location: Pacific Ocean

location: Pacific Ocean

Social media activity version | Lean version

Rare fungi help restore Palmyra Atoll rainforests, new study finds. Here’s how
Palmyra Atoll in the North Pacific is one of the most remote island systems on Earth. A native rainforest tree on the island performs a critical ecological service by providing nesting sites for thousands of seabirds, whose guano fuels the surrounding coral reefs. But a new study revealed that this entire cycle depends on an […]
US moves to allow commercial fishing in Pacific marine protected areas
On June 11, U.S. President Donald Trump signed an executive proclamation to open additional commercial fishing grounds in remote areas of the Pacific. The proclamation says restoring access to these areas “will promote economic opportunity.” However, local groups warn it will open the door to overfishing in a crucial marine habitat and sacred cultural site. […]
New golf-ball sized blue octopus species now identified in the Galapagos
While on a deep-sea expedition in the Galapagos in 2015, scientists found a golf-ball sized, short-armed blue octopus. In a recent study, they confirmed that it’s new to science. The newly described octopus, named Microeledone galapagensis, was first sighted with a remotely operated vehicle (ROV) near an underwater mountain, roughly 1,773 meters (5,800 feet) below […]
From the wreckage of Super Typhoon Sinlaku, Pacific Islanders slowly recover
- More than one month after Typhoon Sinlaku, the strongest storm on Earth so far this year, people in the Western Pacific are slowly picking up the pieces of the wreckage.
- Officials are counting the number of people displaced, families are fishing to put food on the table, some schools are out, many remain without stable housing and electricity and thousands are applying for aid as recovery remains uncertain.
- In Chuuk State, the part of the Federated States of Micronesia hardest hit by the typhoon, emergency officials estimate that the storm destroyed or severely damaged more than 7,000 homes in Chuuk and Yap and displaced more than 13,000 people. The regionwide death toll has ticked up to 17, making Sinlaku the deadliest storm in the Micronesian region of the Pacific since 2002.
- A meteorologist said Sinlaku’s sudden escalation happened over ocean waters 0.6°Celsius warmer than average — temperatures made 70-100 times more likely due to climate change.

How we tracked China’s deep-sea mining fleet
- In March, Mongabay’s Elizabeth Claire Alberts and CNN International’s Kara Fox co-published an investigation into China’s deep-sea mining fleet’s ambitions and the alleged military dual uses of its oceanographic research ships. This project was supported by the Pulitzer Center, where Alberts was a 2024-2025 Ocean Reporting Network fellow.
- A key finding was that eight Chinese ships involved in deep-sea mining research only spent about 6% of their sea time over the last five years in internationally designated seabed mining areas, while spending the rest of the time elsewhere, including areas identified by Western experts as strategically important for military reasons.
- The investigation illustrates that the nascent deep-sea mining industry not only poses potential environmental risks, but also presents geopolitical implications.
- This article explains how Alberts and Fox worked together to undertake this investigation, which has drawn international attention and was cited or republished by outlets including The New York Times, Inkstick Media and Island Business.

As economic case for deep-sea mining weakens, industry should halt urgency to begin operation (commentary)
- Deep-sea mining in international waters is a unique proposition, given that the seabed is considered a global commons, so any extraction should be justified for the benefit of all humankind.
- But given the likely environmental and social costs and the increasingly weak economic arguments for it, its proponents must address why there is a supposed urgency to begin commercial production.
- “The financial case for deep-sea mining is being dismantled one argument at a time. As a small number of actors attempt to rush toward seabed mining, it is only a matter of time until more financial institutions join the momentum against [it],” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

