The AFSC Groundfish Assessment Program (GAP), in addition to regularly conducting
bottom trawl surveys, also investigates biological processes and interactions with the environment to estimate growth, mortality,
and recruitment to improve the precision and accuracy of forecasting stock dynamics.
Impacts of bottom trawls on the seafloor and the description of bottom type are also being studied in the Bering Sea
and Aleutian Islands.
*Featured Items*
Recent Poster Presentations, Publications, Reports & Activities
- KASTELLE, C. R., T. E. HELSER, J. L. MCKAY, C. G. JOHNSTON, D. M. ANDERL, M. E. MATTA, and D. G. NICHOL.
2017. Age validation of Pacific cod (Gadus macrocephalus) using high-resolution stable oxygen isotope (δ18O) chronologies in otoliths. Fish. Res. 185:43-53.
http://dx.doi.org/10.1016/j.fishres.2016.09.024
Online.
- SOMERTON, D. A., R. A. McCONNAUGHEY, and S. S. INTELMANN.
2017. Evaluating the use of acoustic bottom typing to inform models of bottom trawl sampling efficiency. Fish. Res. 185:14-16.
http://dx.doi.org/10.1016/j.fishres.2016.09.029 Online.
- STEVENSON, D. E., and R. R. LAUTH.
2012. Latitudinal trends and temporal shifts in the catch composition of bottom trawls conducted on the eastern Bering Sea shelf. Deep-Sea Res. II 65–70:251-259. http://dx.doi.org/10.1016/j.dsr2.2012.02.021
Online.
- GARDNER, J. R., J. W. ORR, D. E. STEVENSON, I. SPIES, and D. A. SOMERTON.
2016. Reproductive parasitism between distant phyla: Molecular identification of snailfish (Liparidae) egg masses in the gill cavities of king crabs (Lithodidae). Copeia 104:645-657.
http://dx.doi.org/10.1643/CI-15-374
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.