Fish

Climate change has caused record-breaking ocean temperatures, and that means more dangerous storms, trouble for coral reefs and big changes for our marine ecosystems.

Citizen scientists are helping speed up efforts to replant and regrow dying reefs, but is the labor-intensive process really the best answer?

Scientists studying conditions on the Klamath River hope to help recovery efforts here and around the world, but they still lack dedicated funding.

In response to pressures from the international community, Mexico has agreed to take more steps to prevent the porpoises’ extinction — but with fewer than 20 remaining, will that be enough?

Mounting evidence proves that natural-gas and oil extraction threatens wildlife and ecosystems — much as it harms human health.

A dire report about our climate and oceans underscores the great need for action. A global oceans treaty could help save the future.

Successful conservation means more sharks, which is great for the health of the ocean but could also be problematic in a few important ways. Here’s how experts say we should prepare.

The most widely used class of insecticides is dangerous for much more than its intended target, new research finds.

The Pacific bluefin tuna is vulnerable to extinction and yet fisheries managers may vote to increase the number that can be caught.

New research finds that ocean warming has damaged some fisheries and benefited others, although the losers outweigh the winners. But there’s still some encouraging news.