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Ecology and salmon related articles

Algae Bloom in Lower Snake River

by Bert Bowler
Spokesman-Review, November 14, 2023

Water resembling pea soup, is a toxic algae bloom in 2022 at McNary Wildlife Refuge, upstream of Lower Snake River's confluence with the Columbia River. Rewilding the lower Snake River is the best inclusive solution for all involved, especially wild salmon and steelhead. A healthier ecosystem will provide longer-term benefits compared to the status quo. Replacing energy, transportation and irrigation is feasible and affordable. A warming climate will continue to degrade the 140 miles of unhealthy reservoirs.

Thirty miles of toxic blue-green algae appeared in the lower Snake this fall. Alex Fremier, an environmental science professor at Washington State University, said the bloom on the Lower Snake is "unusually large" for a river. Dammed waters and blooms are certainly connected.

No toxic algae were observed in the free-flowing Snake above Lower Granite reservoir.

Related Pages:
Toxic Algae Warning Issued for Little Goose Dam by Staff, Tri-City Herald, 10/3/12


Bert Bowler, Boise
Algae Bloom in Lower Snake River
Spokesman-Review, November 14, 2023

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