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After a chinchorro fishing haul, some fish considered worthless are left behind and end up rotting on the sand.

Illegal fishing threatens unique marine ecosystem in Peru

Ramiro Escobar 1 Oct 2025

The world’s oceans face triple planetary crisis: Report

Bobby Bascomb 30 Sep 2025

From South America to Asia, seahorses vanish into trafficking pipeline

Ana Cristina Alvarado 30 Sep 2025
North Pacific Ocean temperature anomalies on September 28, 2025. Positive values denotes areas warmer than average; negative values means cooler than average. Image via NOAA Coral Reef Watch.

Northeast Pacific endures fourth-largest marine heat wave on record

Shreya Dasgupta 30 Sep 2025
Author David Helvarg among the kelp stipes off Anacapa Island in southern California’s Channel Islands.

California’s kelp forests struggle to recover a decade after collapse

Mongabay.com 29 Sep 2025

Study spotlights West Papua habitat as whale sharks face increased pressures

Basten Gokkon 28 Sep 2025
Alisha’s dorsal photograph during her initial tagging in May 2012 in Gansbaai, South Africa.

Long-lost white shark tag traces remarkable journey from South Africa to SE Asia

Miriam Bahagijo 26 Sep 2025

How we probed a maze of websites to tally Brazilian government shark meat orders

Philip Jacobson, Kuang Keng Kuek Ser 26 Sep 2025

As Sri Lanka struggles with ghost nets, volunteer youth lead seabed cleanup

Malaka Rodrigo 25 Sep 2025

From Chile to Greece, ‘ghost gear’ from fish farms haunts the seas

Guia Baggi 25 Sep 2025
Thwaites Glacier in Antarctica.

Scientists weigh giant sea curtain to shield ‘Doomsday Glacier’ from melting

Gloria Dickie 24 Sep 2025
An oceanic white tip shark (Carcharhinus longimanus) with pilot fish (Naucrates ductor). Image courtesy of Renata Romeo/Ocean Image Bank.

‘Super big deal’: High seas treaty reaches enough ratifications to become law

Edward Carver 23 Sep 2025
A blue shark (Prionace glauca).

Mongabay shark investigation cited in motion to ban Brazil fin exports

Mongabay.com 23 Sep 2025
Pollen-based sunscreen applied to skin pictured alongside raw camellia pollen. Image courtesy of NTU Singapore.

Scientists develop sunscreen made from pollen that doesn’t harm corals

Shanna Hanbury 22 Sep 2025

Panama upwelling fails in 2025, threatening marine ecosystems

Bobby Bascomb 19 Sep 2025
Two Iberian orcas pictured off the coast of Spain. Image courtesy of circe.info.

Iberian orcas sink sailboat in latest ramming ‘game’ in Portugal

Shanna Hanbury 19 Sep 2025
Fishers with their canoes in São Tomé.

São Tomé and Príncipe commits to creating a marine protected area network

Victoria Schneider 19 Sep 2025
Leonoras reef in Klein Bonaire. Image by EdFladung via Flickr (CC BY-ND 2.0).

Most Caribbean coral reefs to stop growing by 2040, study warns

Shreya Dasgupta 19 Sep 2025
A transitional zebra shark in the Pacific Visions exhibit at the Aquarium of the Pacific in California.

Pet sharks have become cool, but is owning them ethical?

Hallie Lieberman 18 Sep 2025
The “pink panther,” operated by the company ECOsubsea, conducts a hull cleaning of vessel Frontier Kotobuki in Singapore.

With global rules pending, can the shipping industry get more carbon efficient?

Edward Carver 17 Sep 2025
Two walruses atop a small piece of floating Arctic sea ice.

No new record low for Arctic sea ice loss in 2025

Gloria Dickie 16 Sep 2025

Oysters could help fight climate change, study finds

Bobby Bascomb 16 Sep 2025
river

Uruguay’s green hydrogen plans raise ecological concerns in Argentina & at home

Ali Qassim 15 Sep 2025
Blue shark (Prionace glauca), Faial-Pico Channel, Azores Islands, Portugal

Brazil weighs new measures to manage shark trade, fishing

Karla Mendes 15 Sep 2025

Conservationists oppose Peru’s plans to build prison in sensitive ecosystem

Maxwell Radwin 15 Sep 2025

Indonesia reopens Raja Ampat nickel mine despite reef damage concerns

Hans Nicholas Jong 12 Sep 2025
Kelp (genus Laminariales) is a shallow-water, light-dependent marine plant.

Experimental ocean climate fixes move ahead without regulation

Mongabay.com 11 Sep 2025

An indestructible invasive anemone threatens Chilean Patagonia’s seas

Ana Cristina Alvarado 11 Sep 2025
The newly described pink bumpy snailfish. Image courtesy of the Monterey Bay Aquarium Research Institute (MBARI).

Researchers describe three new-to-science snailfish species off California coast

Mongabay.com 11 Sep 2025

Indonesia’s giant Java seawall plan sparks criticism & calls for alternatives

Basten Gokkon 11 Sep 2025

Death of activist critical of geothermal project raises alarm in Indonesia

Hans Nicholas Jong 10 Sep 2025
Island in the South Pacific, Fiji. Image by Rhett A. Butler/Mongabay.

Top court delivers a ‘huge’ climate win for island nations

Mike DiGirolamo 9 Sep 2025

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