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On the population biology of the common shrimp Crangon crangon (L.) (Crustacea: Caridea) in the Severn Estuary and Bristol Channel

Published online by Cambridge University Press:  11 May 2009

P. A. Henderson
Affiliation:
Marine Biology Unit, Central Electricity Generating Board, Fawley, Southampton SO4 1TW
R. H. A. Holmes
Affiliation:
Marine Biology Unit, Central Electricity Generating Board, Fawley, Southampton SO4 1TW

Extract

A 5-year study of the population biology of the common shrimp Crangon crangon (L.) in the Bristol Channel is reported. Samples were collected from three commercial fishermen and from the filter screens of five power stations taking water from the estuary.

The Severn Estuary and Bristol Channel were found to contain a single shrimp population which undertook regular seasonal migrations in order to avoid low salinities and to reproduce. Previous studies had assumed that the regions held separate populations which migrated to avoid low winter temperatures.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1987

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