Zooplancton et micronecton dans la région du Dôme d'Angola en février-mars 1971 et rélation avec les thons

Herbland, A. and Stretta, J.M. (1973) Zooplancton et micronecton dans la région du Dôme d'Angola en février-mars 1971 et rélation avec les thons. Documents Scientifiques, Centre de Recherches Océanographiques, Abidjan, 4(2), pp. 45-70.

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Abstract

Diurnal variations and geographic distribution of zooplankton and micronekton are studied in the Angola Dome. The small zooplankton species (Copepodids, Copepods, Amphipods, Ostracods, Chaetognaths, etc.) undertake vertical migrations within a 100 m water layer. Most of the micronekton species are below this layer during the day and move towards the surface during the night. The whole region prospected is rich in zooplankton and micronekton species that are present in the upper 100 m layer during the day. Only the South-West region is poor. On the contrary, this latter region is abundant in species that migrate below this layer during the day. The authors think there are 3 main difficulties in establishing good relationships between micronekton and tunas distribution: 1 - inability of micronekton nets to catch the tunas preys; 2 - the great diversity of tunas food; and 3 - the too large delay between micronekton studies and those of stomach contents of tunas.

Item Type: Article
Title: Zooplancton et micronecton dans la région du Dôme d'Angola en février-mars 1971 et rélation avec les thons
Personal Creator/Author:
CreatorsEmail
Herbland, A.
Stretta, J.M.
Journal or Publication Title: Documents Scientifiques, Centre de Recherches Océanographiques, Abidjan
Volume: 4
Number: 2
Page Range: pp. 45-70
Date: June 1973
Issuing Agency: Centre de Recherches Océanographiques, Côte d'Ivoire
Uncontrolled Keywords: Angola Dome; zooplankton; micronecton; tuna fish
Subjects: Biology
Ecology
Oceanography
Item ID: 8019
Depositing User: Ms Maria Kalentsits
Date Deposited: 08 Mar 2012 12:37
Last Modified: 08 Mar 2012 12:37
URI: http://aquaticcommons.org/id/eprint/8019

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