Data/hora: 13/06/2024 06:14:53

Provedor de dados: | 5
País: | France
Título: | Cartographie krigée des mollusques suspensivores compétiteurs trophiques des huîtres du bassin de Marennes-Oléron : l'implications pour la planification de l'échantillonnage
Autores: | Sauriau, Pierre-guy; Bacher, Cedric.
Data: | 1991
Ano: | 1991
Palavras-chave: | Marennes Oléron; Crassostrea gigas; Krigeage; Suspensivore; Echantillonnage stratifié; Peuplement benthique.
Resumo: | Stock assessement of wild soft-bottom mol/uses has been part of a general approach to shellfish management in oyster farming in Marennes-Oleron Bay. A sampling survey is described as a stratified random sampling after optimum allocation of the sample sire in each stratum. The aim of this study is ta ilIustrate the use of kriging techniques in the case of suspension-feeders. Regarding suspension-feeding molluscs. trophic competitors of the oyster Crassostrea gigas the whole stratified design produced an estimation with a precision around 25%. Then the geostatistical technique. i.e. kriging was used to depict the spatial and variability patterns of several trophic groups. The biomass data are expressed in ash-free. dry-weight units. In addition, the characteristics of the spatial distribution of suspension feeders revealed by the kriging analysis. are compared to the initial features and results of the stratified plan
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1991/publication-3055.pdf
Editor: | Institut océanographie
Relação: | http://archimer.ifremer.fr/doc/00000/3055/
Formato: | application/pdf
Fonte: | J. Rech. Océanogr. (Institut océanographie), 1991 , Vol. 16 , N. 1 , P. 1-4