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Predicting Calanus Finmarchicus Abundance from a Climatic Signal

Published online by Cambridge University Press:  11 May 2009

B. Planque
Affiliation:
The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk, NR33 OHT.
P.C. Reid
Affiliation:
Sir Alister Hardy Foundation for Ocean Science, 1 Walker Terrace, The Hoe, Plymouth, Devon, PL1 3BN

Extract

Long-term fluctuations in the abundance of the copepod Calanus finmarchicus in the north-east Atlantic are compared to the North Atlantic Oscillation index over the period 1958–1995. The strong climate-plankton link previously observed is confirmed and a simple linear regression model is constructed with the aim of predicting the abundance of the species several months in advance. For the years 1993–1995 the model predictions are in accordance with observations, but not in 1996 when the abundance of C. finmarchicus fell, although the climatic scenario indicated that a sharp increase should have occurred. The potential causes of this discrepancy are discussed.

Type
Short Communications
Copyright
Copyright © Marine Biological Association of the United Kingdom 1998

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References

Brander, K. & Hurley, P.C.F., 1992. Distribution of early-stage Atlantic cod (Gadus morhua), haddock (Melanogrammus aeglefinus), and witch flounder (Glyptocephalus cynoglossus) eggs on the Scotian Shelf: a reappraisal of evidence on the coupling of cod spawning and plankton production. Canadian Journal of Fisheries and Aquatic Science, 49, 238251.CrossRefGoogle Scholar
Conover, R.J., Wilson, S., Harding, G.C.H. & Vass, W.P., 1995. Climate, copepods and cod: some thoughts on the long-range prospects for a sustainable northern cod fishery. Climate Research, 5, 6982.CrossRefGoogle Scholar
Cushing, D.H., 1990. Plankton production and year-class strength in fish populations: an update of the match/mismatch hypothesis. Advances in Marine Biology, 26, 249293.CrossRefGoogle Scholar
Fromentin, J.-M. & Planque, B., 1996. Calanus and environment in the eastern North Atlantic. 2. Influence of the North Atlantic Oscillation on C. finmarchicus and C. helgolandicus. Marine Ecology Progress Series, 134, 111118.CrossRefGoogle Scholar
Planque, B. & Fromentin, J.-M., 1996. Calanus and environment in the eastern North Atlantic. 1. Spatial and temporal patterns of C. finmarchicus and C. helgolandicus. Marine Ecology Progress Series, 134, 101109.Google Scholar
Planque, B. & Taylor, A.H., in press. Long-term changes in plankton and the climate of the North Atlantic. ICES Journal of Marine Science.Google Scholar
Runge, J.A., 1988. Should we expect a relationship between primary production and fisheries? The role of copepod dynamics as a filter of trophic variability. Hydrobiologia, 167, 6171.CrossRefGoogle Scholar