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Hydrography

The morning chill hinted of autumn. An abrupt change of season seemed unlikely, however, after two weeks of 100-degree temperatures. Yesterday’s brief rainfall — the first in over two months — settled the dust, but failed to bring relief to a drought-suffering landscape.

Commerce
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PORTLAND — Nez Perce, Umatilla, Warm Springs and Yakama tribal fishers are making their way to the Columbia River after the tribes announced that the first commercial gillnet fishery of 2021 opened on Wednesday, June 16, according to a press release from the tribes.

Ichthyology
centerpiece
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A new study finds that removal of dams on the Columbia-Snake river system isn't likely to improve Chinook salmon survival, because salmon survival rates are similar in other regions. Researcher David Welch says "big puzzles" remain because so much is unknown about the time the salmon spend in the ocean.

Hydrography
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Advocates of using the Columbia-Snake river system for agricultural transportation say a new study questioning the basis for the push to breach dams will help their cause.

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The governors of Washington, Oregon, Idaho and Montana have agreed to work together to rebuild the Columbia River system’s salmon and steelhea…