient menu has proved popular both among visitors and locals, who are rediscovering their agrobiodiverse heritage.
- The women have nurtured an ancient food forest and garden in Muaro Jambi to conserve the diverse wild plants and varieties in their menus.

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.

Marine artificial upwelling, problematic climate solution slow to advance
- Artificial upwelling is a form of geoengineering that aims to use pipes and pumps to channel cool, nutrient-rich water from the deep ocean to the surface. In doing so, it could fertilize surface waters, prompting the growth of plankton, which can then absorb and store large amounts of atmospheric carbon.
- Long considered a potential marine carbon dioxide removal (CDR) method, artificial upwelling has more recently been coupled with seaweed farming to potentially soak up even more atmospheric CO2.
- But technological challenges have plagued open-water upwelling experiments, while environmentalists worry that large-scale use could ultimately prove ineffective and ecologically harmful.
- Experts state that though upwelling could prove a viable solution to improve fisheries and protect coral reefs from marine heat waves, more research is needed. Considering the rapid current pace of climate change, it’s debatable as to whether implementation at scale could come in time to stave off dangerous warming.

Only a tiny % of the deep seafloor has ever been visually observed: Study
- Just 0.001% of the deep seafloor has ever been captured by photo or video images, a new study finds.
- That which has been captured is “biased” and potentially unrepresentative: 65% of observations have been in the waters of the United States, Japan or New Zealand, according to the study.
- Experts told Mongabay that policymakers at a wide range of international institutions should bear the study’s findings in mind, including those governing high seas fisheries, deep-sea mining, and the use of marine carbon dioxide sequestration systems.

New map highlights complex web of marine migrations
- Scientists have launched a new database on marine migratory patterns to address gaps in the knowledge of policymakers and conservationists.
- The Migratory Connectivity in the Ocean (MiCO) database pulled data from 1,300 existing studies in the scientific literature to describe the migratory patterns of 109 mammal, bird and fish species.
- The database highlights the interconnected nature of marine migrations, and underscores the need for cross-border collaboration in conservation efforts.

Tuna fishing devices drift through a third of oceans, harming corals, coasts: Study
- Drifting fish aggregating devices (dFADs) are floating rafts with underwater netting used by fishing vessels to attract tuna.
- A recent study estimated that between 2007 and 2021, 1.41 million dFADs drifted through 37% of the world’s oceans, stranding in 104 maritime jurisdictions and often polluting sensitive marine habitats.
- Strandings were most frequent in the Indian and Pacific oceans, with the Seychelles, Somalia and French Polynesia accounting for 43% of cases; ecosystem damage and cleanup costs fall on local communities.

In Pakistan, desert irrigation plans spark protests & fears among Sindh farmers
- In Pakistan, thousands of protesters have fought against the Cholistan Canal Project, which would divert water from the Indus River to irrigate millions of hectares of desert for corporate farming.
- Opponents say the project would threaten local desert species and leave small-scale farmers and fishers in Sindh province without the water they need; this comes on top of an existing water shortage in the region.
- Water has been one of the region’s most contentious issues, dating back decades and causing a rift between Sindh province and the Federation of Pakistan; now, the future of Pakistan’s water is even more uncertain since India suspended the Indus Waters Treaty of 1960, which governs shared waters between the two countries.

Central Java villages take fast fashion to the cleaners at Indonesia’s Supreme Court
- Indonesia’s Supreme Court recently confirmed the bankruptcy of the country’s largest textile group, Sritex, which made garments for global fast fashion retailers like H&M.
- The court also awarded damages to 185 people in Central Java province who had filed a class action suit against a Sritex subsidiary over toxic gas leaks and river pollution.
- More than 10,000 Sritex workers lost their jobs as the heavily indebted firm collapsed, but local residents say the environment has showed signs of recovery since the subsidiary stopped producing synthetic fibers near Java’s longest river, the Bengawan Solo.

The blobby little sea squirt that stowed away across the Pacific to California
- In 2023, scientists found a nonnative species of marine invertebrate in a private marina near Los Angeles, California.
- The arrival of this new member of California’s marine fauna highlights the massive, largely uncontrolled movement of marine species via ships that travel the world.
- Concerned about potential ecological and economic impacts, the state of California has tried to curb the movement of nonnative marine species through regulations of large ships and commercial ports, but the regulations don’t apply to smaller vessels.
- Beginning in 2025, California will have to comply with less-stringent federal biofouling and ballast water regulations.

Venomous snakes, freshwater fish among legally traded species most likely to become invasive in US
- The U.S., the largest importer of wildlife products in the world, brings in nearly 10,000 species of plants and animals into the country legally, some of which have a high potential to become invasive species.
- A recent study assessed these imported species and identified 32 as having the highest risk for becoming invasive, posing threats to local ecosystems and to human health.
- These include venomous reptiles like puff adders and spitting cobras, and freshwater fish; similar species that have already established themselves as invasives have wrought havoc on native wildlife and caused widespread economic harm.
- The researchers say their findings can help authorities regulate the imports of such high-risk species and add them to watchlists to prevent them from becoming invasives.

How extreme droughts could redefine the future of Amazonian fish
- The most severe Amazon drought on record, in 2023, followed by a new high in 2024, triggered multiple threats to Amazonian fish biodiversity, such as warming waters, loss of habitat, limited reproduction, and compromised growth.
- Fish are the main source of protein and other nutrients for those who live in the region; species most threatened by droughts include several that are important to local fisheries.
- Stronger droughts are already projected in the region in a scenario where global warming reaches 1.5°C (2.7°F); if it exceeds 2°C (3.6°F), the risk of prolonged, severe and frequent droughts increases significantly, with impacts on food security and Amazonian biodiversity.
- Short-term policies can be adapted to this new reality, such as adjustment of closed seasons, when fishing of certain species is banned; in the medium term, it’s crucial to invest in modernizing the monitoring of fish stocks, experts say.

New study maps the fishmeal factories that supply the world’s fish farms
- In April, scientists published the first-ever open-source map of fishmeal and fish oil factories around the world.
- The scientists found 506 factories across some 60 countries, and in most cases were able to identify the companies that own them.
- Fishmeal and fish oil production is controversial because it can incentivize the overexploitation of ocean ecosystems, depleting marine food webs, and negatively impact coastal communities that rely on fish for nutrition and livelihoods.
- In addition to location data, the scientists collected data on the types of fish many of the factories use and whether the raw material they process is fish byproduct or whole fish, which critics view as more problematic.

Community-led system boosts fisheries in a corner of fast-depleting Lake Malawi
Lake Malawi’s fish stocks are declining, but one community stands apart: around Mbenje Island, a traditional fisheries management plan has ensured thriving fish populations for generations, Mongabay contributor Charles Mpaka reports. Landlocked Malawi is highly dependent on the lake, which supplies 90% of the country’s fish catch; more than 1.6 million people rely directly or […]
Angling for answers, this saltwater fishing group boosts research for better conservation
- Though anglers aren’t generally thought of as environmentalists, many people who fish are conservation minded, whether because it’s an outdoor pursuit, or because they wish to ensure future harvests.
- Whatever their reasons, there aren’t many groups that help anglers advocate for sustainable fishing regulations based on solid science, nor ones that also work to generate new data that helps them argue for better conservation.
- “Until we came along, there was no voice for those saltwater anglers who cared about conservation, but didn’t have enough time to put into it to really understand it,” says American Saltwater Guides Association vice president Tony Friedrich.
- His team not only helps its members articulate the need for conservation and regulation, they actively participate in developing data that helps managers set better limits, through projects like their GotOne App.

European body proposes mass killing of cormorants to protect fish stocks
A regional fishery body is seeking to reduce cormorant numbers across Europe through “coordinated” culling, citing the aquatic birds’ reported impacts on fisheries and aquaculture. The European Inland Fisheries and Aquaculture Advisory Commission (EIFAAC), a body under the Food and Agriculture Organization (FAO) of the U.N., published its draft plan on April 25. The proposal […]
World’s top seafood firms lobby against ocean conservation measures: Report
- The world’s most influential seafood companies and industry associations mostly lobby against environmental protections, a report by the U.K.-based NGO InfluenceMap found.
- The report assesses the biodiversity-related lobbying efforts of a list of the 30 most influential seafood companies in the world and 12 of the main industry associations they’re members of.
- The vast majority of the companies and industry associations engage in lobbying that’s misaligned with international biodiversity goals agreed to in a 2022 treaty.
- Industry associations told Mongabay that they support science-based policy and that the report is flawed.

Dredging and pollution threaten fishing in the Niger River
- Some fishers in Bamako, Mali’s capital, are raising concerns about dredging of the Niger River in search of gold.
- They say the combination of dredging and increasing plastic pollution is causing fish stocks to decline.
- Damage to the river’s ecosystems is taking a toll on their livelihoods, with some forced to give up fishing for the more lucrative, but environmentally destructive, activity of river sand mining.

Scientists warn of S. Korea airport project’s impact on migratory bird habitat
Scientists have raised the alarm about biodiversity loss if construction of an airport near South Korea’s west coast begins as proposed this year. In an open letter published in the journal Science, they highlight the loss of migrating birds from the Sura area, the last remaining tidal flat within the once-thriving Saemangeum estuary, where saltwater […]
Warming seas and illegal trawlers threaten West Africa’s fishing future, study warns
A new paper paints a grim picture for the future of fishing communities in the Gulf of Guinea along coastal West Africa. Faced with increasing ocean warming and declining fish stocks, fishing communities in Ghana, Côte d’Ivoire and Nigeria struggle to survive. The paper’s authors advocate for income diversification among fishing communities as a critical […]
Study reveals untold, and unprotected, wildlife wealth of Nepal’s Madhesh province
- The first comprehensive vertebrate survey in Nepal’s Madhesh province has documented 163 fish, 24 amphibian, 578 bird and 90 mammal species, highlighting the region’s ecological significance despite a lack of protected areas.
- Infrastructure expansion and human-wildlife conflict pose challenges to the province’s biodiversity, fueled by rapid development of roads and railway lines.
- Researchers call for multilevel conservation strategies, including stronger wildlife laws, school-based awareness programs, establishing ecological corridors, and translocating conflict-prone species to tiger habitats.

Under Trump, US retreats from global fisheries and oceans leadership
- The United States has long been an international leader in fisheries and oceans science, with influence at international fora that it has sometimes wielded to support conservation measures and crackdowns on illegal fishing.
- However, U.S. influence at fisheries and oceans fora appear to be waning during the second Trump administration, which could compromise fisheries health and marine conservation, experts say.
- The administration, which took office Jan. 20, has begun to institute a program of budget and staff cuts at U.S. departments and agencies that work on fisheries and oceans governance, while turning away from or undercutting multilateral organizations.

