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Workers at Clausen Oysters in North Bend, Ore. unload bags of seeded oyster shells gathered from Horsfall Beach on July 30.

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Ocean acidification worries scientists

Shellfish, algae affected by acidity levels COOS BAY, Ore. (AP) — As a federal research vessel heads out to study the impact of ocean acidification on Pacific marine life, Oregon biologists are reporting both benign and negative impacts on regional shellfish.

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