Patterns of microphytoplankton biomass and diversity in the southern Alboran Sea

Idmoussi, H.; Somoue, L.; Peters, F.; /Demarcq, Hervé; /Laabir, Mohamed; Estrada, M.; Arin, L.; Makaoui, A.; Ettahiri, O.; Baibai, T.; Charib, S.; Hilmi, K.; Errhif, A.

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dc.creator	Idmoussi, H.
dc.creator	Somoue, L.
dc.creator	Peters, F.
dc.creator	/Demarcq, Hervé
dc.creator	/Laabir, Mohamed
dc.creator	Estrada, M.
dc.creator	Arin, L.
dc.creator	Makaoui, A.
dc.creator	Ettahiri, O.
dc.creator	Baibai, T.
dc.creator	Charib, S.
dc.creator	Hilmi, K.
dc.creator	Errhif, A.
dc.date	2022
dc.date.accessioned	2022-04-27T17:37:49Z
dc.date.available	2022-04-27T17:37:49Z
dc.identifier	https://www.documentation.ird.fr/hor/fdi:010084494
dc.identifier	oai:ird.fr:fdi:010084494
dc.identifier	Idmoussi H., Somoue L., Peters F., Demarcq Hervé, Laabir Mohamed, Estrada M., Arin L., Makaoui A., Ettahiri O., Baibai T., Charib S., Hilmi K., Errhif A.. Patterns of microphytoplankton biomass and diversity in the southern Alboran Sea. 2022, 23 (1), p. 103-114
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/169106
dc.description	The southern Alboran Sea is a highly dynamic region in the Mediterranean. However, there is few data on microphytoplankton which is, an important component of the marine ecosystem. We therefore collected microphytoplankton samples and related the biomass and diversity patterns to ambient variability, considering cross-shore and longitudinal gradients. There was a general east-ward decrease in both species richness and biomass, with Cape Three Forks as a transitional point. Diversity increased in coastal areas and decreased with depth. High chlorophyll-a concentrations corresponded to low temperature and low salinity waters, in-dicating the Atlantic origin. Microphytoplankton biomass was low in comparison with total chlorophyll, suggesting a dominance of nano-and picophytoplankton. Biomass values increased in the stretch between Cape Three Forks and Al Hoceima Bay, an area highly influenced by upwelled water originating from the northern Alboran Sea. We suggest that the Western Alboran Gyre enhances the development of dinoflagellates while local upwelling enhances the development of diatoms. A statistical relation-ship was found between microphytoplankton biomass and diversity, especially when diversity was estimated as species richness. These results are crucial for understanding microphytoplankton dynamics and trends in an area that is undergoing climate-derived changes and biodiversity losses.
dc.language	EN
dc.subject	Microphytoplankton
dc.subject	Southern Alboran Sea
dc.subject	Diversity
dc.subject	Biomass
dc.subject	Coastal and offshore waters
dc.title	Patterns of microphytoplankton biomass and diversity in the southern Alboran Sea
dc.type	text
dc.coverage	MEDITERRANEE
dc.coverage	ALBORAN MER