Study Looks At What Factors Drive Juvenile Salmon Smolts To Pass Columbia/Snake Dams Through Turbines

High spill volumes to maximum total dissolved oxygen levels in order to reduce passage of juvenile salmon smolts through turbines at federal Columbia and Snake river dams is likely to be most effective at night, during high river flows and when temperatures are colder, according to a recent study. These are times when juveniles are less active and their swimming ability is low.

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