Scientists warn coral restoration can’t keep pace with global reef collapse
- Coral restoration is vastly outpaced by degradation, while intensifying climate stress, prohibitive costs, poor site selection and lack of coordination make large-scale restoration currently unviable, a new study has found.
- The scale-cost mismatch is staggering: Restoring just 1.4% of degraded coral could cost up to US$16.7 trillion, while current global funding is only US$258 million.
- The study found most projects assessed prioritize convenience over ecological value, restoring easily accessed reefs instead of climate-resilient or biologically strategic ones, undermining long-term outcomes.
- Researchers say standardized data and smarter planning are urgently needed to ensure that global coral restoration is scientifically informed and strategically targeted, and not merely symbolic.

‘We belong to one ocean’: Indigenous leaders push for seat at the table of high seas biodiversity treaty
- Members of Indigenous peoples and coastal communities convened at the United Nations Permanent Forum on Indigenous Issues to call for their inclusion in the Agreement on Marine Biodiversity of Areas Beyond National Jurisdiction (BBNJ), also known as the High Seas Treaty.
- These are the first-ever calls by Indigenous and coastal communities as members attending the forum prepare for the entry into force of the BBNJ agreement.
- Their participation could include involvement in governance, environmental management, and best-practice strategies based on traditional ecological knowledge and values.
- The BBNJ agreement will enter into force once at least 60 countries ratify it. So far, 113 countries have signed the agreement, while 19 have ratified the treaty.

England’s flooded farmlands offer habitat, carbon storage & storm protection
When aging infrastructure failed to protect coastal farmland in southwest England from sea level rise, conservationists chose to embrace the flooding and created a new wetland reserve. Mongabay’s Leo Plunkett and Sandy Watt report in a recent Mongabay video that the newly created marsh has brought a host of benefits to the region. The Steart […]
Southeast Asia’s fisheries thrive despite decades of overfishing warnings: Study
- Overfishing in Southeast Asia’s coastal waters is a long-standing concern, but recent research suggests a more optimistic outlook, with 43% of marine stocks classified as underfished — 3.6 times higher than the global average.
- The study, covering stocks across the Indian and Pacific Oceans, highlights the region’s relatively abundant fisheries, particularly among pelagic species, 63% of which are underfished.
- Southeast Asia’s fisheries production surged by 7.1 million metric tons from 1993 to 2022, the largest increase globally, with Indonesia, Vietnam and Myanmar as major contributors.
- The research underscores the importance of small-scale artisanal fisheries that use nonselective methods to target multiple species, and co-management frameworks to maintain production and sustainability.

Oil companies have downplayed extent of spills in Gulf of Mexico, investigation finds
- Mongabay Latam and Data Crítica examined and compared official data of oil spills in the Gulf of Mexico, including satellite images by scientists studying oil spills and evidence compiled by fishing communities. Their analysis found that most oil spills are not reported.
- Occasionally, even the spills that are reported are played down. The volume of the Ek’ Balam oil spill in 2023 — the most serious spill in Mexico in recent years — was under-reported by 10 to 200 times, according to calculations performed by scientists using satellite images of the disaster.
- Between January 2018 and July 2024, the government of Mexico initiated 48 sanctioning processes against oil companies, but fines were only imposed in fewer than half of those cases. And only eight of those fines have been paid.
- Fishers are demanding oil companies release actual data and take responsibility and the government take action to protect their environment and livelihood.

Indian trawlers leave Sri Lankan small-scale fishers a ravaged, bereft sea
- Bottom trawlers from India’s southern state of Tamil Nadu have been encroaching Sri Lanka’s northern waters for years, carrying out destructive fishing practices that have caused serious depletion of fish stocks and damaged marine habitats.
- Meanwhile, Sri Lanka’s local small-scale fishers continue to struggle due to reduced catches, destruction of their fishing nets and financial loss while being forced to fish in limited nearshore areas or abandon fishing temporarily to avoid conflict with the trawlers.
- In this political bone of contention, Tamil Nadu has been demanding reclamation of Katchatheevu — an uninhabited island between India and Sri Lanka — to gain unrestricted fishing rights, and the past bilateral promises to phase out bottom trawling have gone unfulfilled.
- Sri Lanka banned bottom trawling in 2017 and now needs to take specific actions to prevent illegal bottom trawling in its northern waters to avoid the risk of fisheries there from collapsing.

Sweeping cuts and deregulation imperil U.S. fisheries, experts warn
- The United States has long had one of the best systems of fisheries management in the world, supporting 2.3 million jobs and a relatively high number of healthy fish populations.
- The Trump administration is enacting sharp cuts to the budget, staff and facilities of the agency that manages U.S. fisheries, the National Oceanic and Atmospheric Administration (NOAA), and on April 17 ordered widespread deregulation of fisheries.
- The administration says the changes are necessary to reduce government waste and fraud, save taxpayer money, create jobs and enhance profitability, but experts and former NOAA employees told Mongabay these moves have been poorly planned and will be “devastating” for U.S. fisheries.
- The staff cuts, regulatory changes and facilities downsizing are not easy for the public to track, raising questions about the transparency of the Trump administration’s moves.

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.

Mangroves mount a fragile green revival in Iraq’s toxic south
- Sea-level rise and upstream damming have worsened saltwater intrusion in the Shatt al-Arab River, pushing brine deep into Iraq’s interior and threatening agriculture, fishing and marshland ecosystems.
- A mangrove-planting project has been launched as a nature-based solution to combat coastal erosion, saltwater intrusion and pollution — threats that not only endanger Basra’s coastline but also the freshwater marshlands farther inland.
- Despite scientific backing and community support, the project faces significant obstacles like untreated sewage and industrial waste, while limited government support further hampers the project’s long-term viability and impact.

Vital Mekong fish corridors tracked for first time, but funding cuts threaten future research
- By implanting fish with small electronic transmitters, researchers were able to track key migration corridors in the Mekong River.
- The findings underscore the threat that dozens of planned dams along the Mekong will cut off these vital migratory paths.
- The study, which the lead author describes as a “pilot effort,” was funded by USAID; the funding gap caused by the U.S. foreign aid freeze leaves the future of such research in question.

Trump opens massive marine protected area to commercial fishing
U.S. President Donald Trump has signed a proclamation allowing commercial fishing in Pacific Islands Heritage Marine National Monument (PIH), a massive marine protected area home to threatened fish, sea turtles and marine mammals. The proclamation says U.S.-flagged vessels may now fish within 50-200 nautical miles (90-370 kilometers) inside PIH’s boundaries. While the proclamation and factsheet […]
In an ancient Javanese sultanate, coastal women battle climate fallout
- The coast of Demak district, the site of the first Islamic sultanate on the island of Java, has been inundated by the sea over decades owing to groundwater extraction and development.
- The erosion of human settlements is likely introducing new risks for women: “Our conclusion is that women and children, as well as poor families, including the elderly and disabled, are the most vulnerable,” a local legal aid nonprofit told Mongabay.
- Globally, around 90% of fish species are either fully exploited or overfished, and climate change is set to worsen the crisis by disrupting fish reproduction as oceans warm and acidify.

Fishing rights, and wrongs, cast small-scale South African fishers adrift
- A community of mixed-race families has lived and fished in South Africa’s Langebaan Lagoon since the 1800s.
- Starting with the former apartheid government in the 1970s, a series of conservation-oriented decisions ostensibly aimed at protecting fish stocks have slowly squeezed the number of these fishers allowed to operate in the lagoon.
- The government now says fish stocks have collapsed and it has reduced the number of small-scale fishers operating in the lagoon even further, while allowing recreational fishing to continue unimpeded. For their part, the fishers deny the stocks have collapsed, and blame declining catches on industrial developments.
- One expert likened the three-decade-long exclusion of the Langebaan net fishers to a case of fortress conservation, in which local people are squeezed out of nature and denied access to resources they’ve long used in order to preserve them for elites.

Even the Gulf of Aqaba’s ‘supercorals’ bleached during 2024 heat wave
- Scientists have long considered the corals in the Gulf of Aqaba in the northern Red Sea to be uniquely resilient to extreme temperatures.
- For the first time on record, however, the heat wave of 2024 bleached some of these super-resilient corals in Israeli and Jordanian waters, according to scientists.
- Scientists studying the episode’s severity and extent estimate that perhaps 5% of the corals in their study area in Israeli waters bleached during the oppressive Northern Hemisphere summer; a small fraction died, but most recovered over the relatively cooler months that followed.
- Tackling threats like pollution that could reduce the corals’ ability to withstand extreme heat is the best way to protect them from rising marine temperatures, and scientists say an oil terminal that sits barely half a kilometer from some of the “supercorals” poses an imminent threat.

Seychelles becomes first country to comply with fisheries transparency standard
- Seychelles, an archipelagic nation off the eastern coast of Africa, has become the first country to comply with the Fisheries Transparency Initiative (FiTI) standard that lays down what information about a country’s fisheries sector should be published online by public authorities.
- When it committed in 2016 to becoming FiTI-compliant, Seychelles signed up to provide complete and up-to-date information on its fisheries sector that would be useful not just to policymakers but also to civil society organizations and the public.
- Seychelles’ FiTI-compliant status signals marked improvements in data availability, but it doesn’t guarantee that all the information on the fisheries sector is complete and fully accessible, with experts pointing out that some critical gaps remain.
- For example, fishing access agreements struck between the Seychelles and other governments, industry associations and private companies are now available online, but critics say decision-makers remain unable to evaluate them fully.

Award-winning film highlights lasting damage from X-Press Pearl disaster in Sri Lanka
- “This Is Not a Pearl,” a short film by Sri Lankan filmmaker Tharindu Ramanayaka, uses a poetic narrative of a pearl oyster mistaking toxic plastic pellets, or nurdles, for her pearl to symbolize the environmental devastation caused by the 2021 MV X-Press Pearl disaster.
- The sinking of the MV X-Press Pearl off Sri Lanka’s coast released 1,680 metric tons of plastic nurdles, marking the world’s largest nurdle spill and triggering long-term damage to marine ecosystems.
- Scientific studies show that toxic chemicals from the spill continue to harm marine life, especially zooplankton like sea urchin larvae and copepods, threatening the broader ocean food web.
- Sri Lanka’s legal efforts for compensation, including cases in both Singapore, where the ship’s operator is based, and the Sri Lankan Supreme Court, remain unresolved; meanwhile, nurdles continue to wash ashore, requiring continuous cleanup efforts nearly four years later.

As Acapulco’s mangroves disappear, Mexico takes strides to protect its coastal forests
- One of Acapulco’s lagoons has experienced the near-complete loss of its mangroves due to urbanization and hurricanes.
- Another Acapulco lagoon has also lost portions of its mangroves, affecting the local fishing industry.
- Overall, the Mexican state of Guerrero has lost more than half of its mangroves since 1979.
- Mexico’s government is working with international organizations, scientists and local communities to restore the country’s lost mangroves.