New species of ghost pipefish named after Sesame Street character found in Australia
It’s “hairy,” bright orange or red and “exceptional” at camouflaging. Meet the hairy ghost pipefish, whose recent formal description demonstrates that even well-studied marine environments like the Great Barrier Reef still hold remarkable secrets for science. In a recent study, researchers shared the name of the ghost pipefish, Solenostomus snuffleupagus, for its “conspicuously shaggy appearance,” […]
US prepares to auction leases for seabed mining blocks in federal waters
- The U.S. government is preparing to conduct lease sales to auction off blocks of the seabed for deep-sea mining in federal waters of American Samoa, the Commonwealth of the Northern Mariana Islands, and Alaska.
- If the lease sales proceed, they would mark a major step toward commercial-scale deep-sea mining, making the U.S. one of the first players in the industry.
- While many oppose these plans to start mining the deep sea and say the government’s timeline is rushed, others are more supportive.
- A spokesperson for the U.S. agency managing the sales, the Bureau of Ocean Energy Management, told Mongabay it is pursuing this process in a responsible manner.

New conservation effort launched to protect coral reefs in Yap
Conservation groups have launched a new initiative to safeguard coral reefs in Yap, a state in the Federated States of Micronesia, through both scientific innovation and traditional stewardship. The Yap Resilience Hub, a partnership between The Nature Conservancy (TNC) and the Great Barrier Reef Foundation (GBRF), is a three-year project that seeks to support local […]
Marine conservation suffers when the ocean is not accessible to all, especially on remote islands (commentary)
- Coastal and marine systems across much of the world remain structurally inaccessible to persons with disabilities, older populations, and marginalized communities.
- If people protect what they value, and they value what they can experience, then marine conservation will be a low priority for these people, a new op-ed argues.
- “If the ocean is to be protected, it must first be experienced, but for millions of people, it remains fundamentally out of reach,” the author writes.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

At world’s largest shark conference, scientists warn of a grim outlook across the board
- Hundreds of researchers and conservationists met in Colombo from May 4-8 for Sharks International, held once every four years.
- Major topics at the conference included the trade in shark and ray meat, reducing shark bycatch, and the use of new technologies in conservation.
- Participants also highlighted innovative programs that encourage community-based conservation, and grappled with the contentious topic of closing fisheries to aid recovery of threatened species.

Tierney Thys, marine biologist and interpreter of the sunfish
- Tierney Thys spent decades studying the giant ocean sunfish, using its improbable form to ask broader questions about life in the open ocean.
- Trained as a marine biologist, she moved between research, filmmaking, and public storytelling, helping make complex ecological processes accessible to wider audiences.
- In later years, her work extended beyond the sea, linking issues such as textiles and microplastics back to ocean health.
- Across her career, she returned to a central concern: how people come to value the natural world, and what sustains that commitment over time.

NPFC adopts illegal fishing measures — but no Emperor Seamount protections
- The 10th annual meeting of the North Pacific Fisheries Commission (NFPC) took place April 14-17 in Osaka, Japan.
- While the NPFC members enacted new measures to combat illegal, unreported and unregulated fishing, leading NGOs criticized the commission for failing to act on bottom trawling in the Emperor Seamount Chain, a biodiversity-rich volcanic submarine mountain range in the Northwest Pacific.
- Some NPFC members and observers also expressed disappointment about backtracking on stock management and conservation for the Pacific saury, which is targeted by fishing fleets of several member countries.

Chile’s plan to protect another 10% of its ocean is stalled by the new government
The expansion of two vast Pacific marine parks near Chile has been suspended for six weeks, leaving protections for around 337,000 square kilometers (130,000 square miles) of ocean in limbo. Former President Gabriel Boric signed a decree creating marine parks Juan Fernández II and Nazca-Desventuradas II on March 10, his last day in office. Together […]
AI tool listens for endangered orcas in real time to reduce human disturbance
- An AI initiative is listening to southern resident orcas in real-time to help them steer clear of vessels and noisy coastal construction.
- OrcaHello builds on a network of underwater microphones to detect orcas and push out alerts that have helped pause coastal construction and redirect boat traffic as the orcas pass by.
- Southern resident orcas are considered an endangered subspecies, with only 76 remaining individuals.
- Major threats to the species include a decline in their food sources, primarily Chinook salmon, along with noise pollution and vessel traffic.

