The largest freshwater fish in North America, which was once abundant in California’s major rivers and San Francisco Bay, has declined in numbers to a point that state officials will consider ...

“We’ve already lost seven of our state’s unique freshwater fish species to extinction, and it’d be a shame for California to lose any more,” said Jeff Miller, a conservation advocate at the Center.

California officials have taken an emergency action to list the golden mussel as a restricted species, making it illegal to ...

Like salmon, they spent most of their adult lives in the ocean, but spawn in freshwater streams and rivers. Southern steelhead are survivors, adapted to seasonally dry streams in the arid climate at ...

The California State Water Project (SWP ... of Water Resources expressed concerns in January 2024 that the requirement to protect endangered and threatened fish species in the Delta could lead to ...