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Reproductive traits of Gobius niger (Teleostei: Pisces) following a salinity stress: is it really a sedentary lagoon species?

Published online by Cambridge University Press:  01 October 1999

C. Pampoulie ,
F. Priour ,
J.L. Bouchereau ,
E. Rosecchi  and
A.J. Crivelli
C. Pampoulie
Affiliation:
Station Biologique de la Tour du Valat, Le Sambuc, F-13200 Arles, France Laboratoire d'Hydrobiologie Marine et Continentale, Université Montpellier II, Sciences et Techniques du Languedoc, cc 093, Place E. Bataillon, F-34095 Montpellier cedex 5, France
F. Priour
Affiliation:
Station Biologique de la Tour du Valat, Le Sambuc, F-13200 Arles, France
J.L. Bouchereau
Affiliation:
Laboratoire d'Hydrobiologie Marine et Continentale, Université Montpellier II, Sciences et Techniques du Languedoc, cc 093, Place E. Bataillon, F-34095 Montpellier cedex 5, France
E. Rosecchi
Affiliation:
Station Biologique de la Tour du Valat, Le Sambuc, F-13200 Arles, France
A.J. Crivelli
Affiliation:
Station Biologique de la Tour du Valat, Le Sambuc, F-13200 Arles, France
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Abstract

In 1993, a 100-y return-time flood brought about major hydrological changes in the Vaccarès Lagoon (Rhône Delta, France). Four years after the floods, Gobius niger had disappeared from the lagoon. Only the fall in salinity can explain this change. Reproductive traits in 1993 and 1994 were compared to determine the choices this species takes to improve its fitness in such unfavourable conditions. Evidence suggesting that G. niger is not a sedentary lagoon species is also discussed.

Type
SHORT COMMUNICATION
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 79 , Issue 5 , October 1999 , pp. 961 - 962
Copyright
© 1999 Marine Biological Association of the United Kingdom

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