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Pacific Northwest National Laboratory scientist Geoff McMichael sutures a juvenile Chinook salmon after implanting the fish with an acoustic-transmitting tag. The tag is part of PNNL’s Juvenile Salmon Acoustic Telemetry System, which is used to track where and how deep fish travel in water.

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Document Title: Implanting Fish
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, Wash. 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. Just 0.43 grams and smaller than a pencil eraser, JSATS tags are the smallest acoustic tags available. After being inserted into the belly of juvenile salmon, acoustic tags emit a small sound, or “ping,” every few seconds that is detected by receivers strategically placed in waterways. Each tag transmits a different code, which allows individual fish to be identified. The receivers record the ping’s position and use that data to trace where each tagged fish travels. Understanding a fish’s path is important in building and operating salmon-friendly dams.

URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/DRAE-7RYNN3

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