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Provedor de dados:  ArchiMer
País:  France
Título:  Rising water temperatures, reproduction and recruitment of an invasive oyster, Crassostrea gigas, on the French Atlantic coast
Autores:  Dutertre, Mickael
Beninger, Peter G.
Barille, Laurent
Papin, Mathias
Haure, Joel
Data:  2010-02
Ano:  2010
Palavras-chave:  Aquaculture
Climate warming
Coastal waters
Crassostrea gigas
Reproductive cycle
Oyster larvae
Resumo:  The recent appearance and invasion of feral oysters (Crassostrea gigas) along the northern European Atlantic coast, underscores the necessity to investigate the relationship between environmental variables, reproductive physiology, larval development and recruitment. We studied these relationships at both high (HT) and intermediate (IT) - turbidity sites, through historical data on water temperatures, multi-parameter environmental probes, histological analyses, and field collections of planktonic larvae and settled post-larvae in 2005 and 2006. A progressive warming trend was observed, especially since 1995, when oyster proliferation first became severe. Threshold temperatures for oocyte growth, larval development and settlement were achieved in both 2005 and 2006. The HT site showed greater numbers of larvae and post-larvae than the IT site for both years, with the highest numbers of post-larvae observed at both sites during the warmer summer of 2006. These results suggest that increased temperatures in northern European waters allow successful reproduction, larval development, and recruitment of C gigas. High turbidity conditions further enhance this success. (C) 2009 Elsevier Ltd. All rights reserved.
Tipo:  Text
Idioma:  Inglês

Editor:  Elsevier Sci Ltd
Formato:  application/pdf
Fonte:  Marine Environmental Research (0141-1136) (Elsevier Sci Ltd), 2010-02 , Vol. 69 , N. 1 , P. 1-9
Direitos:  2009 Elsevier Ltd All rights reserved.

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