Peruvian fishers sue for additional compensation after big December oil spill
- On Dec. 22, 2024, a pipeline leak at the New Talara Refinery in northern Peru spilled oil into the Pacific Ocean, coating 10 kilometers (6 miles) of coastline in black.
- Three days later, the Peruvian environment ministry declared a 90-day environmental emergency, paralyzing tourism and work for more than 4,000 artisanal fishers.
- Now, more than three months later, the fishers have returned to work on a sea dominated by the oil industry. They say the compensation they received from the refinery owner, state-owned oil company Petroperú, is insufficient and they are seeking more.
- For its part, the company says it has met its commitments.

‘Substantial’ transshipment reforms adopted at North Pacific fisheries summit
- The annual meeting of the North Pacific Fisheries Commission (NPFC), a multilateral body that manages most non-tuna fisheries in the region’s international waters, was held March 24-27 in Osaka, Japan.
- In a bid to deter illegal fishing, the NPFC’s nine members agreed to require independent observers on ships that transfer fish at sea.
- The parties agreed to study the impact of bottom fishing on ocean habitats and to protect two small areas on one seamount. They also increased transparency in the NPFC compliance process and reduced the total allowable catch for two key pelagic species.

Australia’s environment minister sued for failure to act on threatened species
Australian conservation NGO The Wilderness Society has launched a court case against the country’s environment minister, Tanya Plibersek, alleging her failure to put in place formal recovery plans for a number of threatened species. The public interest legal organization Environmental Justice Australia recently announced that its lawyers are representing The Wilderness Society in the federal […]
In Pakistan, sea level rise & displacement follow fisherfolk wherever they go
- Rising sea levels are displacing fisherfolk in Pakistan’s coastal areas, forcing them to move to higher ground, such as Karachi, where they now face saltwater intrusion and other climate impacts.
- For many, this displacement is not just about losing homes, but also cultural heritage, traditions and livelihoods, with women, in particular, losing economic freedom as fishing communities decline.
- The Pakistani government lacks a formal policy for the voluntary migration of climate refugees, and while efforts like mangrove restoration have been attempted, they have not significantly alleviated the fishing community’s problems.
- Karachi is projected to receive 2.3 million climate migrants by 2050, primarily due to rising sea levels, saltwater intrusion, and other climate-related catastrophes.

Panama conducts large illegal fishing bust in protected Pacific waters
- Panamanian authorities seized six longliner vessels on Jan. 20 for fishing illegally in protected waters. They also opened an investigation into an additional 10 vessels that surveillance data showed had apparently been fishing in the area but left by the time authorities arrived.
- The seizures took place in the Cordillera de Coiba, a marine protected area that’s part of the Eastern Tropical Pacific Marine Corridor, which connects several MPAs in four countries. It was the largest illegal fishing bust in the history of Panama’s MPAs.
- The vessels, whose activity is still under investigation, were Panamanian-flagged, meaning they were registered in the country, but the identity and nationality of the owners isn’t clear.
- The surveillance work in the case was done in part through Skylight, an AI-powered fisheries intelligence platform, and was supported by a group of fisheries monitoring nonprofits.

Researchers find new killifish species in Kenya
- According to a new study, a new species of killifish, Nothobranchius sylvaticus, has been found in seasonal swamps in the ephemeral marshes of Kenya’s historic Gongoni Forest at the coast.
- Scientists from Canada, France, Kenya and South Africa report that the severely restricted habitat of the seasonal Mkurumudzi River in southeastern coastal Kenya is threatening the survival of the fish species.
- The killifish, a unique species with iridescent blue scales, red markings and vibrant fins, has been deposited at the National Museums of Kenya and the Royal Museum for Central Africa.
- An expert is calling for the formal designation of the Gongoni Forest as a key biodiversity area and local communities’ engagement to protect the small freshwater fish, ensuring its recovery and avoiding threats.

How Peruvian cockfighters could tip the scales for endangered sawfish
- In Peru, where cockfighting is not only legal but regarded as an important cultural practice, cockfighters have long brought their roosters to fight wearing sharp spurs fashioned from the “teeth” of sawfish.
- The largetooth sawfish (Pristis pristis), the only sawfish that lives in Peru, is incredibly rare and considered critically endangered.
- Advocates for the species both within and outside the sport have increasingly realized that cockfighting plays a role in preventing or hastening its demise in Peru and are working to eliminate sawfish spurs from the sport.
- Although trade in sawfish parts is now illegal in Peru, times are tough for the country’s artisanal fishers. Experts worry that demand for sawfish spurs could drive more sawfish killings than the species can support.

5 takeaways from the 2022 Repsol oil spill in Peru
- On Jan. 15, 2022, the largest oil spill in Peruvian history occurred when a pipeline broke during the offloading of oil from a tanker to a refinery owned by the Spanish company Repsol.
- 11,000 barrels of crude oil spilled into the ocean off the coast of Callao, near Lima. It sullied miles of beaches, killed untold marine animals and upended the livelihoods of thousands of fishers.
- Three years later, the consequences of the tragedy persist, even as the oil industry’s activities along the coast of Peru continue to cause environmental disasters.
- These are the latest details of the case, which has continued to affect Peru’s marine ecosystem and the fishers who depend on it to survive.

Sumatran culinary heritage at risk as environment changes around Silk Road river
- Research shows that landscape changes across the Musi River Basin in Indonesia’s South Sumatra province risks food security across the river delta as fish stocks diminish and protein availability declines, including in the provincial capital, Palembang.
- Some fish traders and artisans in the city of 1.8 million worry culinary culture in Palembang is becoming endangered as rising sedimentation in the Musi River threatens the freshwater snakehead murrel fish.
- Reporting in March, during the fasting month of Ramadan, showed prices of food staples made from this fish increasing sharply from previous months as demand surged for fast-breaking events.

Conservationists, fishing industry find balance on protecting African penguins
Conservation NGOs and commercial sardine and anchovy fisheries in South Africa have reached an out-of-court settlement agreeing to extents of fishing closures around six key African penguin breeding colonies. The agreement, endorsed by the environment minister, was made a court order on March 18. The boundaries of the new fishing closures achieve “the sweet spot […]
Fish-tracking robot aims to make fishing more sustainable in developing nations
- Israeli scientists have developed a solar-powered underwater robot called SOUND that can roam autonomously for five days at a stretch, counting fish and communicating its findings back to observers onshore.
- The goal is to help local fishers in developing countries understand their fish populations so they can avoid overfishing and the capture of unwanted species.
- They tested the system in Malawi, among other locations, where fishers are facing a myriad of problems related to uncontrolled fishing.

Rep from American Samoa calls for opening protected Pacific waters to tuna fishing
- U.S. Congresswoman Amata Radewagen, who represents American Samoa, has urged the Trump administration to reopen most of Pacific Islands Heritage (PIH) Marine National Monument, a vast protected area in the Central Pacific Ocean, to industrial tuna fishing.
- Radewagen’s request came in a letter to President Donald Trump dated Jan. 23. It was accompanied by a background document that called for an executive order opening all Pacific marine national monuments and national marine sanctuaries to tuna fishing.
- Conservationists sharply criticized Radewagen’s move, while a tuna trade group supported it.
- Some details of the letter and background document, which Radewagen’s office shared with Mongabay, have not previously been publicly reported.

Seal ‘oceanographers’ reveal fish abundance in Pacific Ocean’s twilight zone
- The open ocean’s twilight zone, a vast deep ecosystem rich in fish biomass, is poorly understood because it is expensive and challenging for humans to reach its depths 200–1000 meters (660–3,280 feet) below the surface.
- A new study used northern elephant seals (Mirounga angustirostris) — marine predators that forage in the twilight zone — to help understand fish abundance deep down, both five decades into the past and two years into the future.
- The findings illustrate how apex marine predators, such as elephant seals, can serve as sentinels in understanding how fish abundance cascades through marine food webs.
- Given increased interest in fishing in the twilight zone and the unfolding effects of climate change, seals and other deep-diving marine predators could help keep an eye on changes in the oceans’ depths.

USAID funding cuts jeopardize creation of Ghana’s first Marine Protected Area
- The U.S. foreign aid freeze blocks the establishment of Ghana’s first Marine Protected Area (MPA).
- The MPA was being created under the Ghana Fisheries Recovery Activity (GFRA), a USAID-funded program that aimed to restore pelagic fish stocks crucial for the country’s food security.
- Ghana’s small pelagics, consisting mostly of sardines, anchovy and mackerels, make up about 60% of local fish landings and serve as a primary source of protein for almost two-thirds of the country’s population.
- The West African nation depended heavily on U.S. foreign aid to preserve its small pelagic fisheries sector, and without other funding, there could be cascading impacts on its economy.

Caribbean reef sharks rebound in Belize with shark fishers’ help
- Endangered Caribbean reef sharks (Carcharhinus perezi) and other shark species are making a striking recovery in Belize after plummeting due to overfishing between 2009 and 2019, according to recent observations.
- Experts say the establishment of no-shark-fishing zones around Belize’s three atolls in 2021 is what enabled the population boom.
- A remarkable cooperation and synergy among shark fishers, marine scientists and management authorities gave rise to the shark safe havens and led to their success, experts say.

Gas leak from BP platform off West Africa worries fishermen, environmentalists
In January, U.K. oil giant BP announced it had started producing gas from the Greater Tortue Ahmeyim (GTA) project, a natural gas production platform it operates off the coast of Mauritania and Senegal. A month later, Mauritanian media reported that a gas leak had been detected at one of the wells. In a statement shared […]
To save a Honduran reef, locals craft custom gear and hunt invasive lionfish
Without a natural predator, invasive lionfish, which damage coral reefs, have become widespread throughout the Caribbean over the last several decades. To prevent further harm off the northern coast of Honduras, locals have resorted to crafting their own spears to effectively and safely hunt lionfish, reports Mongabay contributor Fritz Pinnow. Julio San Martín Chicas, program […]
Fishing cat home range far bigger than previously thought, Nepal study suggests
- A GPS-collaring study in southeastern Nepal found that fishing cats could have much larger home ranges than previously recorded.
- Contrary to popular belief among local communities, some fishing cats were found to inhabit human-dominated landscapes, rather than only visiting them at night.
- Researchers suggest that low prey density in Nepal’s Koshi Tappu Wildlife Reserve and more accurate GPS tracking may explain the larger home ranges observed.
- The study highlights the need for community engagement in conservation, as fishing cats help control rodent populations and face threats from habitat loss and human-wildlife conflict.

Liberia to start industrial shrimp fishing, worrying artisanal fishers
- Liberia plans to expand industrial bottom trawling in the country by authorizing a new fishery for high-value shrimp.
- However, the government has released few details about the plan, including how much shrimp it will allow the new fishery to exploit, when the trawling would begin, or how it would be regulated.
- The country’s umbrella organization for artisanal fishers casts the move as a threat to the livelihoods, safety and food security of Liberia’s more than 57,000 artisanal fishers, as well as to the country’s marine life.

