This study presents a model of an individual factory trawler conducting fishing operations off the west coast of North America in the Pacific hake (Merluccius productus) fishery. The model is used to… (More)
By: Jim Berkson, NMFS SEFSC Luiz Barbieri, Florida FWC Steve Cadrin, University of Massachusetts at Dartmouth Shannon Cass-Calay, NMFS SEFSC Paul Crone, NMFS SWFSC Martin Dorn, NMFS AFSC Claudia… (More)
Walleye pollock (Theragra chalcogramma) form persistent midwater and near-bottom schools in the daytime during the winter spawning season in the eastern Bering Sea (EBS). Two spawning areas in the… (More)
Management strategy evaluation (MSE) is the process of using simulation testing to examine the robustness of candidate management strategies to error and uncertainty. MSE involves using (1) a model… (More)
A Management Strategy Evaluation of the harvest policies of the North Pacific Fishery Management Council used for the fishery for walleye pollock (Theragra chalcogramma) in the Gulf of Alaska… (More)
Preparative packed-bed chromatography using polymer-based, compressible, porous resins is a powerful method for purification of macromolecular bioproducts. During operation, a complex, hysteretic,… (More)
Catch quotas for walleye pollock Gadus chalcogrammus, the dominant species in the groundfish fishery off Alaska, are set by applying harvest control rules to annual estimates of spawning stock… (More)
A Markov decision process model is developed to investigate the optimal scheduling of haul setting and retrievals on a factory trawler in the Pacific hake (Merluccius productus) fishery. The model… (More)
By: Jim Berkson, NMFS SEFSC Luiz Barbieri, Florida FWC Steve Cadrin, University of Massachusetts at Dartmouth Shannon Cass-Calay, NMFS SEFSC Paul Crone, NMFS SWFSC Martin Dorn, NMFS AFSC Claudia… (More)
Walleye pollock (Theragra chalcogramma) is the target of one of the world’s largest !sheries and is an important prey species in the eastern Bering Sea (EBS) ecosystem. Little is known about the… (More)