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NOAA Photo Library Image - fish5567

High-speed plankton samplers are used aboard the USBCF vessel MURRE II to determine changes in distribution and abundance of zooplankton. These small animals are important sources of food for young salmon once they enter salt water. The distribution and abundance of plankton is partially controlled by water temperature, salinity, and ocean currents.

Image ID: fish5567, NOAA's Historic Fisheries Collection
Credit: NOAA Central Library Historical Fisheries Collection

High Resolution Photo Available

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Last Updated:
November 10, 2017