Data/hora: 01/06/2024 15:44:54

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Nutrient and microbial dynamics in eutrophying shrimp ponds affected or unaffected by vibriosis
Autores: | Lemonnier, Hugues; Courties, Claude; Mugnier, Chantal; Torreton, Jean-pascal; Herbland, Alain.
Data: | 2010-03
Ano: | 2010
Palavras-chave: | Aquaculture; Shrimp; Eutrophication; Ecosystem shift; Phytoplankton; Vibriosis.
Resumo: | A field survey was conducted on two intensive shrimp farms using similar technical practices: one (DF) historically affected by a vibriosis, the other (HC) in which the pathogen has been observed although no mortality event has occurred. Because historical data suggest that eutrophication process may directly or indirectly play a role in the disease outbreak, we focussed our research on its dynamics. A higher variability of the phytoplanktonic compartment linked to an imbalance in the molar N:P ratio was observed in farm DF compared to farm HC, implying a modification on the linkage between the bacteria and phytoplankton compartments at DF. The beginning of the mortality outbreak at DF followed a shift from picoto nanophytoplankton. The organic matter mineralization process at the water-sediment interface may explain the disturbance observed in the water column during eutrophication. The consequences of this disturbance on shrimps' health status and pathogen ecology are discussed. (C) 2009 Elsevier Ltd. All rights reserved.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00002/11368/8119.pdf

DOI:10.1016/j.marpolbul.2009.10.012

Editor: | Elsevier
Relação: | http://archimer.ifremer.fr/doc/00002/11368/
Formato: | application/pdf
Fonte: | Marine Pollution Bulletin (0025-326X) (Elsevier), 2010-03 , Vol. 60 , N. 3 , P. 402-411
Fonte: | 2010 Elsevier B.V. All rights reserved.