Data/hora: 01/06/2024 13:49:57

Provedor de dados: | 5
País: | France
Título: | A comparative analysis of Alexandrium catenella/tamarense blooms in Annaba Bay (Algeria) and Thau lagoon (France); phosphorus limitation as a trigger
Autores: | Hadjadji, Imene; Frehi, Hocine; Ayada, Lembarek; Abadie, Eric; Collos, Yves.
Data: | 2014-02
Ano: | 2014
Palavras-chave: | Alexandrium catenella/tamarense; Blooms; Algeria; France; Mediterranean.
Resumo: | Environmental conditions ultimately leading to blooms of the toxic dinoflagellate Alexandrium catenella/tamarense were investigated at two Mediterranean sites (Annaba Bay, Algeria and Thau lagoon, France). Three years were examined in details: 1992 (a pre-Alexandrium period), 2002 (a year with the first bloom in Annaba) and 2010 (a year with a major bloom in Annaba). Most conditions were similar, but ammonium concentrations were much higher in Annaba (up to 100 μM) than in Thau (up to 10 μM). First records of A. catenella/tamarense were in 1995 for Thau and 2002 for Annaba, and coincided with soluble reactive phosphorus (SRP) decreasing below a concentration of about 1 μM. No other environmental variable could be related to those blooms. Thus, it is likely that the large reductions in SRP at both sites led to phosphorus limitation of a certain number of phytoplankton species and favored the development of A. catenella/tamarense.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00174/28574/26995.pdf

DOI:10.1016/j.crvi.2013.11.006

Editor: | Elsevier France-editions Scientifiques Medicales Elsevier
Relação: | http://archimer.ifremer.fr/doc/00174/28574/
Formato: | application/pdf
Fonte: | Comptes Rendus Biologies (1631-0691) (Elsevier France-editions Scientifiques Medicales Elsevier), 2014-02 , Vol. 337 , N. 2 , P. 117-122
Fonte: | 2013 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.