Sabiia Seb
        Busca avançada

Botão Atualizar

Botão Atualizar

Registro completo
Provedor de dados:  ArchiMer
País:  France
Título:  Structuration spatiale des peuplements zooplanctoniques et fonctionnement hydrodynamique en milieu lagunaire
Autores:  Jouffre, D
Lamhoai, T
Millet, B
Amanieu, M
Data:  1991
Ano:  1991
Palavras-chave:  ZOOPLANKTON
Resumo:  In order better to understand brackish ecosystem functioning, this study deals with zooplankton spatial organization in a North-Mediterranean lagoon (etang de Thau). A statistical treatment - spatial contiguity constrained clustering - is used to divide the lagoon into several homogeneous zones with regard to zooplankton communities. Confrontation between biological and physical patterns (hydroclimatic context data together with results of a numerical simulation of hydrodynamic circulation in the lagoon) tends to show that: 1) Zooplankton community spatial patterns have a short-term significance (few days) and do not reveal any seasonal characteristic; 2) Inversion of the water flows between the lagoon and the sea plays a major role in structuring and destructuring the biological system: the zooplankton compartment appears to be particularly sensitive to this hydrodynamic constraint even when it is a very smooth one (e.g. each event affecting only a small percentage of the total volume of the lagoon); 3) Independently of these short-term hydroclimatic events, the general pattern of zooplankton distribution appears very well correlated to the hydrodynamic energy dispersion deduced from a numerical model simulating the water circulation into the lagoon. In agreement with other plankton studies, these results encourage the introduction of physical descriptors into the modelling of biological processes in the aquatic environment. It seems also true that - especially in these kinds of ecosystem (lagoons) - the biology is strongly controlled by the physical system.
Tipo:  Text
Idioma:  Francês
Editor:  Gauthier-Villars
Formato:  application/pdf
Fonte:  Oceanologica Acta (0399-1784) (Gauthier-Villars), 1991 , Vol. 14 , N. 5 , P. 489-504

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC:

Valid HTML 4.01 Transitional