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Lithoglyphus naticoides (Pfeiffer) (Gastropoda: Prosobranchia):distribution in France, population dynamics and life cycle in theSaône river at Lyon (France)

Published online by Cambridge University Press:  15 January 2009

J. Mouthon
J. Mouthon*
Affiliation:
Cemagref, DSA, 3 bis quai Chauveau, CP 220, F-69336 Lyon cedex 09, France
*
[email protected]
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Abstract

Lithoglyphus naticoides was observed for the first time in the north of France at the beginning of the 19th century, but sincethen this gastropod has only succeeded in colonising the eastern half of this country. A map showing its distribution in Franceis proposed. In the Saône river, L. naticoides is an annual species: spawning occurs from March to June and the juveniles thatgenerally appear in May grow rapidly during the summer then spawn and disappear in the spring of the following year. Differentobservations suggest that increased water temperatures occurring in the context of global warming and potential/possible interspecificcompetition are the main reasons for the disappearance of L. naticoides in the Saône river at Lyon since November 2004.

Keywords

Lithoglyphuslife cyclepopulation dynamicsglobal warmingcompetitionSaône river
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 43 , Issue 1 , 2007 , pp. 53 - 59
Copyright
© Université Paul Sabatier, 2007

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