Drones aid dugong conservation as threats mount across their range
- Drone technology is revealing new information about the elusive dugong, a marine herbivore classified as globally vulnerable but already extinct in parts of its range.
- Scientists are using drones to improve estimates of dugong numbers and conduct noninvasive health checks.
- Dugongs feed exclusively on seagrass meadows, where their foraging helps to maintain these important carbon sinks.
- Researchers are highlighting the need to link efforts to conserve seagrass meadows with protecting dugongs.

Deep-sea wildernesses are more important than the promise of seafloor mining (analysis)
- A scientist who was part of a major 2008 expedition exploring the promise of deep-sea mining writes in a new analysis that what they found offshore of Papua New Guinea ended his enthusiasm for the nascent industry.
- The biodiversity documented by their remotely operated vehicle — added to the fragility and uniqueness of the geology and ecology they documented — was clearly too special to perhaps permanently decimate for electric vehicles and renewable energy.
- “I entered this project in good faith, working with the mining company to help determine whether or not deep-sea mining at Solwara I could be conducted with minimal harm to the marine environment. I exited convinced that there is no viable path forward for hydrothermal vent mining, anywhere in the ocean.”
- This article is an analysis. The views expressed are those of the author, not necessarily of Mongabay.

Council recommends opening US Pacific marine monuments to commercial fishing
A U.S. fishing regulator recently recommended allowing commercial fishing across all four of the country’s Pacific marine national monuments. The Western Pacific Regional Fishery Management Council (Wespac) said the move is “about restoring sustainable fishing.” Conservationists and native peoples, however, say it will damage some of Earth’s most pristine ocean ecosystems. The monuments — Pacific […]
Migratory species summit adopts new marine protections amid extinction warnings
- Delegates to the latest meeting of the Convention on Migratory Species of Wild Animals adopted new protections for 40 migratory species, including 33 marine animals like sharks, seabirds and shorebirds.
- The convention’s 15th Conference of the Parties (COP15), held in Brazil March 23-29, recognized the importance of “marine flyways” for migratory birds and highlighted key marine biodiversity areas.
- It also urged protection of seamounts from destructive fishing practices and a precautionary approach on deep-sea mining to address potential impacts on migratory species.
- Conservation advocates lauded the steps taken at COP15, but the summit also issued stark warnings that extinction and species decline are accelerating.

Is the Galápagos damselfish extinct?
- A once-common reef fish in the Galápagos has not been seen since 1983, raising the question of whether it has already disappeared.
- A recent study by Jack Stein Grove and colleagues concludes the species is likely extinct, based on decades of failed searches and historical records.
- Its disappearance is linked to the severe 1982–83 El Niño, which disrupted the islands’ nutrient cycles and food webs.
- The case highlights how even well-known marine ecosystems can lose species quietly, with declines only becoming clear in hindsight.

American Samoa said ‘no’ to deep sea mining, Washington heard ‘faster’ (commentary)
- The U.S. government is moving fast to grant leases to corporations for deep sea mining in places like the territory of American Samoa: once issued, these are very difficult to rescind.
- Leaders there have weighed in against this lease on cultural and environmental grounds, but the federal agency in charge has merely acknowledged this dissent while continuing to move forward.
- “American Samoa is not a test case; it’s at risk of becoming the federal government’s blueprint” on deep-sea mining licensing, a new op-ed states.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Marine flyways are the missing map we can use to boost seabird conservation (commentary)
- At the 15th Conference of the Parties to the Convention on Migratory Species last week in Brazil, delegates formally established something scientists have long understood but never before mapped at a global scale: marine flyways used by seabirds.
- Seabirds are more than charismatic travelers along these routes, rather, they are indicators of ocean health and can guide conservationists to the most important areas for marine biodiversity.
- “Seabirds have been tracing these routes for millennia. They have shown us the map. Now it is our turn to follow it with urgency, ambition and a shared commitment to safeguarding the ocean that sustains us all,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the authors, not necessarily of Mongabay.

