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The energetics of migration by selective tidal stream transport: an analysis for plaice tracked in the southern North Sea

Published online by Cambridge University Press:  11 May 2009

J. D. Metcalfe
Affiliation:
Ministry of Agriculture, Fisheries and Food, Fisheries Laboratory, Lowestoft, Suffolk, NR33 OHT
G. P. Arnold
Affiliation:
Ministry of Agriculture, Fisheries and Food, Fisheries Laboratory, Lowestoft, Suffolk, NR33 OHT
P. W. Webb
Affiliation:
School of Natural Resources, University of Michigan, Ann Arbor, Michigan 48109, USA

Abstract

Adult plaice (Pleuronectes platessa L.) in the southern North Sea use selective tidal stream transport to migrate between their summer feeding grounds and winter spawning grounds. The fish come up into midwater when the tidal stream is flowing in one direction, but remain on the bottom when it is flowing in the opposite direction. This behaviour can theoretically save energy, which can be used for growth or reproduction. Alternatively, it may provide a transport system by means of which fish that have no ability to navigate over long distances can be conveyed reliably between their feeding grounds and spawning grounds.

Information

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1990

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