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Resource Ecology and Ecosystem Modeling Program

Fish Stomach Collection and Lab Analysis

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During the first quarter of 2014, Resource Ecology and Ecosystem Modeling (REEM) staff analyzed the contents of 3,647 groundfish stomachs.  Laboratory analysis was completed and the resulting data error-checked and loaded into the AFSC’s Groundfish Food Habits database, resulting in 11,626 added records.  The majority of the samples analyzed during the quarter were Pacific halibut and gadids from the eastern Bering Sea.  Pacific halibut and rockfishes from the Gulf of Alaska region were also analyzed.  Other REEM program highlights include:

  • Angela Dillon, a University of Washington School of Fisheries and Aquatic Sciences undergraduate, completed the stomach content analysis for her Capstone student project “Food Habits of Pacific Cod, Pacific Halibut, and Flathead Sole in Marmot Bay, Alaska.”  She is now beginning her analysis of the resulting data. 

  • A scientist visiting from the Northwest Fisheries Science Center, Jessica Randall, is conducting stomach content analysis on juvenile salmon from Puget Sound, and Food Habits Lab personnel are assisting her to identify some of the zooplankton in the samples. 

  • Forty-eight stomach sampling kits for fisheries observers were assembled and delivered to vessels in the Seattle-Tacoma area before their departure to Alaskan fishing grounds.  Stomach sampling was performed by fisheries observers on 576 walleye pollock and 99 Pacific cod from the eastern Bering Sea and Aleutian Islands regions. 

  • REEM program outreach activities included a laboratory and program tour for Bob Lauth and Jenna Keeton (a senior at University of Washington), and school presentations for Jane Addams K-8 School in Seattle during their Science Career Day and for an East High School science class in Anchorage.

  • The REEM program educational display and the fish food habits hands-on activity were presented during the Polar Science Weekend event at the Pacific Science Center.

By Troy Buckley, Geoff Lang, Mei-Sun Yang, Richard Hibpshman,
Kimberly Sawyer, Caroline Robinson and Sean Rohan



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