Traditional protection proves more successful for clams in American Samoa
- A study found that on the most populated island in American Samoa, traditional village-based protections and remote sites had the highest density of giant clams — outperforming federally designated no-take zones in one case.
- The authors suggest that traditional community stewardship could offer a viable alternative to federal restrictions, especially in areas communities rely on for giant clam harvesting, while respecting traditional management practices.
- The giant clams, which are slow-growing, face threats from habitat degradation, ocean warming, watershed pollution and overharvesting.
- The NOAA National Fisheries Service proposed protections for several giant clam species in 2024 which could lead to a top-down ban on harvesting. Some sources say a blanket ban without including communities in conservation strategies would impact people who rely on harvesting.

The squid rush in the South Pacific is forcing regulators to act
A recent annual meeting of the fisheries regulator for the South Pacific tackled a familiar challenge: how to manage one of the world’s largest squid fisheries before mounting pressure turns it into a depleted one. The meeting produced some new safeguards, though much of the hard work still lies ahead, reports Francesco De Augustinis. The […]
China’s deep-sea mining fleet may also track US submarines
A Mongabay and CNN investigation found the eight Chinese state-owned ships that conduct deep-sea mining research in China’s mining areas allocated by the International Seabed Authority (ISA) actually spent little time in these exploration areas, while spending much of their remaining time operating in militarily strategic waters. Many of these vessels are linked to the […]
The ocean’s enforcement gap
- Governments have designated vast marine protected areas and pledged to conserve 30% of the ocean by 2030, enforcement often lags behind these commitments.
- Research shows that the ecological benefits of marine protected areas depend less on their size than on whether rules are visible, monitored, and enforced.
- New tools—such as satellite imagery, vessel-tracking systems, and data analytics—are making it easier and cheaper to detect illegal fishing and focus enforcement efforts.
- As monitoring improves, the future of ocean conservation may depend less on creating new protected areas than on ensuring existing rules are consistently applied.

Modest controls put on freewheeling squid fleet at South Pacific fisheries meeting
- The 14th meeting of the South Pacific Regional Fisheries Management Organisation (SPRFMO) took place in Panama City from March 2-6.
- The intergovernmental organization regulates fishing activities in the high seas of the South Pacific, a vast area encompassing about 59 million square kilometers.
- Key decisions concerned tightening regulation of the jumbo flying squid fishery following increased fishing activity and signals of overfishing, and adopting measures to reduce illegal fishing practices and labor abuses in the squid fleet.
- Decision-makers also took steps toward finalizing a new management procedure for jack mackerel. Negotiations over regulating bottom trawling, a source of disagreement at recent SPRFMO meetings, remained stalled.

25 years after ‘disaster’ declaration, major U.S. fishery makes a comeback
- In 2000, the U.S. commerce secretary declared the groundfish fishery on the U.S. West Coast a “disaster,” with 10 key species overfished to below a quarter of their healthy levels.
- Fisheries authorities empowered by federal conservation laws took drastic action: They cut off vast tracts of the ocean to trawling, slashed fishing quotas and bought fishing vessels to remove them from operation. Many fishers were thrown into painful retirement.
- Careful management and innovation in the intervening years has led to a remarkable turnaround: In October 2025, fishery officials declared the last of the 10 overfished species to be rebuilt, years earlier than expected, and fishers have catches they thought would never be possible again.
- Even so, fishers’ profits have been low, and experts worry that key conservation programs could lose their teeth to cost-cutting measures and deregulation.

Trump opens only US marine national monument in Atlantic to fishing — again
- U.S. President Donald Trump issued a proclamation on Feb. 6 to open the Northeast Canyons and Seamounts Marine National Monument, a marine protected area off the northeastern U.S., to commercial fishing.
- Trump wrote that reopening the area will not endanger marine species and will help the fishing business, and industry groups praised the proclamation.
- Conservationists decried the move, saying the monument is a critical sanctuary for marine life and the food webs that serve the interest of the U.S. public.
- The Trump administration has also moved to deregulate the other U.S. marine national monuments, which are in the Pacific Ocean.

