The Daily Evergreen

High river temperatures dangerous to salmon

Salmon and most other fish do not internally regulate their temperatures. Instead, they adapt to water temperatures, so if the water is too hot or cold, the fish will not survive.

CHERYL AARNIO, Evergreen reporter

June 8, 2020

The Environmental Protection Agency released a report May 18 for public comment stating the temperatures of the Columbia and Lower Snake rivers do not meet Washington’s and Oregon’s water quality standards, which can be harmful to salmon. The report creates a temperature standard for the Lower Columbia and Lower Snake rivers in Washington and Oregon. The report states it is challenging to establish standards b...

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Columbia River