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Start Over Descriptor "FILET" Journal hydrobiologia
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1. Comparaison de deux techniques de prélèvement du zooplancton, le filet et la trappe de Schindler, en lagune Ebrié (Côte d'Ivoire)

Author

Lucien Saint-Jean and Marc Pagano

Subjects
DENSITE, ECHANTILLONNAGE, Ecology, FILET, Cote d ivoire, Aquatic Science, Biology, Plankton, Population density, ABONDANCE, METHODE DE CAPTURE, Pitfall trap, COLLECTEUR DE PLANCTON, ETUDE COMPARATIVE, ZOOPLANCTON, TRAPPE DE SCHINDLER, human activities, PRELEVEMENT, LAGUNE
Abstract

The analysis of net (bottom to surface vertical hauls) and trap samples taken at night shows that net hauls underestimate abundance of all planktonic organisms from nauplii and mollusc larvae to adult calanids. There is no obvious explanation for this. The underestimation probably results from low net filtering efficiency. The mean ratio between trap and net observed densities is 1.46 (1.2 to 1.9) and does not change significantly according to the organisms.

Published
1989

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