Are the fish in your aquarium happy? Five things to look out for

If 1,500 captive mammals suffocated to death in a zoo, their suffering would spark an outcry. So when a Berlin hotel aquarium exploded at the end of 2022, why did so few people comment on the welfare of the fish? Aquatic ...

Rapid evolution in fish: Genomic changes within a generation

Researchers from Basel have identified the genetic basis of rapid adaptation using a native fish species. They compared threespine stickleback fish from different habitats in the Lake Constance region. Their study reveals ...

How much water does a steelhead need to thrive?

Pescadero Estuary, located an hour south of San Francisco, is a coastal habitat under intense pressure from several interest groups, some human, others wild. The 643 citizens of the nearby town of Pescadero need fresh water ...

$700 million plan to help salmon habitat faces new challenge

A massive federal habitat restoration effort in the Columbia River Basin has spent more than $700 million on breaching levies, restoring tidal channels, reconnecting floodplains and other actions meant to boost salmon and ...

Planned hydropower dams threaten fish in the tropics

Planned hydropower dams will greatly increase threats for freshwater fish species because of habitat fragmentation, especially in the tropics. This was already suspected, but environmental researchers at Radboud University, ...

page 3 from 16