Vanuatu communities move to protect taro, an ancestral climate-resilient crop (analysis)
- Taro is a traditional food of Vanuatu, and its culture over millennia has resulted in several hundred indigenous varieties. But cassava is more commonly grown nowadays, even as communities rely increasingly heavily upon imported food.
- A key reason that communities are now fighting to reinvigorate taro cultivation is because it’s more resilient to climate shocks: In recent years, severe storms have led to the tiny nation’s islands being cut off from food shipments, but those with healthy taro crops were able to feed themselves and others.
- “To the extent that ancient farming techniques continue to provide resilience in the face of a changing climate, it may also be a taste of the future,” an author who visited Vanuatu last year argues.
- This post is an analysis. The views expressed are those of the author, not necessarily of Mongabay.

Ocean set ‘alarming’ new temperature record in 2025
- Ocean temperatures set a record high in 2025, according to a new study.
- The authors found that the heat content of the ocean increased by about 23 zettajoules between 2024 and 2025. That’s roughly the equivalent of 210 times humanity’s annual electricity generation.
- The ocean has warmed significantly in recent decades largely because it absorbs roughly 90% of the excess heat trapped in the atmosphere by human-caused greenhouse gases. That makes the ocean a key indicator of global warming.
- Warming ocean temperatures contribute to sea-level rise and to extreme weather events, which were frequent in 2025.

Study tracks fishing boats to see how heat waves affect fish distribution
- A new study suggests an early way to detect ecological shifts during marine heat waves: Use fishing vessel tracking data.
- The study found that tracking data could provide early detection of extreme northward and inshore shifts in albacore tuna and Pacific bluefin tuna distribution in response to heat waves and showed when such shifts weren’t happening despite high sea surface temperatures.
- The authors position fishers as “apex predators” and build on research that finds that predators are good ecosystem sentinels.

Methane chasers: Hunting a climate-changing gas seeping from Earth’s seafloor
- Methane is a potent greenhouse gas that can pack more than 25 times the global warming punch of carbon dioxide, and atmospheric methane emissions have been growing significantly since 2007. So it’s vital that humanity knows how and where methane emissions are coming from, including the world’s oceans.
- Scientists first raised the alarm over methane releases from shallow waters in the Arctic Ocean between 2008 and 2010. But recently, they were surprised to discover new releases in shallow waters off Antarctica. Researchers continue spotting additional seafloor seeps there and elsewhere, as methane bubbles escape seafloor sediments.
- In shallow waters, methane bubbles that break the ocean’s surface add greenhouse gases to the atmosphere, but to learn how much climate risk these bubbles pose, scientists first have to find them. The hunt for methane bubbles requires everything from underwater microphones and sonar maps to scuba divers and submersibles.
- Methane seeps are more than a potential climate change threat. They also form the basis of unique chemosynthetic ecosystems that influence the deep sea and may hold clues about the origin of life. Finding and studying those seeps present fascinating challenges, requiring ingenuity and creative thinking by researchers.

Deep-sea ‘hotels’ reveal 20 new species hiding in Pacific Ocean twilight zone near Guam
- Scientists from the California Academy of Sciences retrieved 13 underwater monitoring structures from the deep reefs off the Pacific island of Guam, which have been gathering data there at depths up to 100 meters (330 feet).
- The devices, called ARMS (Autonomous Reef Monitoring Structures), yielded 2,000 specimens, including 100 species never before recorded in the region and at least 20 species new to science.
- Temperature sensors on the ARMS revealed that ocean warming is occurring even in the twilight zone.
- The Guam expedition marks the start of a two-year effort to retrieve 76 ARMS from deep Pacific reefs to help protect these ecosystems from fishing, pollution and climate change.

Elizabeth Erasito, custodian of Fiji’s parks and places
- Conservation in small island states is portrayed as a political and administrative challenge shaped by limited land, scarce resources, and external pressures, where development choices often carry irreversible consequences.
- In Fiji, protected areas were expected to deliver conservation, public access, cultural continuity, and economic value at once, while facing storms, fires, invasive species, and illegal extraction with limited capacity.
- Elizabeth Erasito’s career at the National Trust of Fiji centered on making protection work in practice, managing a modest but significant network of parks and heritage sites with an emphasis on monitoring and enforcement rather than expansion.
- She argued that parks should remain accessible and grounded in everyday life, and that short-term development gains rarely justified long-term damage, valuing steady institutional endurance over visible triumphs.

