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 ...

Wildlife conservationists have been long making the case that spring-run Chinook salmon are a genetically distinct species from the ones that make their runs in the fall. If the federal government ...

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 ...

Spring-run Chinook salmon are also a preferred and primary food for Southern Resident orcas, which are themselves listed as endangered, having a population of only 73 individuals. Diminishing salmon ...

The rare spring-run chinook salmon is rarer than usual this year, according to counts in the three streams that support the bulk of the wild fish left in the Sacramento River system. In Butte Creek, a ...

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 ...