The small freshwater fish has virtually disappeared from much of the Pecos River Basin but is still swimming along the Pecos River and off-channel locations in New Mexico near the Bitter Lake ...

Mussel shells provide living space for insects and plants, and empty shells serve as nesting sites for small fish like darters. Unfortunately, for all their allure, freshwater mussels are the most ...

Millions of people rely on freshwater fish for food and as a source of income ... we need to consider both large and small waters, and to protect all our freshwaters: ponds, lakes, streams and ...

Climate change warms waters near the poles, enabling larger migratory fish like salmon to flourish. Equatorial populations ...

TUCSON— In response to a lawsuit by the Center for Biological Diversity, the U.S. Fish and Wildlife Service today proposed giving Endangered Species Act protection to the Pecos pupfish. The small ...

Freshwater fish populations that dwell nearer the poles are outperforming their equatorial counterparts, researchers have found.

A study identifies shrinking salmon size as a factor depressing successful production of new generations in the Yukon and ...

"They are hardy or resilient fish, but they're not indestructible," said Krista Kemppinen, a senior scientist for the nonprofit Center for Biological Diversity, which has advocated for the Pecos ...