Changes in catchability of cod, haddock and whiting associated with the Scottish seine-net fleet
Cook, R.M.; Armstrong, D.W. (1985). Changes in catchability of cod, haddock and whiting associated with the Scottish seine-net fleet. J. Cons. - Cons. Int. Explor. Mer 42(2): 171-178
In: Journal du Conseil. Conseil International pour l'Exploration de la Mer: Copenhague. ISSN 0020-6466, meer
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| Trefwoorden |
Analysis > Mathematical analysis
ANE, North Sea
Catchability
Population dynamics
Population functions > Mortality > Fishing mortality
Pisces [WoRMS]
Noordzee [Marine Regions]
Marien/Kust |
| Auteurs | | Top |
- Cook, R.M.
- Armstrong, D.W.
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| Abstract |
The catchability coefficient Q of cod, haddock and whiting associated with the Scottish seine-net fleet is examined. Cod and haddock show increasing catchability for the period 1963 to 1979. The rise in Q is related to the spatial distribution of the fleet as vessels increasingly fish in areas of high fish abundance. Additionally, for haddock, catchability is related to year-clas strength. The utility of catchability trends in the prediction of fishing mortality is discussed. |
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