Currently browsing: Endangered Species

A record number of threatened chum salmon passed Bonneville Dam late in 2024, with over 1,100 of the salmon passing the dam on their way upstream, the largest passage by chum at the dam since 1954. These are in addition to the chum that spawn annually downstream near the dam’s tailrace and are the subjects of an effort to restore the Columbia River run that at one time was near 1 million fish.

Pacific salmon are in decline across British Columbia and the Yukon, according to a new report from the Pacific Salmon Foundation. More than 70 per cent of salmon are below their long-term average of the 41 combinations of regions and species assessed.

As juvenile salmon and steelhead in the Columbia River basin migrate downstream to the ocean – mostly in the spring and summer – they run a gauntlet of avian predators. Birds are taking as much as 50 percent of these fish, with juvenile steelhead the hardest hit.

The North Santiam River is a high priority for the recovery of threatened Upper Willamette River spring Chinook and winter steelhead. Large dams upriver impaired natural stream processes, decimating fish populations. Development, shoreline armoring, and the disconnection of floodplains from the river damaged habitat key for salmon spawning and rearing juvenile fish.