Definition and characterization of data needs to describe the potential effects of increased atmospheric CO2 on marine fisheries from the northeast Pacific Ocean. [Theragra chalcogramma; Clupea harengus pallasi; Pandalus borealis; Limanda aspera]
Four northeast Pacific region case study species were studied to determine individual fishery responses to climate change. These fishes (Alaska pollock, Theragra chalcogramma; Pacific herring, Clupea harengus pallasi; pink shrimp, Pandalus borealis; and yellowfin sole, Limanda aspera) represent a spectrum of habitats and life cycles among commercially important species, and the northeast Pacific (including the eastern Bering Sea) is relatively well-studied and representative of subpolar continental shelf areas that also are important in the North Atlantic. In addition to the general effects of climate, these fisheries have specific climate-related environmental sensitivities: (a) pollock sensitivity to ice extent, cannibalism, and bird and mammal predation in the Bering Sea, and to coastal currents in the Gulf of Alaska; (b) sensitivity of herring to waves, dessication, and probably currents in the immediate vicinity of discrete spawning beaches along the British Columbia coast; (c) the relative insensitivity of bottom-dwelling shrimp to temperature changes; and (d) the probable sensitivity of yellowfin sole to ice extent and to associated changes in food supply caused by alterations in plankton species composition. It is difficult to extrapolate from the results of the present case studies to other fisheries. These results are particularly inapplicable to other major categories of fisheries, including open-ocean, upwelling, and tropical and subtropical shelf fisheries. Such fisheries should be the focus of additional case studies. Possible temperature effects on the incidence of disease and parasitism in fish also should be investigated.
- Research Organization:
- Washington Univ., Seattle (USA). School of Fisheries
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6186091
- Report Number(s):
- DOE/NBB-0075; ON: DE86005431
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON DIOXIDE
ENVIRONMENTAL IMPACTS
FISHES
TEMPERATURE EFFECTS
PACIFIC OCEAN
CLIMATES
CRUSTACEANS
FISHERIES
INFORMATION NEEDS
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
INVERTEBRATES
OXIDES
OXYGEN COMPOUNDS
SEAS
SURFACE WATERS
VERTEBRATES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)