Spatial patterns of ichthyoplankton distribution in relation to hydrographic features in the northern Benguela region

The spatial distribution of the most abundant eggs and larvae of teleost fish species on the continental shelf and slope off the northern Benguela region was studied in Apr 1986. The horizontal and vertical distribution of eggs and larvae were analysed together with environmental data, in order to d...

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Bibliographic Details
Published in:Marine biology 1990-07, Vol.106 (1), p.39-48
Main Author: OLIVAR, M. P
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Engraulis capensis
Fundamental and applied biological sciences. Psychology
Marine
Sardinops ocellatus
Sea water ecosystems
Synecology
Teleostei
Trachurus capensis
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Summary:The spatial distribution of the most abundant eggs and larvae of teleost fish species on the continental shelf and slope off the northern Benguela region was studied in Apr 1986. The horizontal and vertical distribution of eggs and larvae were analysed together with environmental data, in order to determine patterns of ichthyoplankton distribution. Both species composition and relative egg and larval abundance levels exhibited important latitudinal differences during a period of quiescent upwelling with an intense intrusion of Angolan water into the system. The frontal zone appeared to be a nursery ground for the most important pelagic species of the region: Trachurus trachurus capensis, Engraulis capensis , and Sardinops ocellatus . Vertical egg and larval distributions showed evidence of stratification, with highest concentrations located in the uppermost 50 m.
ISSN:0025-3162
1432-1793
DOI:10.1007/BF02114672