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Unusual weather patterns in Sweden’s arctic region seem to be jeopardizing the migrating reindeer’s traditional grazing grounds, as rainfall during the winter has led to thick layers of snowy ice that block access to food.

Sámi reindeer herders protest EU-backed graphite mine, fearing lost grazing ground

Aimee Gabay 22 Dec 2025
Community members gather as a tagged Mekong giant catfish (Pangasianodon gigas) is prepared for release in the Cambodian stretch of the Mekong River.

Earth’s freshwater fish face harsh new climate challenges, researchers warn

Stefan Lovgren 17 Dec 2025
Smoke from wildfires fills the air over Lake Tefé in the Amazon. Image courtesy of Miguel Monteiro.

The Amazon’s lakes are heating up at ‘alarming’ rate, research finds

Shanna Hanbury 11 Dec 2025
A woman gathers plants along the banks of the Mekong River while a child plays in the background. Water levels of the mighty Mekong River have dropped drastically due to drought-like conditions and damming upstream. The drop disrupts the region’s water supply, transport routes, and the livelihood of communities in Thailand, Laos, Cambodia and Vietnam. The UN Intergovernmental Panel on Climate Change (IPCC) predicts that more than one billion people will face water shortages due to climate change. Credit: © Greenpeace / Vinai Dithajohn

New mapping reveals hidden mining boom in Laos that threatens the Mekong

Andy Ball, Gerald Flynn, Konlaphat Siri 10 Dec 2025

Behind Sri Lanka’s ‘fish rain’ lies a web of migrations now blocked by rising dams

Malaka Rodrigo 27 Nov 2025
Blackchin tilapia

Thai agri giant CPF sues activist over claims linking it to invasive fish outbreak

Carolyn Cowan 4 Nov 2025

Cameroon inaugurates controversial dam despite local dissent

Yannick Kenné 10 Oct 2025
Fishers with a net at Lake Victoria in Kenya.

Africa’s largest freshwater lake could be site of Kenya’s nuclear power plant

Elodie Toto 8 Oct 2025

Hope for the iconic Yangtze sturgeon (cartoon)

Rohan Chakravarty 29 Sep 2025

Scientists capture rare video of bumblebee catfish climbing waterfalls in Brazil

Kristine Sabillo 4 Sep 2025
A 1.72-meter (5.6-foot), 102-kilogram (225-pound) Mekong giant barb caught in Tonle Sap Lake in December, 2002.

Shrinking Mekong megafish underlines risks to the river, study finds

Anton L. Delgado 26 Aug 2025
The sun rises on the Salween River, which serves as a vital lifeline for Karen communities on both sides of the Thai-Myanmar border. Image by Gerald Flynn / Mongabay.

Asia’s longest free-flowing river faces threats of dams and diversions

Mongabay.com 6 Aug 2025
Paul-Loiselle at the New York Aquarium. Image courtesy of Julie Larsen/Wildlife Conservation Society.

Paul V. Loiselle, champion of cichlids, died April 15, aged 79

Rhett Ayers Butler 6 Aug 2025
Devils Hole pupfish in the Ash Meadows Fish Conservation Facility. Photo by Olin Feuerbacher/USFWS

Devils Hole pupfish hit by micro-tsunami from 8.8-magnitude Russian earthquake

Rhett Ayers Butler 3 Aug 2025

Sacred sites & cultural practices key to Indonesia fish conservation: Study

Basten Gokkon 23 Jul 2025

Africa’s freshwater fish face a crisis — but solutions are within reach

David Akana 21 Jul 2025
Chinook salmon (Oncorhynchus tshawytscha).

Canada’s Pacific Coast hit hard by trawling, with limited transparency: Report

Edward Carver 14 Jul 2025
Plans to blast the Pedral do Lourenço rock formation in the Tocantins River have been suspended by a court. Image courtesy of Antonio Cavalcante/Ascom Setran-PA.

Brazil court halts plan to blast 35-km river rock formation hosting endangered species

Shanna Hanbury 10 Jul 2025

Predatory snakehead fish poses invasive threat after sighting in Sri Lanka reservoir

Malaka Rodrigo 28 Jun 2025
A Eurasian otter (Lutra lutra), one of the otter species found in Nepal. Image by Alexander Leisser via Wikimedia Commons (CC BY-SA 4.0).

In Nepal, northernmost sighting of Eurasian otter raises hope, concerns

Abhaya Raj Joshi 7 Jun 2025
Joseph James, chairman of the Yurok Nation, the largest Indigenous tribe in California, says of Blue Creek watershed costing $60 million, “You have to smile a little bit when you realize you’re buying back your own land, right? Yes, it’s a hefty price tag, but it’s also priceless.” Image courtesy of Matt Mais of the Yurok Tribe.

In a big win, Yurok Nation reclaims vital creek and watershed to restore major salmon run

Justin Catanoso 5 Jun 2025
The Paduka community cooking for visitors.

Villagers in Sumatra bring ancient forest flavors back to the table

Claire Turrell 5 Jun 2025
Fishers camp in grass shelters at Mbenje Island, which is located 10 kilometers (6 miles) from the beachshore of Lake Malawi, in a cluster of fivesix islands. – Image by Charles Mpaka for Mongabay.

Community-led system boosts fisheries in a corner of fast-depleting Lake Malawi

Mongabay.com 14 May 2025

Dredging and pollution threaten fishing in the Niger River

Mariam Sanogo 8 May 2025
The Sumatran belida fish is a protected species that is increasingly difficult to find in the wetlands of the Musi River, South Sumatra.

Sumatran culinary heritage at risk as environment changes around Silk Road river

Taufik Wijaya 24 Mar 2025
Artisans fix nets at Chikombe Beach ahead of their trip to Mbenje Island – . Image by Charles Mpaka for Mongabay.

Fish-tracking robot aims to make fishing more sustainable in developing nations

Charles Mpaka 20 Mar 2025
A 2023 expedition along the Uatumã River documented biodiversity loss linked to the Balbina dam. In 2024, a survey of the undammed Jatapu River revealed a region teeming with life. Image courtesy of the National Institute for Amazonian Research (INPA).

Endemic fish wiped out in Brazilian Amazon hydroelectric dam area, study finds

Sarah Brown 25 Feb 2025
Researchers on one of the field visits to the Näätämö River, remote wilderness areas and the fjord at the outflow to the Arctic Ocean.

Researchers find microplastics for the first time in the Finnish Sámi waters

Sonam Lama Hyolmo 4 Feb 2025
Thai activists

Thai farmers demand action to restore ecosystems, compensate for invasive fish

Carolyn Cowan 16 Jan 2025
Banner image of discus fish by Rhett A. Butler/Mongabay.

1 in 4 freshwater species worldwide at risk of extinction: Study

Kristine Sabillo 14 Jan 2025

Grassroots efforts sprout up to protect Central America’s Trifinio watershed

Maxwell Radwin 16 Dec 2024
The Putumayo is a long Amazonian river that begins in Colombia and flows into the Brazilian Amazon. Photo courtesy of Michelle Carrere.

Women in Putumayo turn to fish farming and away from the coca industry

Iñigo Alexander 28 Nov 2024

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