From Kenya to Madagascar, massive effort aims to put seagrasses on the map
In 2019, scientists set out to map the extent of seagrass in Seychelles, an island nation off the eastern coast of Africa. There, they hit upon a startling number: More than 90% of the country’s “blue carbon,” or the carbon stored in marine ecosystems, is contained within seagrass meadows. Under the Large-scale Seagrass Mapping and […]
Illegal sea fence displaces fishers and sparks land scandal near Jakarta
- A property developer installed 30 kilometers (19 miles) of bamboo fencing in the sea near Jakarta, blocking fishers’ access; an investigation revealed it encompassed 280 ocean plots for which title deeds had been illegally issued.
- The fence has forced many fishers to stop working, while coastal farmers have lost their land to the same luxury development; residents also face eviction with no clear alternatives.
- Authorities have sanctioned a handful of individuals from the public and private sectors and started revoking the illegal deeds, but activists are demanding criminal prosecutions against the companies responsible.
- The case highlights weak oversight of Indonesia’s national strategic projects, raising concerns over environmental destruction, loss of livelihoods, and government favoritism toward big developers.

India’s fisherwomen getting left behind by blue economy policies
Women make up nearly half of India’s marine fisheries workforce, yet policies to strengthen the country’s blue economy are leaving women behind, reports contributor Priyamvada Kowshik for Mongabay India. India’s draft blue economy policy framework aims to significantly boost the contribution of marine resources to the country’s GDP, and at the same time improve the […]
Thailand’s last sea nomads confront a changing world
MU KOH SURIN, Thailand — Ngui slips beneath the waves, his movements effortless and precise. He’s done this thousands of times, diving deep to find fish and crustaceans hiding beneath the coral shelves of the Andaman Sea. His catch today is different. A sheet of black plastic, snagged on a rock 50 kilometers (30 miles) […]
Endemic fish wiped out in Brazilian Amazon hydroelectric dam area, study finds
- The construction of the Balbina hydroelectric dam in the Brazilian Amazon led to the loss of seven endemic fish species in the Uatumã River, researchers have found.
- The hydroelectric dam has transformed the Uatumã River’s fast-flowing habitats into static environments, making them unsuitable for certain fish species.
- Researchers call for the investigation of unaffected tributaries, such as the Jatapu River, as possible refuges for the missing species and future conservation efforts.
- The study underscores the broader threat of hydropower dams and other environmental stressors, like industrial fishing and climate change, to Amazonian fish populations.

Illegal seabed dredging surges as Indonesia resumes sand exports
- Reports of unauthorized seabed dredging have surged following Indonesia’s decision to resume sea sand exports in 2023, raising environmental concerns and exposing weak marine law enforcement.
- Officials argue that removing sediment helps ocean health and prevents land buildup, but experts and activists warn the policy contradicts marine conservation efforts and lacks transparency.
- Dredging threatens mangroves, coral reefs, and fish populations, with projected losses to fishing communities far outweighing state revenue and corporate profits.
- Experts urge the government to reinstate the export ban, conduct thorough environmental impact assessments, and allocate funds for ecological restoration and affected communities.

Small-scale fishers’ role in feeding the planet goes overlooked: Study
- A new study found that small-scale fishing accounts for at least 40% of catch worldwide and provides employment for 60 million people, more than a third of whom are women.
- Small-scale fishing could provide a significant proportion of the micronutrient intake for the 2.3 billion people on Earth who live near coastlines or inland bodies of water, the study found.
- More than 60% of small-scale fishing catch in the studied countries came from places where small-scale fishers had no formal rights to participate in management and decision-making processes.
- “We wanted to have a paper that provided key findings at the global level for each of these dimensions, so that it will be clear for governments that small-scale fishing cannot continue to be overlooked in terms of policymaking,” one of the study authors told Mongabay.

Lawsuit is latest push to curb bottom trawling in protected European waters
- The fishing practice of bottom trawling continues in European marine protected areas (MPAs) despite conservation concerns over its destruction of seabed habitats and indiscriminate catches.
- Four NGOs have sued the Netherlands to stop bottom trawling in the Dutch section of Dogger Bank, an MPA in the North Sea, citing its ecological importance.
- Advocacy efforts across Europe, including other lawsuits, have led to some restrictions on the practice, such as the closure of the U.K. section of Dogger Bank to bottom trawling, but most European MPAs remain insufficiently protected, a 2024 study indicates.
- Fishing interests often disagree with the NGOs’ position on bottom trawling in MPAs, saying that regulated bottom trawling can coexist with conservation goals and support communities socioeconomically, and that blanket restrictions risk marginalizing fishing communities without addressing broader environmental challenges like pollution or climate change.

Mass salmon deaths hit Scottish farms as government investigates
- Hundreds of thousands of Atlantic salmon (Salmo salar) died on fish farms in Scottish waters in the final months of 2024.
- Poisonous jellyfish, disease and parasites were behind the mass mortality events, despite major investments by the salmon industry to combat these threats.
- In January, a parliamentary committee concluded an inquiry into the industry, saying it was “disappointed” by the lack of progress on environmental pollution and animal welfare issues.

Unchecked illegal trawling pushes Indonesia’s small-scale fishers to the brink
- Small-scale fishers in Indonesia face declining catches as illegal trawlers deplete fish stocks in near-shore waters, violating exclusion zone regulations.
- Trawling, a destructive fishing method banned in certain areas, is widely practiced due to weak law enforcement, with local authorities citing budget constraints for lack of patrols.
- The impact on traditional fishers has been severe, with daily catches and incomes plummeting, leading to economic hardship, job changes and social issues, such as increased poverty and divorce rates.
- Fishers and advocacy groups are calling for stricter enforcement of fishing laws and government action to protect small-scale fishers’ rights and livelihoods.

Study finds population crash for critically endangered European eel in Spain’s Ebro Delta
The critically endangered European eel population is facing collapse in Spain’s Ebro Delta, where populations have plummeted by more than 80% in recent years, according to a new study. The study’s authors warn this decline may be as severe, or worse, than the crash of the late 1970s and early 1980s when overfishing pushed the […]
The world’s kelp needs help — less than 2% is highly protected
- Kelp forests support a kaleidoscope of biodiversity and perform crucial ecosystem functions, yet they are in trouble globally.
- A recent journal commentary shows that just 15.9% of kelp forests are in protected areas, and only 1.6% of them are in areas with the highest levels of protection.
- The authors said they hope their findings will motivate policymakers to include kelp forests in international conservation targets, such as the “30×30” mandate to protect 30% of Earth’s land and sea by 2030.

Researchers find microplastics for the first time in the Finnish Sámi waters
- Scientists and Indigenous Skolt Sámi knowledge holders have detected microplastics in the lakes and rivers that the Indigenous Sámi communities have used for generations.
- The concentration of microplastics was small, researchers found, but it was still higher than the quantity expected, given that the area is thought to be pristine.
- The average size of the microplastics was 100 micrometers and concentrations ranged from 45 to 423 microplastic particles per cubic meter.
- While the source of the microplastics is unknown, researchers say one of the sources could be from the transboundary pollution accumulated in fish that come from the ocean to the freshwaters for spawning.

Underwater volcano in Barents Sea reveals diverse marine life, study finds
What’s new: Following the discovery of the underwater Borealis Mud Volcano on the Arctic seabed in 2023, researchers have now confirmed that the methane-spewing volcano is home to a diverse array of marine life thriving in the unique habitat. What the study says: In 2023, scientists from UiT The Arctic University of Norway discovered the […]
As global genetic diversity declines, conservation efforts offer some hope
Genetic diversity within many species is declining globally, according to a recently published study. “Any threat that reduces the size of a population, or which causes a larger population to become fragmented into two or more smaller populations, can cause a loss of genetic diversity,” lead researcher Catherine Grueber, from the Conservation Genetics Specialist Group […]
Underwater citizen science reveals the specter of ghost fishing in Thailand
- Teams of scientists and hobbyist scuba divers have assessed the extent of discarded fishing gear on Thailand’s marine wildlife, finding it poses a pervasive threat to a huge range of species.
- Discarded or “ghost” fishing gear comprises 10% of all marine plastic debris in the ocean, persisting for decades and passively catching and killing species from sea snails to whale sharks.
- Thailand is famed for its recreational diving, and efforts are underway to retrieve ghost gear from the ocean and rescue animals found entangled, as well as to work with fishers to help them recycle their old equipment.
- Experts say preventing gear from entering the ocean in the first place is paramount; solutions must extend beyond cleanup and recycling efforts to encompass policy reform, economic incentives, and improved infrastructure.

Marshall Islands protects ‘pristine’ Pacific corals with first marine sanctuary
The Marshall Islands government has announced it will protect an area of the Pacific Ocean described as one of the most “remote, pristine” marine ecosystems on Earth. The 48,000-square-kilometer (18,500-square-mile) marine sanctuary covers two of the country’s northernmost uninhabited atolls, Bikar and Bokak, and the surrounding deep sea, and it is the first federal marine […]
Salmon farms under fire on U.S. East Coast after being shuttered on West Coast
- An advocacy group has sued the last company in the U.S. still farming salmon in sea cages, citing alleged violations of the Clean Water Act.
- Cooke Aquaculture runs more than a dozen sites in the northeastern state of Maine. The lawsuit accuses the company of illegally discharging pollutants, exceeding limits on effluents and nutrient buildup, and reporting violations.
- The legal action comes the same month that the state of Washington banned industrial salmon aquaculture over environmental concerns, making Maine the only U.S. state where the practice continues.
- Critics argue that netpen salmon farming not only pollutes the marine environment but also threatens wild salmon populations, while requiring the harvest of too much wild fish and krill for feed.

The force is strong with new giant ‘Darth Vader’ sea bug found off Vietnam
What’s new: From the seafood markets of Vietnam, researchers have identified a species of giant crustacean or “sea bug” that’s new to science. They’ve named it Bathynomus vaderi, for its distinctly shaped head reminiscent of the helmet of Star Wars villain Darth Vader, according to a recently published study. What the study says: Bọ biển […]
Thai farmers demand action to restore ecosystems, compensate for invasive fish
- Citizens rallied in Bangkok this week demanding accountability and action from the government and private corporations following an outbreak of invasive fish that has ravaged Thailand’s freshwater ecosystems and aquaculture industry.
- Blackchin tilapia, an omnivorous species native to West Africa, is highly adaptable, breeds rapidly and is capable of outcompeting native wildlife and commercially farmed species, including shrimp.
- Thailand’s largest agricultural conglomerate has come under scrutiny because it obtained a permit to import the species in 2010, shortly before the first detections in the wild in the same province as its research facility.
- The activists urged the government to eradicate the species, compensate affected farmers and identity the parties responsible for the outbreak.

