Science Spotlights

Many of California’s imperiled salmon populations are produced in intermittent streams, where some reaches are reduced to isolated pools entrapping juveniles at the height of summer when rain is scarce…

A recent literature review—the first to systematically review studies of the impacts that estuary developments may have on juvenile salmon—has identified multiple activities and stressors that are likely to negatively impact salmon…

More than a dozen Chinook salmon populations, each with unique population dynamics, exist in the Kuskokwim River, Alaska; home to the largest Chinook subsistence fishery in the world…

Glaciers in western North America are retreating rapidly due to climate warming, with potential implications for downstream Pacific salmon habitat…

Analysis of long-term datasets on the ages and sizes of sockeye salmon from Alaska’s Bristol Bay reveals changes in juvenile development and seaward migration timing, due to increased freshwater prey abundance triggered by climate warming…

Since the 1980s, hatchery-reared Chinook salmon in California’s Central Valley have been trucked increasing distances from source hatcheries to circumvent survival bottlenecks…

Variation in how habitats respond to changing environmental regimes influences the locations within river basins where fish production is highest from year to year, which affects fisheries yields, management strategies, and conservation efforts…

Local and Indigenous knowledge suggests that the story of salmon moving northward into the Arctic has been oversimplified by Western scientists…

Chinook salmon exhibit “spring-run” or “fall-run” migration timing in many parts of their range, which permits spawning during different periods of the year to minimize the risk of adverse conditions or facilitate access to spawning grounds…

Removal of two mainstem dams on the Elwha River in Washington State is the world’s largest river restoration project and a unique natural experiment…

Although multiple independent introduction events of Chinook salmon have occurred in many parts of the world, it is unknown which have led to self-sustaining populations…

Analysis of several long-term datasets indicates that the age-size class structure of many Chinook populations has changed over the past several decades, with salmon becoming both smaller and younger…