Publications des scientifiques de l'IRD

Petit Didier, Gerlotto François, Petitgas Pierre. (1997). Data stratification and pelagic fish density evaluation in Java Sea. In : Petit Didier (ed.), Cotel Pascal (ed.), Nugroho D. (ed.). Proceedings of acoustics seminar AKUSTIKAN 2. Luxembourg (LUX) ; Jakarta (IDN) ; Paris : Union Européenne ; CRIFI ; ORSTOM, p. 79-90. AKUSTIKAN : Seminar, 2., Bandungan (IDN), 1996/05/27-29. ISBN 979-8186-64-8.

Titre du document
Data stratification and pelagic fish density evaluation in Java Sea
Année de publication
1997
Type de document
Partie d'ouvrage
Auteurs
Petit Didier, Gerlotto François, Petitgas Pierre
In
Petit Didier (ed.), Cotel Pascal (ed.), Nugroho D. (ed.), Proceedings of acoustics seminar AKUSTIKAN 2
Source
Luxembourg (LUX) ; Jakarta (IDN) ; Paris : Union Européenne ; CRIFI ; ORSTOM, 1997, p. 79-90 ISBN 979-8186-64-8
Colloque
AKUSTIKAN : Seminar, 2., Bandungan (IDN), 1996/05/27-29
Biomass evaluation by means of echo-integration, needs to be applied with strictness. The better the dominant factors acting on the area are targeted and analyzed, the better will be the accuracy of estimation. A phase of descriptive observation is necessary, taking into account abiotic and biotic factors, as well as the one on species behaviour, as it can appear throughout the acoustics tool. This descriptive stage will comfort the elaboration of a stratification which will serve as a model to calculate the abundance level and its accuracy. During acoustic cruises performed from 1992 to 1994 in the Java Sea open waters, various parameters were measured. Regional differences can be observed, and they allow a three-area stratification to be elaborated. (Résumé d'auteur)
Plan de classement
Synécologie [036MILMAR02]
Descripteurs
RESSOURCES HALIEUTIQUES ; POISSON MARIN ; ESPECE PELAGIQUE ; DENSITE DE POPULATION ; ACQUISITION DE DONNEES ; ECHOINTEGRATION ; REPARTITION GEOGRAPHIQUE ; VARIATION SPATIALE ; STRATIFICATION
Description Géographique
INDONESIE
Localisation
Fonds IRD [F A010017245]
Identifiant IRD
fdi:010017251
Contact