1 in 4 freshwater species worldwide at risk of extinction: Study
The most extensive global assessment of freshwater animals to date has revealed that a quarter of all freshwater animal species on the IUCN Red List are threatened with extinction. The largest number of these threatened species are found in East Africa’s Lake Victoria, South America’s Lake Titicaca, Sri Lanka’s Wet Zone, and India’s Western Ghats […]
2024’s top ocean news stories (commentary)
- Marine scientists and policy experts from nine international research and conservation institutions share their list of the top ocean news stories from 2024.
- Hopeful developments this past year include advancing innovations in mapping technologies, legal strategies and financial instruments to protect the ocean and greater inclusion of Indigenous peoples and coastal communities into high-level ocean planning.
- At the same time, 2024 was the hottest year on record as a result of climate change, surpassing 2023, and scientists declared the fourth global coral bleaching event, a major setback for the world’s coral reef ecosystems.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.

We need a North Pole Marine Reserve to secure a healthy future for Arctic waters (commentary)
- In 2024, the cod fishing moratorium on Newfoundland’s Grand Banks was lifted, 32 years after a historically significant ecological collapse of the fish’s population was caused by overfishing.
- The Central Arctic Ocean Fisheries Agreement signed in 2019 provides an example of how to address the threat from such overfishing by using the precautionary principle, international collaboration and science led evaluations of fish stocks.
- The future health of Arctic marine ecosystems can be secured by establishing a North Pole Marine Reserve, a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.

New evidence spells massive trouble for world’s sharks, rays and chimaeras
- A third of the world’s sharks, rays and chimaeras are threatened with extinction, and their numbers have dwindled since 1970, finds a new IUCN report and a study.
- Overfishing is the biggest threat to these marine fish, halving their populations in five decades, followed by the international trade in shark parts, habitat degradation and pollution.
- Scientists call for immediate actions to prevent extinction, regulate trade and manage shark fisheries to promote sustainability.

Campaigners celebrate as firm making first-ever GMO fish ceases operations
- AquaBounty Technologies, the first company in North America to get regulatory approval to sell a genetically engineered animal for human consumption — an Atlantic salmon spliced with genes from other fish — announced on Dec. 11 that it was closing its last facility, ceasing fish farming activities, and culling remaining stock.
- A coalition of conservation and Indigenous groups that had campaigned against AquaBounty celebrated the announcement, saying the company’s work posed environmental and public health risks.
- AquaBounty’s proponents contend that the salmon was completely safe and more sustainably produced than some farmed alternatives, and that decades-long campaigning against it had contributed to the company’s failure.

After trial and error, Mexican fishers find key to reforesting a mangrove haven
- David Borbón and his community are working to restore mangroves in a fishing village within Mexico’s El Vizcaíno Biosphere Reserve, one of the country’s largest protected areas.
- The mangroves act as a natural barrier, protecting the coastal community and ecosystems from hurricanes and other severe weather.
- Borbón, who wasn’t formally educated in any science, conducted a series of experiments to find the best method to reforest the area’s declining mangrove forests and settled on a direct sowing technique that replicates natural patterns.
- With the support of his family and community, he has now planted more than 1.8 million mangroves and largely facilitate the recovery of the mangrove ecosystem.

Pioneer expedition: new findings reveal the state of the Amazonian Rivers
AMAZON RIVER, Brazil – Those who have visited the Amazon know the importance that the rivers have to the local communities, whose livelihoods depend on them. They provide drinking and cooking water, abundant fishing opportunities, and vital transportation routes for people and goods. Simply put, the rivers are the heart of life in the Amazon. […]
‘These stories deserve to be told’: Shining a light on secretive fisheries managers
In 2024, the U.N.’s climate and biodiversity conferences, COP29 and COP16, drew the attention of more than 3,500 media delegates and 1,000 journalists, respectively. Though these massive global negotiations are consequential for international policy on the environment and have human rights implications, there were also international negotiations this year on managing the majority of 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.

‘Shifting baselines’ in Cabo Verde after 50 years of declining fish stocks
- In Cabo Verde, as in many low-income countries in Africa, the historical record of fish catch is incomplete, making it hard to know what’s been lost and what’s required to fully rebuild.
- In a new study, researchers interviewed fish workers to understand how catches have changed over the last five decades, finding evidence of a major decline in volume of catch and maximum size of key species.
- The study also shows that young fishers and fishmongers don’t fully realize the scale of the loss — a case of what scientists call “shifting baselines.”
- Fishing communities on the West African mainland tell a similar story of decline, pointing to the urgency of centering local knowledge when devising fisheries management and conservation policies.

Greater Mekong serves up 234 new species in a year, from fanged hedgehog to diva viper
- Researchers and local nature enthusiasts described 234 new-to-science species across the Greater Mekong region in 2023.
- Among the new assortment of critters are sweet-smelling plants, glamorous snakes, a dragon lizard, a psychedelic-orange crocodile newt, and several new mammals, including a mole shrew and a fanged hedgehog.
- The Greater Mekong is a fast-developing region of Southeast Asia, characterized by intensive agriculture, internationally significant inland fisheries and rapid urban expansion.
- As such, the newly described species and their habitats are under pressure from multiple threats, not least from the illegal wildlife trade that also flourishes in the region. Experts say consistent and concerted action is required to secure their future.

Water returns to Amazon rivers amid historic drought
The Amazon River and its tributaries, which make up the largest freshwater basin in the world, are showing signs of recovery after dropping to record-low levels between September and November 2024. Abnormally low rainfall and high temperatures across the Amazon caused water levels to plummet, shutting down river transport, isolating communities and leaving industries without […]
Research vessel E/V Nautilus spots multiple nautiluses for the first time
The crew of the research vessel E/V Nautilus erupted in excited chatter as they watched live video from a remotely operated vehicle traversing the German Channel in the Pacific island state of Palau. “It’s finally happened!” someone could be heard saying as the camera on board the ROV Hercules zoomed in to reveal a lone […]
Time for a ‘moral reckoning’ of aquaculture’s environmental impacts
Aquaculture is often promoted as a solution to declines in wild fish populations, and has outpaced the amount of wild-caught fish by tens of millions of metric tons each year. But it carries its own myriad environmental impacts, to the detriment of both humans and the ocean, says Carl Safina, an ecologist and author. He […]
First-of-its-kind crew welfare measure adopted at Pacific fisheries summit
- The organization that sets fishing rules for a swath of the Pacific Ocean covering nearly 20% of Earth’s surface and supplying half the world’s tuna catch held its annual meeting in Fiji from Nov. 28 to Dec. 3.
- Parties to the Western and Central Pacific Fisheries Commission (WCPFC) adopted a landmark crew welfare measure — the first binding labor rights measure adopted by any of the world’s 17 regional fisheries management organizations.
- The parties, 25 countries plus the European Union, also adopted a voluntary measure to implement electronic monitoring of catches.
- However, they didn’t adopt a proposal to curb potentially dodgy ship-to-ship transfers known as transshipments, or substantive new protections for sharks and seabirds, as NGO observers had hoped.

Construction of Indonesia’s new capital sees port activity crowd out fishers
- Construction of Indonesia’s vast new capital city on the east coast of Borneo has prompted a surge in port traffic in Balikpapan Bay, elevating existing pressures on the belt of mangroves lining the inlet.
- Local villages depend on near-shore fisheries within the inlet, but interviews indicate these communities are struggling to endure the increased port traffic and restrictions to fishing areas.
- District-level officials acknowledged that fishers face diverse challenges as a result of the new capital construction.
- However, they say they will seek redress for the destruction of any of the 16,000 hectares (39,500 acres) of mangroves in the bay area.

As Thailand’s blue swimming crabs decline, crab banks offer a sustainable solution
- Fishing of blue swimming crabs in Thailand has historically exceeded sustainable levels, leading to a decline in both the number and size of crabs that fishers were catching.
- Understanding the urgency of recovering the crab population, fishers, government agencies, NGOs and the private sector have rolled out a series of initiatives to make the fishery more sustainable.
- These include seasonal bans on harvesting egg-carrying crabs, restrictions on trawling and certain kinds of fishing gear, and the establishment of crab banks, where egg-bearing females are nurtured, with their hatchlings later released into a secure marine site.
- Fishers and experts welcome the crab banks, but emphasize the need for a “sustainable holistic scheme,” given that a reliance on crab banks alone won’t rebuild blue swimming crab populations.

Traditional fishers in Peru guard the coast from illegal fishing
- In Chimbote, north of Lima in Peru, fishers have been working for years to protect the Peruvian grunt (Anisotremus scapularis), a fish species in high demand for its meat, along a 1.5-kilometer (almost 1-mile) stretch of coast.
- Illegal fishing methods such as explosives have become common in this area, and the authorities have failed to deter them.
- The fishers, who use traditional methods to catch the grunt from shore, keep watch for illegal activities in the area in hopes that the species will not disappear.

Women in Putumayo turn to fish farming and away from the coca industry
- A women-led fish farming initiative in Colombia’s Putumayo department offers an alternative to the coca economy, challenging both environmental damage and traditional gender roles.
- Wedged between the Ecuadorian border and the fringes of the Amazon, Putumayo has long been heavily affected by armed conflict and coca cultivation, resulting in high levels of violence and human rights abuses.
- The initiative empowers women, challenging traditional gender roles in rural Colombia by providing stable, legal income and reducing dependency on the dangerous coca economy.
- Financial constraints, limited government support, lack of infrastructure, as well as persistent threats from armed groups hinder the development of alternatives to coca farming.

‘Tragic’ mass fish die-off devastates Amazon River channel amid historic drought
A mass fish die-off in Brazil’s Amazon River region has killed an estimated 20-30 metric tons of fish and other aquatic animals, following one of the worst droughts in Amazonian history. On the night of Nov. 12, fishers from the riverine community of Igarapé do Costa, near the city of Santarém in northern Brazil, began […]
Researchers find high levels of mercury in Amazon’s Madeira River water & fish
- In a groundbreaking expedition, researchers from Harvard and Amazonas State University began monitoring water quality and mercury contamination in the Amazon Basin’s largest tributary.
- The Madeira River Basin has been heavily impacted by human actions, such as hydropower plants, deforestation and illegal gold mining, which degrade its ecosystems.
- Initial results from Harvard reveal high levels of mercury in the Madeira, although still below the limit recommended by Brazil’s authorities.
- Predatory fish species showed mercury levels above the recommended limit, while scalefish traditionally consumed by riverine populations were below.

Conservationists see progress for swordfish, problems for sharks at Atlantic fisheries summit
- The International Commission for the Conservation of Atlantic Tunas (ICCAT), which manages a wide range of fish stocks across the entire Atlantic Ocean and adjacent seas, held its annual meeting in Cyprus Nov. 11-18.
- The parties adopted a “harvest strategy” for North Atlantic swordfish and developed harvest strategies for a number of other species that could be adopted in coming years, drawing praise from conservationists.
- They also came to an agreement on tropical tuna management after years of wrangling; the agreement included the loosening of rules governing the use of controversial fish aggregating devices that can lead to overfishing, in a concession to European industry interests.
- Dozens of member nations supported a rule that would have effectively banned shark finning, but Japan and China blocked the effort.

