One of Alaska’s most abundant freshwater fish species is altering its breeding patterns in response to climate change, which could impact the ecology of northern lakes that already acutely feel the ...

MARYLAND -- Maryland's effort to fight back against the spreading, invasive northern snakehead fish, now known as the Chesapeake Channa, could be facing a new challenge in the fish's breeding patterns ...

Colonial breeding is an evolutionary puzzle, as the benefits of breeding in high densities are still not fully explained. Although the dynamics of existing colonies are increasingly understood, few ...

A new study estimates about 60 million icefish nests are grouped together in the Antarctic Weddell Sea. The colony covers some 92 square miles. Researchers have deployed camera systems to monitor the ...

In a lifetime of fishing for winter steelhead on Oregon’s Alsea River, Stan Steele has seen it get harder and harder to hook into hatchery-bred fish. Instead, he has found he is more likely to hook ...