George Teariki-Mataki Mateariki, the Birdman of Atiu, has died, aged 67
- In small island states, conservation often hinges on daily vigilance rather than formal institutions, where routine tasks like watching harbors and checking traps determine whether endemic species survive invasive threats. Such work is repetitive, underfunded, and easily overlooked, yet decisive.
- In the Cook Islands, late-20th-century bird recoveries paired outside science with local enforcement, showing that plans mattered only insofar as they were sustained on the ground at airstrips, wharves, and forest edges.
- George Teariki-Mataki Mateariki, known as Birdman George, embodied this approach by monitoring birds, trapping predators, and responding quickly to changes, helping establish Atiu as a refuge for the critically endangered kakerori and later the Rimatara lorikeet.
- Through guiding visitors, sharing practical knowledge, and maintaining constant vigilance, he treated conservation as prevention rather than rescue, asking not for admiration but for attention, and making extinction less likely through persistence rather than spectacle.

Century-old corals reveal the Pacific Northwest is acidifying faster than expected
- When compared with historical samples, corals show that the Salish Sea and California Current System are acidifying faster than anticipated because of greenhouse gas emissions. Models indicate that at this rate, carbon dioxide levels in the oceans will continue rising faster than concentrations in the atmosphere.
- Increasingly acidic seas pose growing risks to sensitive marine life, from clams and oysters to any organism with a spine, as well as economically important fisheries and the communities that depend on them.
- British marine ecologist Stephen Widdicombe calls the threat existential. Our continued failure to cut emissions can only lead to “a world where uncontrolled climate change including ocean acidification leaves us with an ocean that is less productive, less diverse and less able to provide humans with the wealth of services that we currently all benefit from,” he said.

Pacific fisheries summit gives a boost to albacore & seabirds
- The Western and Central Pacific Fisheries Commission (WCPFC), a multilateral body that sets fishing rules for an area that covers nearly 20% of the planet, held its annual meeting Dec. 1-5 in Manila, the Philippines.
- The parties adopted a harvest strategy for South Pacific albacore (Thunnus alalunga) that will set near-automatic catch limits based on scientific advice, considered a best practice in fisheries management. Conservationists celebrated the move.
- The parties also adopted a measure that aims to keep seabirds from drowning on industrial fishing lines.
- They didn’t adopt any new rules on the ship-to-ship transfer of fish and other goods at sea, a practice known as transshipment that’s been linked to illegal fishing and other illicit activity.

Philippines’ newest marine protected area ‘sets inspiring example’ (commentary)
- Nestled in the heart of the Coral Triangle, one of the most biodiverse marine regions on the planet, Panaon Island is a jewel of the Philippines’ natural heritage.
- Despite its biodiversity, Panaon Island faces growing threats, so a broad coalition of community leaders, environmental advocates and government agencies have rallied to designate the waters surrounding it as a new marine protected area (MPA).
- But safeguarding marine habitats requires more than designations and new maps. “Marine protected areas need proper funding, active monitoring and strong enforcement to prevent illegal activities from undermining conservation,” a new op-ed says.
- This article is a commentary. The views expressed are those of the authors, not necessarily of Mongabay.

Deep-sea mining interests raise alarms among Mariana Trench communities
- On Nov. 12, the Bureau of Ocean Energy Management (BOEM) issued a request for information (RFI), indicating its interest in “leasing” marine minerals located on the CNMI’s outer continental shelf, a process that would allow commercial mining to proceed on the seabed of the Commonwealth of the Northern Mariana Islands (CNMI).
- Critics say BOEM’s handling of the RFI was rushed and opaque, noting that the agency failed to consult the CNMI and Guam governments or communities before opening a brief 30-day window for public comment.
- Critics also warn that deep-sea mining could irreversibly harm the marine environment and undermine the region’s deep cultural ties to the ocean, while amounting to another form of U.S. colonial exploitation in the Pacific.

