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Smaller than pencil erasers, acoustic-transmitting tags, lay in the palm of a gloved hand. The tags are part of Pacific Northwest National Laboratory Juvenile Salmon Acoustic Telemetry System, which is used to track where and how deep fish travel in water.

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Document Title: Accoustic Trasmitting Tags
Category: Marine Science
Media Type: Photos
Date of Image/Photo: May 2009
Background: Scientists from the Department of Energy’s Pacific Northwest National Laboratory in Richland, Washington and the U.S. Army Corps of Engineers’ Portland District are conducting a study using acoustic telemetry to track juvenile salmon as they pass through John Day Dam. The fish are being tracked in three dimensions, which means researchers can see how deep and where the fish travel as they approach and pass the dam. Data is being collected to provide fishery managers with the best possible information to improve salmon passage at dams and to enhance the endangered fish’s overall health and survival. Specific improvements and tests will be explained at the event. This project shows how science can aid salmon survival throughout the Federal Columbia River Power System.

Scientists are tagging about 240 juvenile salmon a day over eight weeks for this project, which uses the Juvenile Salmon Acoustic Telemetry System (JSATS). PNNL and NOAA Fisheries began developing JSATS for the Corps of Engineers in 2001.

URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/DRAE-7RYNP9

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