Reservoirs along the Lower Snake River, which are home to endangered Snake River sockeye, similarly crested to 69.53 degrees, according to the nonprofit Save Our Wild Salmon, which tracks water ...

On the banks of the Snake River in far eastern Washington, sockeye salmon have had a rough summer. The water behind the last major concrete dam they have to swim past is way too hot. “It’s ...

On average, 40% to 70% of adult Snake River sockeye counted at Bonneville Dam make it to Lower Granite Dam on the Snake River. Known as conversion, the rate varies based on river conditions.

As heat waves become more common and river temperatures rise, few salmon complete the 900-mile journey from the Pacific Ocean through eight dams to their spawning grounds in southern Idaho.

In 2015, the Columbia, Snake and Salmon rivers were so hot in the early summer that of the 4,000 sockeye seen at the first dam on the Columbia, all but 157 died during the migration.

Temperatures in the Columbia and Snake rivers are already within 2 degrees of the slaughter zone of 2015, when half the sockeye salmon run was lost because of high water temperatures.

Lower Granite Dam is the last major hurdle for Snake River sockeye salmon. Fish managers had expected more than 4,000 sockeye in the Snake River run, but the actual count so far is less than 400.

Of the 730,000 young sockeye released in Idaho 2017, only 17 survived the 900-mile journey to the Pacific Ocean and then back again. ... Snake River sockeye salmon run falters, ...

BOISE, Idaho — Conservation groups spent Saturday evening at the Idaho State Capitol observing the 30 year anniversary of the Snake River sockeye salmon listing under the Endangered Species Act ...

This summer, Idaho’s Stanley Basin could see the most robust return of sockeye salmon it has seen in several years. Sockeye numbers at Bonneville Dam on the Columbia River surged at the end of ...

While the sockeye headed to B.C. are breaking records, endangered Snake River sockeye — the first in 1991 of 13 runs to be listed under the Endangered Species Act — continue to do terribly.

Federal authorities have released a final recovery plan for the Snake River’s sockeye salmon runs, which teetered on the brink of extinction in the 1990s. Only a handful of sockeye returned to ...