Data/hora: 01/06/2024 03:26:10

Provedor de dados: | 5
País: | France
Título: | Annelid assemblages in soft bottoms subjected to human impact in the Urias estuary (Sinaloa, Mexico)
Autores: | Mendez, N.
Data: | 2002-05
Ano: | 2002
Palavras-chave: | Annélides; Fonds meubles; L'estuaire d'Urías; Écosystème perturbé; Espèces indicatrices; Annelids; Soft bottoms; Urias estuary; Ecosystem disturbances; Indicator species.
Resumo: | The annelid fauna inhabiting soft bottoms was analysed during February and April, 1997 in the Urfas estuary which is mostly surrounded by mangrove swamps, but is also subjected to the effect of several anthropogenic activities, Classification and ordination techniques were used to perform the characterisation of the system based on the annelid assemblages according to environmental variables (mainly organic matter content and percentage of mud). Three zones were found: (1) 'very polluted zone', in front of a slaughterhouse and a fish processing factory with a total lack of macrofauna due to the strong enrichment of the sediment in organic matters (2) 'polluted zones', characterised by the sporadic presence of oligochaetes in front of a domestic sewage effluent, by the dominance of Capitella capitata close to a thermoelectric plant. and by the dominance of Strebiospio benedicti and oligochaetes in the surroundings of an upstream shrimp farm; (3),unpolluted zones', in the mouth of the estuary and an area surrounded by mangrove trees, with low organic matter content in sediment, high diversity and no dominant species. (C) 2002 Ifremer/CNRS/IRD/Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00322/43315/42939.pdf

DOI:10.1016/S0399-1784(02)01193-3

http://archimer.ifremer.fr/doc/00322/43315/

Editor: | Gauthier-villars/editions Elsevier
Formato: | application/pdf
Fonte: | Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 2002-05 , Vol. 25 , N. 3-4 , P. 139-147

Fonte:

2002 Ifremer/CNRS/IRD/Éditions scientifiques et médicales Elsevier SAS. All rights reserved.

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