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Charlie Erdman from Trout Unlimited and Rachelle Tallman from UC-Davis deploy an acoustic receiver in the Williamson River. Acoustic receivers detect tagged fish as they swim by.

CHILOQUIN, Ore. — A team of researchers is testing the waters to revive chinook salmon in the Upper Klamath Basin.

In April, biologists released about 8,000 smolts in the Wood and Williamson rivers above Upper Klamath Lake as part of an ongoing experiment tracking their movement using tiny acoustic tags and passive integrated transponders, or PIT tags. 

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Juvenile chinook salmon reared at ODFW’s Klamath Hatchery on Crooked Creek.

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Staff from the Klamath Tribes, ODFW and Trout Unlimited surgically implanting acoustic tags into juvenile chinook salmon at ODFW’s Klamath Hatchery.

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Tagged chinook salmon after being released into the Williamson River.

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