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Kristina-Maria-Gjerde. Image courtesy of the Deep-Ocean Stewardship Initiative (DOSI).

Kristina Gjerde, defender of the deep ocean, has died

Rhett Ayers Butler 26 Dec 2025
Scalloped hammerhead sharks (Sphyrna lewini), photographed in Yonaguni, Japan.

Top ocean news stories of 2025 (commentary)

Alfredo Giron, Ana Spalding, Erin Skoczylas, Vanessa Constant 24 Dec 2025
Community members plant red mangrove (Rhizophora mangle) propagules in Hanging Site as part of a restoration effort.

Huge ‘blue carbon’ offsetting project takes root in the mangroves of Sierra Leone

Edward Carver, Mohamed Fofanah 23 Dec 2025

As Cyclone Ditwah battered land, Sri Lanka’s oceans absorbed a silent shock

Malaka Rodrigo 23 Dec 2025
Shark meat is prepared for distribution at CEAGESP in São Paulo city. Image by Philip Jacobson/Mongabay.

Mongabay shark meat investigation wins national journalism award in Brazil

Mongabay.com 23 Dec 2025
Vermillion rockfish and soft coral observed during an expedition in Channel Islands National Marine Sanctuary.

Century-old corals reveal the Pacific Northwest is acidifying faster than expected

Elizabeth Fitt 22 Dec 2025
Bee Smith, from her Instagram account.

Bethany “Bee” Smith, researcher who documented a megamouth shark alive, died in a diving accident, aged 24

Rhett Ayers Butler 22 Dec 2025

A flood of logs post-Cyclone Senyar leaves Padang fishers out of work

Jaka Hendra Baittri 20 Dec 2025
A southern sea otter.

Zombie urchins & the Blob: California sea otters face new threats & ecosystem shifts

Christine Heinrichs 19 Dec 2025
Artisanal fishing boats. Image by Mongabay Latam.

Drug gangs in Ecuador and Peru also involved in shark fin trafficking: Report

Shanna Hanbury 19 Dec 2025
A sewage outlet in Bangkok.

Marine heat waves and raw sewage combine to put human health at risk

Sean Mowbray 18 Dec 2025

The lab-in-a-backpack busting illegal shark fins: Interview with Diego Cardeñosa

Philip Jacobson 18 Dec 2025
A child touches a freshly caught albacore tuna in Vairao, Tahiti, French Polynesia, in January 2024. Image by AP Photo/Daniel Cole.

Pacific fisheries summit gives a boost to albacore & seabirds

Edward Carver 16 Dec 2025
Healthy reef off the coast of Panaon Island. Image courtesy of Danny Ocampo / Oceana.

Philippines’ newest marine protected area ‘sets inspiring example’ (commentary)

Antha Williams, Loren Legarda 16 Dec 2025

West and Central Africa tackle coastal erosion

Adrienne Engono, Carolle Ahodekon, Charles Kolou, Christophe Assogba, Roland Klohi, Rosie Pioth 16 Dec 2025

Seafloor survey in Cambodia finds simple anti-trawling blocks help seagrass recover

Keith Anthony Fabro 15 Dec 2025
Artisanal fishers pull in a fishing net.

Artisanal fishers in Liberia question benefits of new tracking devices from government

Edward Blamo 15 Dec 2025

Study finds more ‘laggards’ than ‘leaders’ among high seas fisheries managers

Edward Carver 12 Dec 2025

Global manta and devil ray deaths far exceed earlier estimates: Study

Keith Anthony Fabro 11 Dec 2025
Mangroves within the Douala-Edéa Wildlife Reserve.

As fish catches fall and seas rise, Douala’s residents join efforts to restore mangroves

Ngala Chimtom 11 Dec 2025
A diver swimming close to a female sperm whale pod.

Unregulated tourism risks disrupting Timor-Leste’s whale migration

Robin Hicks 11 Dec 2025
This sea cucumbers belongs to the same family as sea pigs and swims in search of food and to escape predators. Behind it is a stalked glass sponge.

Deep-sea mining interests raise alarms among Mariana Trench communities

Elizabeth Claire Alberts 10 Dec 2025
A juvenile white sturgeon in Canada.

With a target on their bellies, can California’s sturgeon survive?

Laurel Neme 10 Dec 2025

What would this scientist tell Trump? Interview with Robert Watson, former chair of the IPCC

David Akana 9 Dec 2025

The last of the Vaquita Porpoise (cartoon)

Rohan Chakravarty 9 Dec 2025
Fishing gear. Image courtesy of Thomas Merritt via Unsplash.

‘Myopic’ fisheries managers toy with a new ‘tragedy of the commons’ (commentary)

Charles Clover 9 Dec 2025
Soda schweinfurthii, a desert subshrub, native to arid regions from Egypt to the Arabian Peninsula.

Can we create new inland seas to lower sea level rise? Interview with researcher Amir AghaKouchak

Jeremy Hance 9 Dec 2025
Atlantic blue tang surgeonfish (Acanthurus coeruleus). Photo by Sylfred1977 / Wikimedia Commons

New underwater acoustic camera identifies individual fish sounds, helping track threatened species

Kaia Glickman 9 Dec 2025
The resulting piles of plastic after beach clean-up volunteers sifted microplastics from water and sand in Kailua Bay, a few miles south Kāneʻohe Bay, Oʻahu. Image courtesy of: Ken G Kosada/Lethal Lens Photography.

Another threat to reefs: Microplastic chemicals may harm coral reproduction

Kari Goodbar 5 Dec 2025
Unlike other ocean-based energy solutions such as offshore wind, OTEC systems could provide baseload energy.

For fossil fuel-dependent islands, ocean thermal energy offers a lifeline

Sean Mowbray 5 Dec 2025
A breaching northern bottlenose soars out of the water. Image by Sanna Isojunno via Wikimedia Commons (CC BY-SA 4.0).

A rare bright spot for whales: Decades of conservation pay off for endangered population in Canada

Stella Mayerhoff 5 Dec 2025
Paraiso Mangrove Eco Learning Park, Tacloban City.

Philippine mangroves survived a typhoon, but now confront a human-made challenge

Keith Anthony Fabro 4 Dec 2025

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