Historically, spring-run and fall-run Chinook salmon have been considered as separate subspecies, races, ecotypes, or even as separate species of fish. A new genetic analysis, however, shows that the ...

Spawning season has begun for Feather River Hatchery’s threatened spring-run Chinook salmon, whose population is at a historic low.“What’s happening this year is the lowest number of spring-run fish ...

Typically, now is the time when creeks along the Sacramento River are filled with young spring-run Chinook salmon preparing to make their journey downstream to the Pacific Ocean, where they will ...

Spring-run fish are a variant of Chinook salmon, who return to rivers much earlier than the more abundant fall-run salmon. They return in the spring from the ocean to coastal freshwater rivers, ...

The California Department of Fish and Wildlife (CDFW) and National Oceanic and Atmospheric Administration (NOAA) Fisheries biologists are pursuing urgent measures in northern California this fall to ...