Abundance Dynamic of Vibrio Cells Associated with Freshwater Shrimps Atyidae (Crustacea-Decapoda) in the Coastal Surface Waters of Cameroon (Central Africa): Assessment of the Role of some Environmental Factors - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue International Journal of Current Microbiology and Applied Sciences Année : 2015

Abundance Dynamic of Vibrio Cells Associated with Freshwater Shrimps Atyidae (Crustacea-Decapoda) in the Coastal Surface Waters of Cameroon (Central Africa): Assessment of the Role of some Environmental Factors

Résumé

The abundance dynamics of planktonic Vibrio cells and those associated with the freshwater shrimps Atyidae were assessed in the coastal surface waters of Cameroon (Central Africa). Two pathogenic species V. parahaemolyticus and V. alginolyticus were identified. The concentration of Vibrio cells associated to shrimps was relatively high, as compared to the planktonic cells. This concentration was very high during the great rainy season. The concentration of Vibrio associated with Atyidae undergoes variations under the effect of the proliferation of shrimps and influenced by color and rainfall. The physico-chemical analyses showed a strong organic pollution. Low nutrient levels suggested high water column turnover rate, which Vibrio compensated for by using organic matters leaking from shrimp. Stepwise regression analyses showed that the concentration of plaktonic Vibrio cells increase significantly in response to changes to dissolved oxygen and organic matter accumulated in the water column due to anthropogenic activities. Vibrio associated with shrimp Atyidae in surface waters are a real risk of public health.
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Dates et versions

hal-01393948 , version 1 (08-11-2016)

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  • HAL Id : hal-01393948 , version 1

Citer

E Koji, C Lontsi Djimeli, A Tamsa Arfao, V Noah Ewoti, S Tchakonté, et al.. Abundance Dynamic of Vibrio Cells Associated with Freshwater Shrimps Atyidae (Crustacea-Decapoda) in the Coastal Surface Waters of Cameroon (Central Africa): Assessment of the Role of some Environmental Factors. International Journal of Current Microbiology and Applied Sciences, 2015, 4 (6), pp.358-378. ⟨hal-01393948⟩
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