Distribution des copépodes en relation avec la dynamique du filament de Cap Ghir, (Côte atlantique du Maroc) | Copepods distribution in relation to a Cape Ghir upwelling filament (Moroccan Atlantic coast)
2012
Salah, Siham | Ettahiri, Omar | Berraho, Amina | Benazzouz, Aïssa | Elkalay, Khalid | Errhif, Ahmed
The study of the Cape Ghir upwelling filament (31°N) focalizes to describe the dispersive mechanism, caused by the upwelling. The zooplankton was sampled during five oceanographic cruises conducted between 2008 and 2009. Surface temperature and chlorophyll “a” were also measured along with sampling. The distribution of environmental parameters accused extensions that show the path of the filament. Copepods constitute the largest fraction of zooplankton community and represented by 86 species, majorly dominated by Acartia clausi and Oncaea venusta. A number of species of deep or cold waters have been recorded in the area corresponding to a net resurgence of cold water. The analysis of the copepods distribution allowed to view the path of the filament at different times of the year. The distribution of the species A. clausi, neritic specie was observed in the open ocean, shows a result of this dynamic.
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