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Inventaire floristique et écologie des algues des rivières Kambo et Longmayagui de la zone humide de Douala (Cameroun)

Authors: Dibong, SD; Ndjouondo, GP;

Inventaire floristique et écologie des algues des rivières Kambo et Longmayagui de la zone humide de Douala (Cameroun)

Abstract

L’objectif général de l’étude est de contribuer à la connaissance des algues des rivières Kambo et Longmayagui de Douala. Les objectifs spécifiques ont consisté à mesurer les paramètres physico-chimiques des rivières, de faire les inventaires des algues et d’en dégager les variations spatio-temporelles en relation avec le milieu. La zone pélagique et les supports organiques ont été échantillonnés en amont, au milieu et en aval de chaque rivière. Au total, 105 espèces ont été identifiées, parmi lesquelles environ 40,59% de Diatomées, 22,77% de Cyanobactéries, 19% d’Ulvophycées, 12,87% de Zygophycées, 10,09% de Chlorophycées, 7,9% d’Euglénophycées et 1,9% de Chrysophycées. Les Diatomées constituent la classe la plus fréquente dans les prélèvements des deux cours d’eau. Les genres Spirogyra et Navicula sont communes à toutes les stations. Les variations dans la composition des peuplements entre les rivières sont relativement faibles, avec des diversités plus importantes dans la rivière Kambo (92 espèces) et peu élevées dans la rivière Longmayagui (35 espèces).Mots clés : Phytoplancton, périphyton, diversité, rivières, Kambo, Longmayagui.

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Keywords

Phytoplancton, périphyton, diversité, rivières, Kambo, Longmayagui.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Top 10%
Average
Average
gold