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SIOUX FALLS, S.D. (AP) - Scientists have documented natural spawning by the endangered pallid sturgeon in the Missouri River.
They had suspected the six dams in the Dakotas and Montana kept the fish from spawning by altering flow, temperature and sediment content.
But starting in March, they found successful spawning for the first time by closely following two female sturgeon between Vermillion and Blair, Neb.
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