Note sur l'évolution des populations de Copépodes pélagiques de l'upwelling mauritanien (mars-avril 1972)
The evolution of a plankton copepod population in the Mauritania upwelling was studied by following a drogue for 9 days, from the point of upwelling till the water-mass dives under offshore waters. The Shannon index of specific diversity and the tropic structure allow separation into several stages in the studied succession. The upwelling brings near the shore a rather poor, highly diverse fauna, with a low filter-feeder rate. The phytoplanktonic development induces an increase in the copepod number. The filter-feeders become dominant and the diversity decreases. When the increase of copepod number stops, the diversity decreases and the omnivore and carnivore rate increases.
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| Main Author: | |
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| Format: | article biblioteca |
| Language: | French |
| Published: |
1973-03
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| Subjects: | Biology, Ecology, Oceanography, Mauritania, upwelling, phytoplankton, zooplankton, |
| Online Access: | http://hdl.handle.net/1834/24831 |
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