Another threat to reefs: Microplastic chemicals may harm coral reproduction
- Plastic pollution is a growing problem in many reef ecosystems, and its effects are not well understood.
- Most previous research has focused exclusively on adult corals and their interactions with plastic particles, rather than larval stages of coral or the chemicals from plastic that leach into water.
- In a new study, researchers exposed coral larvae from two different species to four different plastic chemicals and found that they negatively impacted coral larvae settlement.

Lost at sea, found in Latin America: the journeys of discarded plastic bottles
- A regional study led by citizen scientists reveals the scope and sources of plastic bottle pollution along Latin America’s Pacific coast.
- Central America hosts the most polluted sites, where high population density and limited recycling infrastructure drive plastic buildup.
- Bottles traced to distant continents show how maritime currents spread waste across borders.
- Researchers suggest implementing standardized bottle return systems while highlighting citizen science as a tool for environmental action.

Healthy oceans are a human right (commentary)
- In 2022, the United Nations affirmed the basic human right to a clean, healthy and sustainable environment.
- The idea is straightforward: people’s fundamental human rights to health, food, security and even life rely on a healthy environment.
- But we are still far from ensuring that these rights are protected for the coastal communities living with the consequences of ocean decline every day, a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Solar-lights protect sea turtles from fishing nets, Mexico trials show
- Researchers from U.S. and fishers from Mexico’s Gulf of California have developed solar-powered LED buoys that attach to gill nets to help reduce sea turtle bycatch by 63%.
- The floating devices recharge in sunlight and can operate for over five days without light, addressing cost and waste concerns associated with traditional battery-powered lights and single-use chemical light sticks.
- Researchers say the green flashing lights may help sea turtles see the nets in dark water.
- The technology emerged from collaborative workshops between scientists and fishing communities, with commercial production estimated within two to three years through partnership with fishing gear manufacturer Fishtek Marine.

For sharks on the brink of extinction, CITES Appendix II isn’t protective enough (commentary)
- Listing shark species under CITES Appendix II, which allows for well-monitored sustainable trade, has helped to save some sharks from extinction. But some species are so threatened that they need to be listed on Appendix I, which bans all trade.
- New research has revealed that many fins belonging to sharks protected by Appendix II are still being sold in large numbers in Hong Kong, one of the biggest markets, supporting the need for action on Appendix I listings for some species at the CITES COP20 meeting that commences next week in the Uzbek city of Samarkand.
- “Governments meeting at COP20 in Uzbekistan should follow the science, support these proposals, and help save these sharks and rays from the brink of extinction. It’s the only way to give these species a fighting chance at survival,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Expedition charts Cook Islands seafloor, amid scrutiny over mining motives
- Between Oct. 1 and 21, a U.S government-funded vessel, the E/V Nautilus, conducted an expedition in the Cook Islands’ exclusive economic zone (EEZ), following an agreement between the U.S. and the Cook Islands to “advance scientific research and the responsible development of seabed mineral resources.”
- During the 21-day expedition, the E/V Nautilus mapped more than 14,000 square kilometers (5,400 square miles) of the Cook Islands’ seafloor while also documenting deep-sea biodiversity.
- Environmental activists protested the expedition, arguing it would help accelerate deep-sea mining in the Cook Islands. The crew of the E/V Nautilus, however, rejects the accusation.
- The Cook Islands government has issued three deep-sea mining exploration licenses, which will expire in 2027. One company operating in the Cook Islands has said it hopes to apply for an exploitation license in 2027.