Leaders fail to address overfishing near Europe at ‘fraught’ international meeting
- The North-East Atlantic Fisheries Commission (NEAFC) held its annual meeting in London Nov. 12-15.
- NEAFC is a regional fisheries management organization, a multilateral body that controls fishing in international waters; its remit includes certain fish stocks in the Northeast Atlantic, near Europe.
- Among these, mackerel and herring have been overfished for years, yet NEAFC member countries did nothing to address the issue at the meeting.
- NGO observers have criticized NEAFC and its members for failing to address governance issues they say led to the overexploitation.

Overuse of antibiotics in Bangladesh aquaculture raises health concerns
- A recent study in Bangladesh reveals high rates of antibiotic resistance in pabda fish (Ompok pabda) bred by farmers through aquaculture.
- Consumption of antibiotic-resistant pabda fish may lead to the development of antibiotic resistance in humans as it exposes the food chain to multi-drug resistant (MDR) bacteria.
- Pabda aquaculture in Bangladesh produces around 20,000 metric tons annually, some of which is exported.
- Researchers are advocating educating farmers on the correct usage of antibiotics with the intervention of fisheries experts.

Scottish salmon farms seek growth despite mounting fish deaths and environmental concerns
- Scotland is the world’s third-largest producer of farmed Atlantic salmon (Salmo salar), after Norway and Chile.
- The industry is seeking to significantly increase production in Scotland, driven by growing export demand.
- However, it faces ethical concerns over mounting fish mortality, as well as environmental concerns about pollution, the proliferation of sea lice affecting wild salmon, and opposition from several local communities.
- Industry members acknowledge the challenge of growing salmon amid rising sea temperatures, but say Scottish salmon farms have made progress in managing sea lice and other health challenges.

A Ramsar site in Bangladesh fast loses its fish diversity amid government inaction
- Tanguar Haor, Bangladesh’s second largest Ramsar site and one of the country’s most important habitats of breeding fish, has been losing its fish diversity.
- A recent study found that the number of available fish species is now below 100 while, just two decades ago, the figure was recorded to be 141.
- Experts blame anthropogenic factors, including overfishing and habitat destruction, as the causes of declining diversity.
- However, authorities are ignoring the rising urgency for conservation and are instead celebrating the “increased fish production in the wetland.”

A father and son duo fight invasive lionfish on a Honduran reef
- Live coral covers 68% of Tela Bay, on the northern coast of Honduras, creating a complex ecosystem that’s part of the wider Mesoamerican Reef system.
- Among stressors including overfishing and coral bleaching due to climate change, is the invasive lionfish — a spectacular-looking, venomous, striped fish native to the Indo-Pacific that, with no natural predators here, is wreaking havoc on marine ecosystems throughout the Caribbean.
- To protect Tela Bay’s embattled coral reef, a local father and son are mounting a single-minded lionfish hunting effort to limit the fishes’ spread, hunting the fish themselves and organizing hunting competitions.

44% of reef-building coral species at risk of extinction: IUCN
Some 44% of the world’s warm-water, reef-building coral species are facing risk of extinction, according to the latest update by the IUCN Red List of Threatened Species. This is a significant increase compared to the last assessment in 2008, when a third were considered threatened. The latest assessment covers all known coral species that build […]
Mapping ‘gloop and mud’ sheds light on seabed carbon storage
- Two new reports showing the extent of carbon storage in the marine sediments around the coasts of Canada and the U.K. are helping to build the case for greater protection of the seabed, as part of efforts to mitigate climate change.
- They also highlight some of the threats to this underwater carbon sink, particularly sediment disturbance caused by bottom trawling, a fishing method.
- A new project funded by the U.K.’s Natural Environment Research Council is set to investigate whether or not continued disturbance poses the risk of turning the seabed into a source of CO₂.

Coral biodiversity hotspot at risk from fossil fuel expansion, report warns
- A new report warns that the expansion of oil, gas and liquefied natural gas projects in the Coral Triangle region in the Western Pacific risks unleashing more oil spills, direct damage to coral reefs, noise pollution and ship traffic, not to mention greenhouse gas emissions.
- More than 100 offshore oil and gas blocks are currently in production, and more than 450 additional blocks are earmarked for future exploration, according to the report. If these projects are approved, the production and exploration blocks would cover 16% of the Coral Triangle, an area the size of Indonesia, the report states.
- The report notes there is already overlap between oil and gas operations and critical conservation zones, including 16% of the Coral Triangle’s marine protected areas.
- The Coral Triangle is one of Earth’s most biodiverse regions, stretching across the waters of the Philippines, Indonesia, Malaysia, Papua New Guinea, Timor-Leste and the Solomon Islands. It’s home to 76% of all known coral species, as well as numerous endangered marine species.

An ‘ocean grab’ for a property megaproject leaves Jakarta fishers grounded
- On the outskirts of Indonesia’s capital city, farming and fishing communities face displacement due to the planned construction of Pantai Indah Kapuk II, a vast complex of commercial property and mid-range apartments on the northeast coast of Jakarta’s metropolitan area.
- Farmers and fishers told Mongabay Indonesia that the developer had restricted their access to the sea, and acquired land without paying fair compensation for the value of productive trees.
- Indonesia’s fast-growing urban population has led to a housing crunch in several cities across the archipelago, with the national backlog estimated at more than 12 million homes.
- The national ombudsman’s office said no local residents had yet filed a report over land acquisition, while the developers did not respond to requests for comment.

Indonesia fisheries minister eyes aquaculture expansion under Prabowo
- Indonesia’s new president, Prabowo Subianto, has retained incumbent fisheries minister Sakti Wahyu Trenggono to oversee expansion in productivity in captive fisheries over the next five years.
- Sakti has pledged to revive ailing aquaculture ponds, most of which are located on the northern coast of Java, where numerous village fishing economies are struggling amid depleted near-shore fish stocks and coastal development.
- In July, Indonesia’s then-vice president, Ma’ruf Amin, told a fisheries summit that climate change, biodiversity loss and environmental damage had hindered the output of near-shore fisheries in the world’s largest archipelagic country.

How a lineage of chiefs built a thriving fish oasis in Lake Malawi
- Lake Malawi accounts for more than 90% of landlocked Malawi’s total fish catch, and a key fishing ground is the water around Mbenje Island.
- The community here has since the 1950s practiced, and enforced, a fisheries management regime that continues to benefit both fishers and local fish stocks.
- Even as fish stocks dwindle and average fish sizes shrink elsewhere across Lake Malawi, around Mbenje Island the fish are bigger and fishers are “assured [of] a good haul.”
- The success of the management scheme is credited to the fact that it’s embedded within the community’s existing power structures, giving it “legitimacy among fishers as it has not been imposed from outside,” according to a researcher.

In Bhutan, a smoked fish tradition helps sustain a vanishing ethnic group
- Bhutan’s last remaining Olep hunter-gatherers rely on a traditional smoked fish, Nya Dosem, made from snowtrout (Schizothorax genus), to sustain their livelihoods.
- The community obtains special fishing permits to allow them to fish for these snowtrout, spending months along the Harachhu River and its tributaries in an area that is also home to the critically endangered white-bellied heron (Ardea Insignis).
- The Oleps’ fishing practices are monitored to ensure the local ecology is preserved, that spawning seasons are honored and that other local species are conserved; in this way, the environment sustains the Oleps, and the Oleps sustain the environment.

Salmon is ‘everything’ for Lummi Nation highlighted in new PBS documentary
- A new documentary, Scha’nexw Elhtal’nexw Salmon People: Preserving a Way of Life, premieres on PBS Nov. 4, following two Lummi families as they maintain fishing traditions amid declining salmon populations.
- In an interview, co-director Beth Pielert and Lummi fisher Tah Mahs Ellie Kinley discuss the film’s origins, salmon’s importance to Lummi culture, and current threats to wild salmon populations.
- For the Lummi people, salmon fishing is described as “everything” — it’s not just an activity but the foundation of their identity, with families tracing their lineage through traditional reef net sites and finding spiritual fulfillment in continuing ancestral practices.
- The filmmakers hope viewers will walk away with both understanding and hope, recognizing that while salmon face serious threats from fish farms and industrial development, there’s still time to protect these resilient fish that are essential to Lummi cultural survival.

Study maps owners of world’s high-seas ships often tied to illegal fishing
For decades, the owners of refrigerated container ships, or reefers, often associated with illegal fishing, have remained in the shadows. Now, a new study has traced 324 companies as the owners of 569 reefer vessels active between 2017 and 2022, identifying the people and countries behind these ships for the first time. Reefers are used […]
More krill fishing and no new protected areas for Antarctic seas after latest talks
- The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) held its annual meeting Oct. 14-25 in Hobart, Australia.
- The international body comprised of 27 members is charged with conserving marine life in Antarctic waters, an area that is changing rapidly due to human-caused climate change.
- In 2009, the CCAMLR pledged to create “a representative network” of marine protected areas in the Southern Ocean, yet negotiations over four proposed MPAs have been at a standstill for years, due to repeated vetoes by the Chinese and Russian delegations.
- Despite a year of interim negotiations, CCAMLR members failed again at the latest meeting to reach agreement on creating any new marine protected areas and rolled back regulation of the burgeoning Antarctic krill fishery.

Protecting coral reefs boosts fish numbers by 10%: Study
- New research has found that the protection of coral reefs has boosted the amount of fish they harbor by around 10%.
- The study used survey data from about 2,600 reefs with varying levels of protection from overfishing.
- The team then built a statistical model to predict what would have happened if all reefs had not been protected, and the biomass, or collective weight of the resident fish, dropped by more than 10%.
- The scientists note their findings demonstrate that protections like marine protected areas are working and that greater coverage could lead to even more gains in fish biomass.

New abuse allegations hit China ghost ships in Indonesia waters
- In mid-April this year, several Indonesian crew members aboard the China-based Run Zeng 03 fishing vessel jumped into the Arafura Sea following a pattern of alleged mistreatment on board.
- One of those who jumped didn’t survive, while the others were rescued by a fishing boat that happened on the crew members fighting for life in the water.
- Authorities in Indonesia may have missed opportunities to confine boats operated by Donggang Runzeng Ocean Fishing Co Ltd, a Chinese company based in a port on the country’s border with North Korea.
- The Indonesian fisheries ministry’s head of supervision explained in an interview that his history of contact with the manager of the boats’ operator was part of a law enforcement operation.

Climate change and agrochemicals pose lethal combo for Amazonian fish
- A recent study evaluates the impacts on the Amazonian tambaqui fish from simultaneous exposure to a mix of pesticides and an extreme climate change scenario.
- Researchers subjected the fish to higher temperatures and higher atmospheric CO2 levels, as well as a cocktail of two pesticides, a herbicide and a fungicide, all of which are commonly used in farms throughout the Brazilian Amazon.
- The tambaqui’s capacity to metabolize the agrochemicals was found to be compromised in warmer water, and they suffered damage to their liver, nervous system and DNA.
- The study also points to the risks to food safety in the region, where fish are the main protein source: some 400 metric tons of tambaqui are eaten every year in the city of Manaus alone.

