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First record of Hemigrapsus takanoi (Crustacea: Decapoda: Grapsidae) on the western coast of northern Cotentin, Normandy, western English Channel

Published online by Cambridge University Press:  21 October 2010

Jean-Claude Dauvin  and
Jean-Baptiste Delhay
Jean-Claude Dauvin*
Affiliation:
Université de Lille 1, Sciences et Technologies, Station Marine de Wimereux, UMR 8187 CNRS LOG, BP 80, 28 Avenue Foch, F-62930 Wimereux, France
Jean-Baptiste Delhay
Affiliation:
Université de Lille 1, Sciences et Technologies, Station Marine de Wimereux, UMR 8187 CNRS LOG, BP 80, 28 Avenue Foch, F-62930 Wimereux, France
*
Correspondence should be addressed to: J.-C. Dauvin, Université de Lille 1, Sciences et Technologies, Station Marine de Wimereux, UMR 8187 CNRS LOG, BP 80, 28 Avenue Foch, F-62930 Wimereux, France email: [email protected]
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Abstract

The sighting of the brush-clawed shore crab Hemigrapsus takanoi on the western coast of northern Cotentin confirms the extension of this species into the western part of the English Channel. This new sighting remains enigmatic because the Normanno-Breton Gulf circulation patterns do not appear to promote natural transport of crab larvae from the Atlantic or from the eastern part of the English Channel. It has been suggested that the professional oyster transport could be the origin of this species' presence on this part of the French coast.

Keywords

Hemigrapsus takanoibrush-clawed shore crabCotentinEnglish Channel
Type
Research Article
Information
Marine Biodiversity Records , Volume 3 , June 2010 , e101
Copyright
Copyright © Marine Biological Association of the United Kingdom 2010

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References

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