On first International Day of the Deep Seabed, we seek stewardship and consensus (commentary)
- “I could not be more delighted to celebrate this inaugural International Day of the Deep Seabed,” writes the secretary-general of the International Seabed Authority (ISA) in a new op-ed at Mongabay.
- On Nov. 1, 2025, she notes that the world will for the first time mark a day that celebrates the great biodiversity of the planet’s mysterious deep seabed and its potential role in the future of humanity’s progress, while reiterating that consensus-building among member states and nongovernmental actors remains critical to ensure its stewardship.
- “Together, by delivering on our commitments under the Law of the Sea, we can ensure that this last great frontier remains a source of wonder, discovery, opportunity and shared benefit for all humankind,” she argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Drone surveys offer early warnings on whale health and survival
- Scientists have deployed drones and are using photogrammetry to determine how climate change is impacting the health of whale populations.
- By collecting the measurements of whales, scientists are able to track how environmental factors impact the growth and reproduction of right whales off the coast of New England and orcas in Alaska.
- Using the data, they found that a marine heat wave in 2013 reversed the revival of the population in Alaska that had plummeted after the Exxon Valdez oil spill in 1989; they also noticed that the whales didn’t grow as much as they should have.
- The method also enabled scientists to detect pregnant whales well in advance, allowing them to monitor if the pregnancy was successful or not.

Northeast Pacific endures fourth-largest marine heat wave on record
The Northeast Pacific ocean, off the U.S. West Coast, is experiencing its fourth-largest marine heat wave since record-keeping began in 1982. “The extent of the current Pacific marine heatwave should be surprising … but unfortunately, record breaking heat is our new norm,” Chris Free, a marine scientist at the University of California, Santa Barbara, told […]
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 […]
Post-Blob, California’s kelp crisis isn’t going away
- Kelp forests function as major habitat for marine biodiversity, but are in rapid decline worldwide, largely because of climate impacts on the oceans.
- A 2013 marine heat wave known as “the Blob,” combined with the mass die-off of sea stars, caused a 95% loss of Northern California’s kelp forests.
- The loss of sea stars allowed the purple urchins that they thrive on to spread rapidly, converting lush kelp forests into “urchin barrens” in parts of California. There’s been very little recovery since.
- Restoration of kelp forests is extremely difficult and requires far more resources than are currently being committed.

Deep-sea mining is a false solution to our challenges (commentary)
- A new op-ed argues that the case for deep-sea mining is weak and also that the facts used by its proponents don’t add up, but rather cloud their judgment.
- The divergence between scientific understanding of likely ecological harms and prevailing narratives — like the touted economic benefits, which could actually be costs — came into sharp focus at the recent annual meeting of the International Seabed Authority, which governs the development of this industry.
- “Given the high costs and severe environmental risks, why then pursue deep-sea mining? This activity threatens unique deep-sea ecosystems and could irrevocably alter ocean health, impacting life on land,” the author writes.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

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.

Microbiomes may be corals’ secret weapon against climate change: Study
- Researchers compared how genetically similar populations of Pocillopora corals cope with heat stress in Panama’s Gulf of Panama and Gulf of Chiriquí, both on the Pacific coast.
- The team looked at the entire holobiont — the coral’s symbionts, microbiome and physiology — in addition to its genome and environment, finding that the holobiont may play an outsized role in boosting the corals’ ability to cope with heat extremes.
- The team found that corals exposed to upwelling in the Gulf of Panama were better able to withstand higher temperatures, thanks in part to their microbiomes.
- The work points to the importance of better understanding how symbiotic relationships and microbiomes interact with corals to increase their resilience.

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.

A sales-pitch pivot brings deep-sea mining closer to reality
Early on, Canada-based The Metals Company cast the rocks it seeks to mine from the deep seafloor as a crucial resource for electric vehicle batteries and other green technologies, positioning them as a solution to the accelerating climate crisis. However, in 2024, another message overtook the first in TMC’s communications, according to an analysis by […]
Challenges persist in TMC’s bid to mine the deep sea, even after boost from Trump
After years of delay, the deep-sea mining plans of Canadian firm The Metals Company (TMC) now appear to be progressing as it pursues a controversial new path to securing a license to mine in international waters under U.S. jurisdiction. Yet critics and some industry observers question how smoothly TMC’s ambitious plans might unfold, citing the […]
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.

Feeds: news | india | latam | brasil | indonesia