Thailand’s budding mangrove restoration plans spark both hope and concern
- Mangrove restoration projects based on mass tree planting have often proved unsuccessful due to a focus on quantity rather than carefully selecting planting sites or prioritizing long-term social and ecological gains.
- Thailand’s state-led and corporate-funded restoration approaches have typically followed this unsustainable model, prompting critics to call for more ecological and community-based approaches that place more emphasis on natural regeneration.
- Several new national initiatives aim to improve mangrove management in Thailand: A collaborative public-private program called the Thailand Mangrove Alliance aims to bring 30% of Thailand’s mangroves under effective management by 2030.
- However, a new carbon credits initiative that aims to link coastal communities with corporate partners has drawn widespread skepticism from environmental groups, who warn the scheme could effectively transform public forests into corporate lands.

Javan fisherwomen lead fight against marine dredging amid fears of damage
- Fisherwomen on the north coast of Java Island are pushing back against plans to dredge sea sand for export, saying they fear it will worsen coastal erosion and harm marine ecosystems.
- Under a 2023 regulation, the government ended a 20-year ban on sea sand exports, sparking backlash despite claims that dredging will occur only in open waters.
- Communities in the north Java districts of Demak and Jepara, where fishing is the primary livelihood, say they are particularly concerned that dredging will severely disrupt their fishing grounds and harm their livelihoods.
- Experts also warn of long-term damage both to marine ecosystems and to the economy, including losses to fishers and the undermining of Indonesia’s marine carbon storage.

Brazil dredges Amazon rivers to ease drought isolation, raising environmental concerns
- Brazil has committed to dredge major Amazon rivers in response to record drought that has lowered water levels and made ship passage, a key transportation lifeline, difficult or impossible.
- The dredging is aimed at supporting local communities, who rely on river navigation to get supplies in from outside, and producers, who need to ship their commodities out.
- But experts question whether dredging is a sustainable solution, raising concerns about long-term ecological impacts and advocating for community involvement and innovative technology for better outcomes.
- The environmental risks of dredging include ecosystem disruption, increased erosion, water contamination, and harm to aquatic species such as manatees and river dolphins.

Plan for close season rings alarm bells for Liberia’s artisanal fishers
- Liberia revealed plans in May for a close season for fishing, but still hasn’t given any details of what it covers, whom it will apply to, or even when it will come into force.
- Policymakers say a pause in fishing activity is necessary to allow stocks to replenish, and is also an obligation for Liberia under a regional fisheries bloc whose other members have also planned or even implemented close seasons.
- Liberia’s small-scale fishers say the plan could be a solution to dwindling catches, but say there must be some form of livelihood support for them during the period when they can’t fish.
- They also say a close season must apply first and foremost to the industrial vessels that harvest a large amount of the country’s fish, including from nearshore waters that are supposed to be the exclusive domain of small-scale fishers.

Clock ticks on Indonesia shark skinners as predator population plunges
- Indonesia accounts for more sharks caught in open water than any other country, but fish stocks around the main island of Java are in crisis due to years of overfishing by large vessels using purse seine nets.
- In the fishing port of Brondong, a major landing site in East Java province, fishers continue to process dozens of species of sharks caught increasingly far from the world’s most populous island.
- Shark conservation is attracting increasing international attention because of the relative lack of protection and awareness of the predators’ roles in ocean ecosystems.

Global fisheries must change to avoid ocean collapse, study says
A new study by an international team of scientists finds that industrial fishing is driving the world’s oceans toward collapse. The report outlines 11 key actions needed to maintain healthy oceans, including the reduction of harmful fishing methods and keeping fish populations at 60% of their natural levels. One recommendation offered in the report is […]
Five times more marine fish may be at risk of extinction: study
What’s new: The number of bony marine fish species at risk of extinction could be five times higher than previously estimated by conservation scientists, a recent study suggests. What the study says: Bony fish, or teleosts, represent some 96% of the world’s marine fish species. The IUCN Red List of Threatened Species, the global reference […]
Maldives drops plan to reopen longline tuna fishing following protests
Longline fishing for tuna will remain closed in the Maldives, the island country’s president announced on Aug. 29. The decision came after local fishers, conservation NGOs and scientists protested against plans by the administration of President Mohamed Muizzu to reopen longline fisheries for yellowfin tuna and bigeye tuna. Longline fishing has been banned in the […]
Patents can serve as early-warning system for wildlife trade trends
Patent applications can reveal emerging trends in wildlife trade, a new study has found. From rhinoceros horns to pangolin scales, trade in wildlife is a highly lucrative business. In 2019, the legal global trade in wildlife was estimated to be worth about $107 billion. The illegal trade is thought to fetch between $7 billion and […]
Government inaction leaves Nepal without strategy to tackle invasive species
- A 2016 study ranks Nepal fourth globally in vulnerability to invasive species threats, particularly in agriculture.
- Yet despite drafting a management strategy to deal with the issue seven years ago, Nepal has still not finalized and implemented it.
- The country has identified 182 alien flowering plant species, with 27 considered invasive, affecting forests, agriculture and wildlife habitats.
- Experts stress the importance of swift action, noting that the window of opportunity to effectively manage invasive species is small.

Severe droughts isolate Amazon communities, study finds
The rivers of the Amazon Basin serve as highways for much of the region. Boats are often the easiest and quickest way to get goods and services in and out of remote communities and large cities alike. However, the Amazon Basin has experienced several severe droughts over the last 20 years, which have caused river […]
As southern African freshwater fish & fisheries struggle, collaboration is key (commentary)
- Freshwater fish populations in the Kavango and Zambezi (KAZA) river systems of southern Africa are in decline, so many stakeholders met last month in Namibia to share knowledge and suggest ways to address the situation.
- Of the many things shared during the conference, one message was clear: most fish stocks in KAZA are in trouble. Fewer fish means that the people and fish-dependent wildlife are also in trouble.
- “The challenges of fish conservation in KAZA are insurmountable if any of these stakeholders face them alone, but if they work together, it is possible to turn back the tide to restore fish populations and save the lives and livelihoods of our people,” a new op-ed contends.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

New species of skate is named, 35 years since its discovery off Madagascar
Toward the end of 1988, the Russian research vessel RV Vityaz visited a remote underwater seamount off the island of Madagascar. The researchers on board collected several specimens of sharks, skates and rays in a bid to understand the region’s marine life better. More than three decades later, scientists have confirmed that six of those […]
Brazil’s ‘Mothers of the Mangroves’ protect an ecological and cultural heritage
- Hundreds of women from traditional communities in the Brazilian Amazon use education and local knowledge to protect the world’s largest continuous belt of preserved mangroves.
- They organize forums, seminars and workshops to teach how to harvest sustainably from the mangrove ecosystem, such as fishing for specific species within certain periods to preserve the population.
- With the support of nonprofit organizations, they also engage in financial and entrepreneurial education to boost their income and get access to fair-trade markets, contributing to stronger environmental protection and sustainable development.
- Mangroves are vital ecosystems made up of salt-tolerant trees that prevent coastal erosion, store carbon, and support thousands of wildlife species and hundreds of communities; in the Amazon, they’re threatened by expanding monocultures and proposed oil exploration.

Recently hatched baby skate offers hope for endangered Tasman species
A captive-breeding program for the Maugean skate, one of the rarest marine fish in the world, has given researchers hope: a baby Maugean skate has hatched from an egg laid in captivity, for the first time ever. The Maugean skate (Dipturus maugeanus; formerly Zearaja maugeana) is today known to occur only in Macquarie Harbour, an […]
On Canada’s West Coast, clam gardening builds resilience among Indigenous youth
- The Nuu-chah-nulth Youth Warrior Family, also known as the Warrior Program, fosters leadership skills in boys and young men across several Indigenous Nuu-chah-nulth nations on the west coast of Vancouver Island in British Columbia, Canada.
- This youth-led program involves taking younger community members into ancestral lands for a variety of traditional activities, among them building and reviving clam gardens, an ancient maricultural method.
- Clam gardens consist of terraced rock walls built across small coastal bays that allow tidal sediment to accumulate and transform rocky or steep shores into flat, productive areas for clams. Clam garden construction and care, along with other cultural practices, such as hunting, spearfishing and medicinal-plant foraging, serve as rites of passage, helping Warrior Program youth reconnect with their heritage.
- This report’s companion video won 2nd place for Best Coverage of Indigenous Communities as part of the 2025 Indigenous Media Awards.

Shark ‘Fitbit’ captures rare footage of collision with boat
A Fitbit-like device has captured the first known footage of a boat striking a basking shark, according to a new study. The basking shark (Cetorhinus maximus), the world’s second-largest fish, is endangered due to historical overfishing and government culling programs. But sightings have increased off the coast of Ireland, where basking sharks aggregate to feed […]
WTO negotiations flounder — again — over banning unsustainable fishing subsidies
- The WTO’s General Council meeting in Geneva in July failed again to finalize a treaty to stop “harmful” fishing subsidies that enable unsustainable fishing, hindered by India’s objections.
- Only 81 out of 166 member states have formally accepted the partial “Fish One” agreement, and progress on “Fish Two” remains stalled.
- Harmful subsidies continue to deplete fish stocks, jeopardizing marine ecosystems and food security for 3 billion people.
- In light of the 25-year struggle for international consensus, some observers suggest states instead strike bi- or plurilateral agreements to eliminate harmful subsidies.

Sharks have cocaine in their bodies
Cocaine has found its way into sharks at sea, a new study has found. Researchers dissected 13 Brazilian sharpnose sharks (Rhizoprionodon lalandii) caught by artisanal fishers in the waters off Brazil between September 2021 and August 2023. All 13 sharks had trace amounts of cocaine, while 12 were positive for benzoylecgonine, one of the metabolites […]
Hydropower plants disrupt fishers’ lives in Amazon’s most biodiverse river basin
- The Madeira Basin has the most diverse fish life in the Amazon River Basin with 1,406 species catalogued, but human interference and the climate crisis are provoking a significant decline in fish stocks.
- According to scientists, the Madeira hydropower plants have affected the hydrological cycle downstream due to irregular pulses, impacting the migratory patterns of fish.
- These disturbances have reduced the annual catch of fishers by 39% in the municipality of Humaitá.
- In the Madeira River, fishing became more costly and demanding, with fishers needing to spend more days and travel farther to spots to maintain decent productivity, which led many riverines to illegal activities.

A tribe once declared ‘extinct’ helps reintroduce salmon to the Columbia River
- For thousands of years, Kettle Falls was a vital salmon fishing ground for the Sinixt, but early 20th-century dam construction blocked salmon migration.
- Wrongfully declared extinct in Canada in 1956, the Sinixt fought for recognition and were officially acknowledged as Aboriginal Peoples of Canada in 2021.
- In 2023, the U.S. government signed a $200 million agreement with a coalition of tribes, including the Sinixt, to fund an Indigenous-led salmon reintroduction program into the Columbia River system above dams in Washington.
- Sinixt leaders say this project is an important effort to help right a historical wrong in the legacy that led to their “extinction” status, while many hope to one day join salmon efforts on their traditional territory in Canada.

