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The AFSC Groundfish Assessment Program (GAP) regularly conducts bottom trawl surveys to assess the condition of groundfish and shellfish stocks in Alaskan marine waters.
The surveys range from southeastern Alaska north to the Eastern Bering Sea shelf and slope and to the westernmost Aleutian Islands.
Bottom trawl surveys for groundfish and king and Tanner crabs occur annually in the eastern Bering Sea in cooperation with the AFSC Shellfish Assessment Program. Biennial bottom trawl surveys are conducted in the Aleutian Islands (even years), Gulf of Alaska (odd years), and along the eastern Bering Sea slope (even years).
Beginning in 2017, biennial surveys will occur in the Northern Bering Sea. Bottom trawl surveys are occasionally conducted in the Chukchi and Beaufort Seas. AFSC's Auke Bay Laboratory also conducts longline surveys of sablefish abundance are conducted throughout Alaskan waters.
*Featured Items*
Recent Poster Presentations, Publications, Reports & Activities
- CONRATH, C. L.
2017. Maturity, spawning omission, and reproductive complexity of deepwater rockfish. Trans. Am. Fish. Soc. 146:495-507. http://dx.doi.org/10.1080/00028487.2017.1285352
Online.
- CONNER, J., D. G. NICHOL, and R. R. LAUTH. 2017. Results of the 2015 eastern Bering Sea continental shelf bottom trawl survey of groundfish and invertebrate resources. U.S. Dep. Commer., NOAA Tech. Memo. NMFS-AFSC-353,154 p. Online.
- CONNER, J., and R. R. LAUTH. 2017. Results of the 2016 eastern Bering sea continental shelf bottom trawl survey of groundfish and invertebrate resources. U.S. Dep. Commer., NOAA Tech. Memo. NMFS-AFSC-352,159 p. Online.
- WILBORN, R., C. CONRATH, B. KNOTH, and C. ROOPER.
2017. Results from the underwater camera survey of the 49 fathom pinnacle and snakehead bank sites near Kodiak Island, Alaska. AFSC Processed Rep. 2017-06, 75 p. Alaska Fish. Sci. Cent., NOAA, Natl. Mar. Fish. Serv., 7600 Sand Point Way NE, Seattle WA 98115 Online.
- Using Triggered Cameras to Determine Fish Behavior in Rocky, Untrawlable Areas
By: KRESIMIR WILLIAMS, CHRIS ROOPER, MIKE LEVINE, ALEX De ROBERTIS
Conference: Western Groundfish Conference (19th), Newport, OR, Feb 2016
(2016 poster, .pdf, 468 KB) Online.
- Introducing the Working Group on Maturity Assessment and Reproductive Variability of Life Stages
By: SUSANNE McDERMOTT, SANDI NEIDETCHER, CHRISTINA CONRATH, PAUL SPENCER
Conference: Western Groundfish Conference (19th), Newport, OR, Feb 2016
(2016 poster, .pdf, 1.85 MB) Online.
See the poster and publications databases for additional listings.
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