Lampreys in a bucket

a bunch of parasitic eel-like fish with a gaping mouths

Photo By/Credit

Steve Martarano/USFWS

Media Usage Rights/License

Public Domain

Image

Pacific lampreys caught in the fish ladder are moved to the migration tube system at Van Arsdale Fisheries Station in Potter Valley, California. Individual lampreys are tracked to evaluate performance when ascending obstacles. The information collected during these studies provides a scientific basis for improving passage at dams and connecting lampreys with their upstream spawning grounds. Credit: Steve Martarano/USFWS

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