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Long-term changes in the diel vertical migration behaviour of zooplankton

Hays, G.C., Warner, A.J. and Lefevre, D. 1996, Long-term changes in the diel vertical migration behaviour of zooplankton, Marine ecology progress series, vol. 141, pp. 149-159.

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Title Long-term changes in the diel vertical migration behaviour of zooplankton
Author(s) Hays, G.C.
Warner, A.J.
Lefevre, D.
Journal name Marine ecology progress series
Volume number 141
Start page 149
End page 159
Total pages 11
Publisher Inter-Research
Place of publication Oldendorf, Germany
Publication date 1996-10-03
ISSN 0171-8630
1616-1599
Keyword(s) zooplankton
Diel vertical migration
long-term patterns
North Sea
predator evasion
Summary Samples historically collected and analysed by the Continuous Plankton Recorder survey were used to examine long-term (1958 to 1994) patterns in the normal diel vertical migration (NDVM) behaviour of 7 copepod taxa in the North Sea: Calanus finmarchicus C5-C6; Calanus spp. C1-C4; Centropages typicus; Centropages hamatus; Temora longicornis; Acartia clausii and Para-Pseudocalanus (this last group included all Paracalanus and Pseudocalanus species). The ratio of night:day abundance near the surface was used as a measure of the extent of NDVM. For all 7 taxa, the extent of NDVM between 1958 and 1994 co-varied with the abundance of herring Clupea harengus in the North Sea. Fisheries data show that during this period the herring stock was a good indicator of the overall abundance of planktivorous fish in the North Sea. These results suggest that changes in the abundance of planktivorous fish in the North Sea over recent decades have resulted in modifications in the NDVM behaviour of many zooplankton taxa.
Language eng
Field of Research 069999 Biological Sciences not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©1996, Inter-Research
Persistent URL http://hdl.handle.net/10536/DRO/DU:30058276

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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