Groundfish Bottom Trawl Surveys

Bottom Trawl Surveys

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*

Results of the 2013 Eastern Bering Sea Continental Shelf Bottom Trawl Survey Go there >>

Data Report: 2015 Gulf of Alaska Bottom Trawl Survey Go there >>

Data report: 2012 Aleutian Islands bottom trawl survey Go there >>

Results of the 2012 Eastern Bering Sea Upper Continental Slope Survey Go there >>

Recent Poster Presentations, Publications, Reports & Activities

STEVENSON, D. E., G. R. HOFF, J. W. ORR, I. SPIES, and C. N. ROOPER. 2019. Interactions between fisheries and early life stages of skates in nursery areas of the eastern Bering Sea. Fish. Bull. 117:8–14. https://spo.nmfs.noaa.gov/fishery-bulletin-journal/1171 Online.
STEVENSON, D. E., and R. R. LAUTH. 2018. Bottom trawl surveys in the northern Bering Sea indicate recent shifts in the distribution of marine species. Polar Biol. Early online. https://doi.org/10.1007/s00300-018-2431-1 Online.
HIDDINK, J. G., S. JENNINGS, M. SCIBERRAS, S. G. BOLAM, G. CAMBIÈ, R. A. McCONNAUGHEY, T. MAZOR, R. HILBORN, J. S. COLLIE, R. PITCHER, A. M. PARMA, P. SUURONEN, M. J. KAISER, and A. D. RIJNSDORP. 2018. Assessing bottom-trawling impacts based on the longevity of benthic invertebrates. J. Appl. Ecol. Early online. https://doi.org/10.1111/1365-2664.13278 Online.
AMOROSO, R. O., C. R. PITCHER, A. D. RIJNSDORP, R. A. McCONNAUGHEY, A. M. PARMA, P. SUURONEN, O. R. EIGAARD, F. BASTARDIE, N. T. HINTZEN, F. ALTHAUS, S. J. BAIRD, J. BLACK, L. BUHL-MORTENSEN, A. B. CAMPBELL, R. CATARINO, J. COLLIE, J. H. COWAN, D. DURHOLTZ, N. ENGSTROM, T. P. FAIRWEATHER, H. O. FOCK, R. FORD, P. A. GÁLVEZ, H. GERRITSEN, M. E. GÓNGORA, J. A. GONZÁLEZ, J. G. HIDDINK, K. M. HUGHES, S. S. INTELMANN, C. JENKINS, P. JONSSON, P. KAINGE, M. KANGAS, J. N. KATHENA, S. KAVADAS, R. W. LESLIE, S. G. LEWIS, M. LUNDY, D. MAKIN, J. MARTIN, T. MAZOR, G. GONZALEZ-MIRELIS, S. J. NEWMAN, N. PAPADOPOULOU, P. E. POSEN, W. ROCHESTER, T. RUSSO, A. SALA, J. M. SEMMENS, C. SILVA, A. TSOLOS, B. VANELSLANDER, C. B. WAKEFIELD, B. A. WOOD, R. HILBORN, M. J. KAISER, and S. JENNINGS. 2018. Bottom trawl fishing footprints on the world’s continental shelves. PNAS Early online. https://doi.org/10.1073/pnas.1802379115 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.

To view and print these documents, you must install Adobe Reader freeware. Adobe also offers free tools for the visually disabled.