Changes In Size At Age And Condition Of Cod (Gadus Morhua) Off Labrador And Eastern Newfoundland During 1978-2000 ...
No abstracts are to be cited without prior reference to the author.The size at age and condition of cod (Gadus morhua) off Labrador and eastern Newfoundland (Northwest Atlantic Fisheries Organization Divisions 2J+3KL) were monitored by sampling catches during research bottom-trawl surveys in the off...
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| Format: | Conference Object |
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ASC 2001 - V - Theme session
2024
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| Online Access: | https://dx.doi.org/10.17895/ices.pub.25636272 https://ices-library.figshare.com/articles/conference_contribution/Changes_In_Size_At_Age_And_Condition_Of_Cod_Gadus_Morhua_Off_Labrador_And_Eastern_Newfoundland_During_1978-2000/25636272 |
| Summary: | No abstracts are to be cited without prior reference to the author.The size at age and condition of cod (Gadus morhua) off Labrador and eastern Newfoundland (Northwest Atlantic Fisheries Organization Divisions 2J+3KL) were monitored by sampling catches during research bottom-trawl surveys in the offshore during the autumns of 1978-2000. There was considerable spatial, temporal and individual variability in both size at age and condition. Previous investigations have provided evidence that some of the annual variablity in these attributes is related to changes in ocean temperature, stock size and the biomass or availability of prey, notably capelin (Mallotus villosus). However, such explanations are often insufficient because the annual patterns of change varied spatially within the stock. Inadeqacies in sampling, changes in fish distribution, very high apparent mortality and uncertainty regarding trends in prey abundance contribute to difficulty in discerning annual variability in well-being of the cod. Some ... |
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