Study: Wild Chinook Spawning Later In A Warming River, While Hatchery Strays Spawning Earlier

September 24th, 2020

Spawn timing for wild chinook salmon in the Skagit River system in Washington is slowly occurring later in the year as the river warms due to climate change, a finding that fits with previous research. However, the trend for hatchery-origin stray chinook salmon in the same river is towards earlier spawning, according to a recent study.

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Same Ocean Conditions Impacting West Coast Salmon Runs Reducing Population Of ESA-Listed Marbled Murrelet; Numbers Dropping 4 Percent A Year

September 24th, 2020

Squeezed by changing ocean conditions that limit their food options and the long-term loss of old forest needed for nesting, marbled murrelets would benefit most from conservation efforts that take both ocean and forest into account, new research by Oregon State University shows.

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Alaska Salmon Getting Smaller, Returning To Rivers Younger; Climate Change, Competition With Growing Numbers Of Hatchery Fish In Ocean

August 19th, 2020

The size of salmon returning to rivers in Alaska has declined dramatically over the past 60 years because they are spending fewer years at sea, according to a new study led by researchers at the University of California, Santa Cruz, and the University of Alaska Fairbanks.

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