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One of the world’s largest deep-sea coral reefs discovered off Argentina

Elizabeth Claire Alberts 29 Apr 2026
A squat lobster in the deep sea.

Deep-sea wildernesses are more important than the promise of seafloor mining (analysis)

Andrew D. Thaler 14 Apr 2026
Casper octopus

This ghost octopus is facing a new threat

Juan Maza 14 Apr 2026

At high seas treaty summit, a dispute over fisheries managers’ role in conservation

Edward Carver 7 Apr 2026

American Samoa said ‘no’ to deep sea mining, Washington heard ‘faster’ (commentary)

Jackie Dragon 1 Apr 2026
Sei whale (Balaenoptera borealis) mother and calf as seen from the air. Image by Christin Khan NOAA/NEFSC via Wikimedia. (CC BY-SA 4.0).

With high seas treaty in place, West African countries plan for protected area

Victoria Schneider 31 Mar 2026

Deep-sea mining rules face delays despite urgent push

Elizabeth Claire Alberts 20 Mar 2026
Banner image: Fish meal factory ships Hua Xin 17 and Tian Yi He 6 anchored on the Geba River near the capital of Bissau. Image by Josef Skrdlik for Mongabay.

Guinea-Bissau’s transitional government bans fish meal production

Josef Skrdlik 2 Mar 2026
A humpback whale breaching in Alaskan waters.

Indigenous concerns surface as U.S. agency considers seabed mining in Alaskan waters

Anita Hofschneider 11 Feb 2026
Southern right whales in South Africa. Photo credit: Rhett A. Butler

Making 60% of the ocean manageable (Commentary)

Rhett Ayers Butler 22 Jan 2026

A new treaty comes into force to govern life on the high seas

Rhett Ayers Butler 17 Jan 2026
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
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

Norway pauses deep-sea mining for four years

Elizabeth Claire Alberts 8 Dec 2025

Expedition charts Cook Islands seafloor, amid scrutiny over mining motives

Elizabeth Claire Alberts 6 Nov 2025

On first International Day of the Deep Seabed, we seek stewardship and consensus (commentary)

Leticia Carvalho 30 Oct 2025
A diamond squid, which is found in both epipelagic and mesopelagic zones.

Global conservation body takes first step to protect ocean’s twilight zone

Elizabeth Claire Alberts 23 Oct 2025
A 2.6 meter-long (8.5-ft) oarfish (Regalecus russelii) caught off the western coast of Sri Lanka is the first record of the world’s longest fish in its waters.

First oarfish sighting in Sri Lanka highlights citizen science in marine protection

Malaka Rodrigo 13 Oct 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
Equipment used in deep-sea mining. Photo by Richard Baron/The Metals Company

Deep-sea mining is a false solution to our challenges (commentary)

Pradeep Singh 19 Aug 2025
Banner image of a remotely operated vehicle KIEL 6000 holding a manganese nodule in the sought-after Clarion-Clipperton Zone by the ROV-Team/GEOMAR via Wikimedia Commons (CC BY 4.0).

UN meeting closes with no moratorium on deep-sea mining; groups lament

Kristine Sabillo 1 Aug 2025

A sales-pitch pivot brings deep-sea mining closer to reality

Elizabeth Claire Alberts 31 Jul 2025
A view of Nuuk, Greenland’s capital, a small city on the southwest coast. Image courtesy of ICC.

‘Nothing about us without us’: Inuit leader Sara Olsvig on ocean politics

Edward Carver 31 Jul 2025
Squat lobsters and soft coral in the deep sea.

U.S. federal agency clears ways for deep-sea mining — and companies are lining up

Elizabeth Claire Alberts 8 Jul 2025
A brittle star (Gorgonocephalus sp.), recognizable by its numerous abundantly branched arms, attached to a white coral (Desmophyllum pertusum).

First-ever assessment highlights threats to Atlantic cold-water corals

Keith Anthony Fabro 30 Jun 2025
Rashid Mohamed Rashid

What happens to artisanal fishers when a deep-sea fishing port comes to town?

Anthony Langat 27 Jun 2025
Striped barracuda in Papua New Guinea.

PNG PM Marape rejects deep-sea mining even as provincial authorities try to revive project

Elizabeth Claire Alberts, John Cannon 16 Jun 2025
French President Emmanuel Macron speaks during the High-Level inaugural dinner of the UN Ocean Conference (UNOC).

‘Madness’: World leaders call for deep-sea mining moratorium at UN ocean summit

Elizabeth Claire Alberts 11 Jun 2025
Humpback whales in Western Australia. Image courtesy of Emilie Ledwidge/Ocean Image Bank.

World Oceans Day: Scientists find new clues about frontiers of ocean life

Mongabay.com 6 Jun 2025
Two lithodid crabs exhibiting mating behavior while perched on top of a basaltic rocky outcrop with an anemone (Liponema sp.) and a white sponge in the background.

Only a tiny % of the deep seafloor has ever been visually observed: Study

Edward Carver 30 May 2025

Restoring deep-sea corals after massive oil spill

Juan Maza 30 May 2025
A glass octopus, a nearly transparent species whose only visible features are its optic nerve, eyeballs and digestive tract.

The Metals Company applied to the U.S. for a deep-sea mining license

Elizabeth Claire Alberts 30 Apr 2025

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