Multispecies biomass dynamics models reveal effects of ocean temperature on predation of juvenile pollock in the eastern Bering Sea

Multispecies biomass dynamics models reveal effects of ocean temperature on predation of juvenile pollock in the eastern Bering Sea

Walleye pollock (Gadus chalcogrammus) supports one of the largest commercial fisheries in the world. Juvenile pollock are important forage fish in the eastern Bering Sea (EBS) ecosystem, often representing the largest fraction in the diets of major Bering Sea piscivores. Large variability in the EBS...

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Veröffentlicht in:Fisheries oceanography 2020-01, Vol.29 (1), p.10-22
Hauptverfasser: Uchiyama, Tadayasu, Mueter, Franz J., Kruse, Gordon H.
Format: Artikel
Sprache:eng
Schlagworte:
Age
Bering Sea
Biomass
biomass dynamics model
Bottom temperature
Climate change
Cold
Cold water
Continental shelves
Environmental changes
Fish
Fisheries
Fishing
Forage fishes
Freshwater fishes
Gadus chalcogrammus
Interspecific
Interspecific relationships
Marine fishes
multispecies model
Ocean models
Ocean temperature
Piscivores
Pollack
Predation
predator–prey interaction
Water temperature
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Beschreibung
Zusammenfassung:Walleye pollock (Gadus chalcogrammus) supports one of the largest commercial fisheries in the world. Juvenile pollock are important forage fish in the eastern Bering Sea (EBS) ecosystem, often representing the largest fraction in the diets of major Bering Sea piscivores. Large variability in the EBS pollock stock biomass in recent years has been attributed primarily to fluctuations in recruitment. It has been hypothesized that predation rates on forage fishes increase when the cold pool (a body of cold water 
ISSN:1054-6006
1365-2419
DOI:10.1111/fog.12433