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Ontogenetic and seasonal variation in the Diel Vertical Migration of the Copepods Metridia lucens and Metridia longa

Hays, Graeme C. 1995, Ontogenetic and seasonal variation in the Diel Vertical Migration of the Copepods Metridia lucens and Metridia longa, Limnology and oceanography, vol. 40, no. 8, pp. 1461-1465.

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Title Ontogenetic and seasonal variation in the Diel Vertical Migration of the Copepods Metridia lucens and Metridia longa
Author(s) Hays, Graeme C.
Journal name Limnology and oceanography
Volume number 40
Issue number 8
Start page 1461
End page 1465
Total pages 5
Publisher American Society of Limnology and Oceanography
Place of publication Grafton, Wis.
Publication date 1995-12
ISSN 0024-3590
1541-5856
Summary Plankton samples collected and analyzed by the Continuous Plankton Recorder survey were used to examine the length of time spent near the surface in the North Atlantic and the North Sea by three closely related groups of zooplankton (copepodite stages 1-4 Metridia spp., copepodite stages 5-6 Metridia lucens, and copepodite stages 5-6 Metridia longa). For all three groups, the mean daily length of time spent near the surface in each month of the year covaried seasonally with day length. In addition, the amount of time spent near the surface varied significantly between the three groups, being longest for the copepods of smallest body size (C 1-C4 Metridia spp.) and shortest for the copepods of largest body size (C5-C6 M. longa). These results support the suggestion that diel vertical migration serves to reduce the risk of mortality from visually orienting predators
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 ©1995, American Society of Limnology and Oceanography
Persistent URL http://hdl.handle.net/10536/DRO/DU:30058279

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.