A quarter of freshwater fish risk extinction -study

By Ecomili

December 13, 2023 at 6:35 AM


By Emma Farge

GENEVA (Reuters) - About a quarter of all freshwater fish species are at risk of extinction due to threats from climate change and pollution, the latest Red List of Threatened Species showed on Monday.

One of the main threats is the havoc climate change is wreaking on water cycles, such as falling water levels and rising sea levels causing seawater to move up rivers, according to the International Union for Conservation of Nature (IUCN), which compiles the list several times a year.

In its first exhaustive analysis of freshwater fish, IUCN said that over 3,000 species out of nearly 15,000 were at risk.

Also at risk is Atlantic Salmon, which swims in both freshwater and saltwater. It slid down a category from 'Least Concern' to 'Near Threatened' on evidence its global population fell by 23% between 2006 and 2020, IUCN said. It cited mortality due to salmon lice from farms as well as the rise of invasive species as some of the factors.

"Ensuring freshwater ecosystems are well-managed, remain free-flowing with sufficient water, and good water quality is essential to stop species declines and maintain food security, livelihoods and economies in a climate-resilient world," said Kathy Hughes, co-chair of the IUCN Species Survival Commission Freshwater Fish Specialist Group.

Another fish now in danger is the 'Large-toothed Robber' found in Kenya in the world's largest desert lake, Lake Turkana. The species has fallen two categories to 'Vulnerable' due partly to habitat dehydration due to climate change as well as depleted water flows caused by damming, IUCN said.

On a positive note, the Scimitar Oryx is no longer extinct in the wild thanks to a successful reintroduction project in Chad where hundreds of calves have been born, IUCN said.

(Reporting by Emma Farge; Editing by Susan Fenton)


Reuters is a news agency owned by Thomson Reuters Corporation. It employs around 2,500 journalists and 600 photojournalists in about 200 locations worldwide. Reuters is one of the largest news agencies in the world.

All Comments (0)
Sort By
Loading Comments ...
Related Articles

Popular Articles

No articles found.

No Infobites Found!

Share your ideas

with others

Developed By: Golden Info Systems Ltd.