The Radiotelemetry Studies of Juvenile Anadromous Fish team, part of the Migrational Behavior Program, is part of the larger Riverine Ecology Group within the Fish Ecology Division. Staff from these combined programs, with support from the Fisheries Engineering Program, conduct multi-pronged investigations to assess the effects and influence of the Columbia River hydropower system on the long-term viability of anadromous fish stocks, particularly salmonids listed as threatened or endangered under the U.S. Endangered Species Act (ESA).