Shark fin consumption wanes in Thailand, yet demand persists, report shows
- A new study in Thailand reveals consumption of shark fin has declined by more than one-third since 2017.
- Yet significant demand for shark fin and shark meat persists: more than half of surveyed citizens said they plan to consume such products in the future, despite their understanding of the ecological risks associated with killing sharks.
- Besides shark fin soup, a popular dish served at social gatherings and weddings, conservationists are increasingly concerned about emerging markets for shark parts in pet food sold in Thailand.
- Marine conservation groups say besides continued public awareness campaigns, policymakers must do more to curb shark bycatch and improve traceability of products in the shark trade to protect vulnerable species at risk of extinction.

On heavily dammed Mekong, tracking study tries to find where the fish are going
- Despite the huge environmental and economic importance of migratory fish in the Mekong River, there’s been little empirical data documenting where and how fish travel within the Lower Mekong Basin.
- For a recent study, researchers teamed up with fishers in Laos to tag hundreds of fish with transponders before releasing them to continue their migrations.
- The study found that these fish travel hundreds of miles along the river, including through several active and planned hydropower projects in Laos.
- It also found that at least a portion of the fish were able to traverse a fish ladder on an existing dam.

How Europe’s only Indigenous group is inspiring a greener Christianity
- The Sámi are Europe’s only recognized Indigenous group, having hunted, fished and herded reindeer across Arctic Europe for millennia before the arrival of Christianity.
- Today, the Sámi are fighting across their territories to resist mining, logging and energy projects that disrupt traditional activities.
- Sámi thinkers and religious leaders are pushing Scandinavia’s national churches to become allies in their fight for self-determination.
- These churches are increasingly interested in better understanding Indigenous Christian theology like that of the Sámi, which may present an alternative to a traditionally anthropocentric worldview. Some churches and followers, however, are not convinced.

Sundarbans fisherfolk are battered by cyclones amid fishing bans
- Fishers in the Bangladesh Sundarbans have been struggling with income due to damage caused to the mangroves by the recent tropical cyclone Remal and also the seasonal ban on resource hunting from June to August.
- In every disaster, poor fisherfolk are entangled more in a complex debt trap for moving on, and this year, the situation is more aggravating as the cyclone hit just before the fishing ban started.
- Nonetheless, the government is adamant on continuing the ban for the sake of forest resource conservation.
- At the same time, the government is still in the planning stage of providing people food support during the ban period, as has been provided to sea-bound fishers during the hilsa harvest ban period.

As aquaculture hits historic highs, let’s ensure sustainability is prioritized (commentary)
- The latest State of World Fisheries and Aquaculture Report indicates that for the first time ever, nations are farming more seafood than they’re catching.
- According to the FAO, world fisheries and aquaculture production has surged to an all-time high of 223.2 million tons, marking a 4.4% increase from 2020.
- “Even as world fisheries and aquaculture production hit a new high, the FAO report also documents pressing challenges that need immediate attention,” a new op-ed from the Marine Stewardship Council states.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Global migratory freshwater fish populations plummet by 81%: Report
- A new global study reveals an average 81% decline in migratory freshwater fish populations between 1970 and 2020.
- Habitat loss, degradation and overfishing are the main threats to migratory fish, which are crucial for food security, livelihoods and ecosystems worldwide.
- While 65% of species have declined, 31% have shown increases, suggesting that conservation efforts and management strategies can have positive impacts.
- The report calls for stronger monitoring efforts, protection of free-flowing rivers, and meeting global biodiversity goals to address this crisis.

French Polynesians revive traditional rāhui to protect fish — and livelihoods
- In French Polynesia, fishing is of paramount importance. Many residents depend on fishing to feed their families and make a living.
- Confronted with a decline in fish stocks, communities across the country are reviving a traditional method of managing natural resources called rāhui.
- This bottom-up solution, managed by local communities with help from scientists and the government, although imperfect, appears to demonstrate some degree of effectiveness.
- The island of Tahiti currently counts 13 rāhuis, and more communities are establishing them as a way to fight poverty, sustain fishers’ incomes and regain their culture.

For the first time ever, we’re farming more seafood than we’re catching: FAO
- For the first time in history, we now farm more seafood than we catch from the wild.
- At the same time, overfishing of wild fish stocks continues to increase, and the number of sustainably fished stocks declines.
- Those are among the key findings of the 2024 installment of the flagship global fisheries and aquaculture report from the U.N.’s Food and Agriculture Organization (FAO). The biennial report provides data, analysis and projections that inform decision-making internationally.
- Sustainably growing aquaculture and better managing fisheries are central to the FAO’s “Blue Transformation road map,” a strategy for meeting the U.N.’s Sustainable Development Goal 14, which seeks to improve the social, economic and environmental sustainability of aquatic food to feed more people more equitably. However, progress is “either moving much too slowly or has regressed,” the report says.

Indonesia must integrate marine protection with fisheries subsidies, study says
- Indonesia must integrate marine protection measures into its subsidies for small-scale fishers, according to a new study.
- Despite claiming exemption from the 2022 WTO agreement to halt harmful fisheries subsidies, Indonesia needs a strategy to support small-scale fisheries and ensure marine sustainability.
- The government provides various supports, including insurance and fuel subsidies, and has made efforts to protect marine resources and boost fish stocks.
- The study suggests these subsidies should continue, as they are crucial for small-scale fishers’ livelihoods, while also enforcing marine conservation measures.

Indonesia’s Avatar sea nomads enact Indigenous rules to protect octopus
- For generations the Bajo sea nomads from Indonesia’s Sulawesi region have relied on catching octopus to meet their economic and nutritional needs.
- However, in recent years catch volumes have declined and locals worry that overfishing and increasingly extreme weather threaten livelihoods providing for hundreds of families.
- In response the community began enacting seasonal limits in late 2022, closing the fishery for months at a time and imposing minimum weight restrictions on octopus that can be collected during the fishing season.
- Anecdotal testimony from fishers Mongabay Indonesia spoke with suggests income growth resulting from the policy has outpaced the regional minimum wage.

From the Amazon to the Himalayas, an invasive catfish makes its Nepal debut
- Researchers discovered specimens of Pterygoplichthys disjunctivus, an Amazonian catfish, in a river in eastern Nepal, marking the first record of this species in the country’s rivers.
- How the fish ended up here remains uncertain, with possible explanations including religious release or upstream migration from India.
- Experts warn the presence of the species could severely disrupt Nepal’s freshwater ecosystems, due to the lack of natural predators and their potential to outcompete native species.

Caught in the net: Unchecked shrimp farming transforms India’s Sundarbans
- The Sundarbans region of India has experienced a significant shift from traditional agriculture to shrimp aquaculture due to erratic weather and increasing global demand for shrimp.
- This surge in shrimp farming has disrupted local communities, displacing them from their traditional livelihoods.
- The rapid expansion of shrimp farming in the Sundarbans is often conducted without proper scientific knowledge or technical training. Scientists warn that this will have long-term consequences.

Beekeeping helps villagers tend coastal forests in Thai mangrove hotspot
- Community-led approaches to mangrove restoration are increasingly recognized as more effective than many state- or market-driven initiatives in terms of both ecological and economic outcomes.
- Nestled within southern Thailand’s mangrove-rich but fast-developing Phang Nga Bay, the village of Ban Nai Nang has developed a mangrove conservation model based on beekeeping.
- By rearing colonies of native honey bees and stingless bees that are important pollinators of local mangrove trees, the villagers earn money from honey sales, which in turn fund their community mangrove conservation efforts.
- Since they began their beekeeping and conservation activities, they’ve observed signs of rejuvenation in their local mangrove forests and are now helping neighboring villages to follow their conservation model through training and mentorship.

Ghost nets haunt marine life in Malaysian marine park, study finds
- Ghost nets are lost or abandoned fishing nets that can take centuries to break down. In the meantime, they can damage delicate marine ecosystems and entangle and kill wildlife.
- In 2015, a local NGO started training volunteers to remove ghost nets washed up on the coral reefs and beaches of Tioman Island in Malaysia. The NGO also set up a hotline where anyone can report a ghost net sighting.
- From 2016-22, the volunteers retrieved a total of 145 ghost nets weighing 21 metric tons from Tioman Island’s waters. Analyzing data from these retrievals, a new study identified a spike in ghost nets during the COVID-19 pandemic.
- The authors call for better enforcement of laws against illegal fishing, tighter regulation of the buying and selling of nets, and more convenient ways for fishers to dispose of nets that are no longer useful.

Efforts to save Cambodia’s coast tread water as fish stocks plummet
- Along the coast of Cambodia, illegal fishing is driving fish stocks toward collapse and fishing communities into poverty.
- The Cambodian government’s capacity for and will to counter fisheries problems are minimal, and several government fisheries reform efforts are off track or behind schedule.
- As one multimillion-dollar foreign project to bolster government capacity and revive Cambodian fish stocks comes to an end, another is just kicking off.
- Whether these efforts to salvage Cambodia’s coastal resources will pay off depends on a range of factors and actors, but so far the plans implemented haven’t been enough to stave off the impending collapse of marine fish stocks.

Report: Illegal fishing and labor abuse rampant in China’s Indian Ocean fleet
- A recent report by the Environmental Justice Foundation (EJF) shows that the Chinese distant-water fleet is participating in illegal, unreported and unregulated (IUU) fishing and exploitative practices such as shark finning and human rights violations in the Southwest Indian Ocean.
- The report also suggests that Chinese investment in the blue economy in the Southwest Indian Ocean region could contribute to these problems by obligating indebted states to grant fishing rights to Chinese vessels.
- China has previously stated that it has a “zero-tolerance” approach to illegal fishing activities by its distant-water fleet, but evidence suggests that China isn’t taking adequate action to stop these issues.
- At the recent meeting of the Indian Ocean Tuna Commission (IOTC), China tried to introduce a proposal that would limit scrutiny of its distant-water fleet, but this was rejected by other parties to the commission — a move that founder and CEO of EJF called a “big win” in the ongoing work to document illegal fishing activities.

Restoring Indigenous aquaculture heals both ecosystems and communities in Hawai‘i
- The loko i’a system of native fishponds in Hawai‘i has for generations provided sustenance to Indigenous communities, supported fish populations in surrounding waters, and generally improved water quality.
- These benefits, long understood by native Hawaiians, have now been supported by scientists in a new study that looked at the restoration of one such fishpond.
- Unlike commercial fish farms, loko i‘a thrive without feed input and need little management once established — aspects that highlight the holistic thinking and values-based management behind them.
- The study authors say the finding is another step toward communicating Indigenous knowledge to support governmental decision-making, part of wider efforts across the archipelago to weave Indigenous and Western ways of knowing to heal both ecosystems and communities.

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