Results 81 to 90 of about 5,753 (262)

Changes over time in the spatial distribution of walleye pollock (Theragra chalcogramma) in the Gulf of Alaska, 1984-1996 [PDF]

, 2002
Triennial bottom trawl survey data from 1984 to 1996 were used to evaluate changes in the summer distribution of walleye pollock in the western and central Gulf of Alaska. Differences between several age groups of pollock were evaluated. Distribution was
Babcock Hollowed, Anne, Shima, Michiyo, VanBlaricom, Glenn R.   +2 more
core  

Bottom‐Up Interactions in State‐Space Age‐Structured Models Using Mass‐Balance Dynamics

Fish and Fisheries, Volume 26, Issue 6, Page 1048-1064, November 2025.
ABSTRACT Age‐structured models are used worldwide to regulate fisheries. These models typically ignore top‐down interactions (predation affecting natural mortality) and bottom‐up interactions (consumption affecting individual growth, reproduction, or survival), whereas multispecies catch‐at‐age models often incorporate top‐down but not bottom‐up ...
James T. Thorson, Kerim Y. Aydin, Matthew L. H. Cheng, Beatriz S. Dias, David G. Kimmel, Kasper Kristensen   +5 more
wiley   +1 more source

Atlas of abundance and distribution patterns of ichthyoplankton from the Northeast Pacific Ocean and Bering Sea ecosystems: based on research conducted by the Alaska Fisheries Science Center (1972–1996) [PDF]

, 2003
This regional atlas summarizes and illustrates the distribution and abundance patterns of fish eggs and larvae of 102 taxa within 34 families found in the Northeast Pacific Ocean including the Bering Sea, Gulf of Alaska, and U.S.
Benson, Jan L., Blood, Deborah M., Matarese, Ann C., Picquelle, Susan J.   +3 more
core  

Seasonal dynamics of gonads maturity and indices of body condition for walleye pollock Theragra chalcogramma in the northern part of the Okhotsk Sea

Известия ТИНРО, 2015
Seasonal dynamics of gonad maturity and body condition indices (liver weight, hepato-somatic index, weight-size ratio) is analyzed for walleye pollock in the northern Okhotsk Sea.
Alexander I. Varkentin
doaj   +1 more source

PCR Cloning Combined With DNA Barcoding Enables Partial Identification of Fish Species in a Mixed-Species Product

Frontiers in Ecology and Evolution, 2020
DNA barcoding is a valuable tool for regulatory identification of fish species; however, it does not perform well when multiple species are present within the same food product. Therefore, the objective of this study was to examine the use of PCR cloning
Anthony J. Silva, Michael Kawalek, Donna M. Williams-Hill, Rosalee S. Hellberg   +3 more
doaj   +1 more source

Drivers and Dynamics of Salmon Bycatch in the Eastern Bering Sea Pollock Fishery

Fish and Fisheries, Volume 26, Issue 6, Page 1107-1121, November 2025.
ABSTRACT Minimising bycatch is a pervasive challenge for sustainable fisheries management, the importance of which is amplified for non‐target species or populations that are in decline. In the eastern Bering Sea (EBS) walleye pollock (Gadus chalcogrammus) fishery, salmon—most notably Chinook (Oncorhynchus tshawytscha) and chum (O.
Lukas B. DeFilippo, Wesley A. Larson, Patrick D. Barry, Curry J. Cunningham, Joseph A. Langan, Sabrina Garcia, Kathrine G. Howard, James N. Ianelli, Diana L. Stram   +8 more
wiley   +1 more source

Stage-specific vertical distribution of Alaska plaice (Pleuronectes quadrituberculatus) eggs in the eastern Bering Sea [PDF]

, 2011
The stage-specific distribution of Alaska plaice (Pleuronectes quadrituberculatus) eggs in the southeastern Bering Sea was examined with collections made in mid-May in 2002, 2003, 2005, and 2006.
Blood, Deborah M., Duffy-Anderson, Janet T., Mier, Kathryn L.   +2 more
core  

Diets of Steller sea lions (Eumetopias jubatus) in Southeast Alaska, 1993−1999 [PDF]

, 2007
The diet of Steller sea lions (Eumetopias jubatus) was determined from 1494 scats (feces) collected at breeding (rookeries) and nonbreeding (haulout) sites in Southeast Alaska from 1993 to 1999.
Calkins, Donald G., Trites, Andrew W., Winship, Arliss J.   +2 more
core  

Government-Industry Cooperative Fisheries Research in the North Pacific under the MSFCMA [PDF]

, 2001
The National Marine Fisheries Service’s Alaska Fisheries Science Center (AFSC) has a long and successful history of conducting research in cooperation with the fishing industry. Many of the AFSC’s annual resource assessment surveys are carried out aboard
Dorn, Martin W., Gaichas, Sarah K., Gauvin, John R., Karp, William A., Rose, Craig S., Stauffer, Gary D.   +5 more
core  

Habitat and Trophic Specialization Among Greenland Cod (Gadus ogac) Morphotypes in the Context of Climate Change Resilience

Ecology and Evolution, Volume 15, Issue 9, September 2025.
Morphological variation and habitat‐trophic metrics from carbon (δ13C) and nitrogen (δ15N) stable isotopes were estimated in Greenland cod (Gadus ogac) collected along the marine coast near Ulukhaktok, NT, in the western Canadian Arctic. This study provides critical insights into the ability of coastal Arctic Gadids to respond to shifts in resource use
Stephanie Chan, Harri Pettitt‐Wade, Jack P. W. Hollins, Tristan Pearce, Lisa Loseto, Teah G. Burke, Nigel E. Hussey   +6 more
wiley   +1 more source