Sentences with phrase «fish during migrations»

Not exact matches

«The good news is that these effects can be reduced by installing or improving fish passage devices, modifying dam operations during peak migration periods, changing the structure of the dam to reduce injury and mortality, and by dam removal,» Nieland said.
BIG TANK A young white shark temporarily residing at the Monterey Bay aquarium gave researchers a chance to test a virtual gas gauge designed to see how the fish draw down energy stores during their epic migrations.
This observation happened during the sardine run, a vast fish migration in which cooperative feeding is observed with several shark species, dolphins, sea lions and sea birds, he says.
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