Ecosystem Variability in West Greenland Waters

A review of the climate conditions off West Greenland during the past 50 years shows large variability in the atmospheric, oceanographic and sea-ice variables, as well as in fish stocks. A positive relationship is found between water temperature and the recruitment of cod and redfish, whereas the re...

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Bibliographic Details
Published in:Journal of Northwest Atlantic fishery science 2004, Vol.34, p.13-28
Main Authors: Buch, E, Pedersen, S A, Ribergaard, M H
Format: Article
Language:English
Subjects:
Atmospheric forcing
Climatic conditions
Environmental changes
Fish
Fish stocks
Fishery resources
Gadus morhua
Marine
Marine crustaceans
Marine fishes
Ocean-atmosphere system
Oscillations
Pandalus borealis
Prediction models
Recruitment
Recruitment (fisheries)
Reinhardtius hippoglossoides
Sea ice
Sebastes
Shellfish
Variability
Water temperature
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Summary:A review of the climate conditions off West Greenland during the past 50 years shows large variability in the atmospheric, oceanographic and sea-ice variables, as well as in fish stocks. A positive relationship is found between water temperature and the recruitment of cod and redfish, whereas the recruitment of shrimp and halibut is negatively related to temperature. Observed shifts in the hydrographic conditions during the second half of the 1990s indicate that some changes in the environment may be expected in the coming years. Relationships between the past variations in fish resources, hydrographic conditions, and the large-scale climatic conditions, as expressed by the North Atlantic Oscillation (NAO), strongly support the incorporation of environmental variability into prediction models for fish recruitment and therefore into the assessment of the fish resources.
ISSN:0250-6408
1682-9786
1813-1859
DOI:10.2960/J.v34.m479