2014
DOI: 10.4314/ijbcs.v7i4.31
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Evolution spatio-temporelle de la qualité physico-chimique de l’eau de l’estuaire du fleuve Comoé (Sud-est de la Côte d’ivoire)

Abstract: Dans le but de faire une caractérisation physico-chimique de l'eau de l'estuaire du fleuve Comoé, une combinaison de méthodes d'analyses statistiques avec les données de la variabilité spatio-temporelle de la qualité de l'eau de l'estuaire a été faite. Les résultats de cette combinaison montrent l'existence de trois familles d'eaux : la première famille est représentée par les stations S1, S2, S3 et S4. Ces stations sont caractérisées par une faible minéralisation, une forte turbidité et des températures élevé… Show more

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Cited by 4 publications
(11 citation statements)
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“…This phenomenon mainly takes place in RS with meteorite inputs and in FS with the presence of Comoé river in this estuary. All these processes would explain carbonates contents of these superficial sediments relatively lower than those of Comoé estuary (on average of 0.6 mg/kg per weight of dry sediments in the fine fraction) [53], but also less important than that of modern marine sediments where carbonates formation is estimated at 1.35 ± 0.5 × 1011 C/year [54]. The recent development of this estuary and the climate change would have very slightly affected the annual dynamic of carbonates content of its superficial sediments, despite the decrease in salinity, the increase in moisture content, and above all the change of the nature and the particle size distribution of these substrates.…”
Section: Discussionmentioning
confidence: 92%
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“…This phenomenon mainly takes place in RS with meteorite inputs and in FS with the presence of Comoé river in this estuary. All these processes would explain carbonates contents of these superficial sediments relatively lower than those of Comoé estuary (on average of 0.6 mg/kg per weight of dry sediments in the fine fraction) [53], but also less important than that of modern marine sediments where carbonates formation is estimated at 1.35 ± 0.5 × 1011 C/year [54]. The recent development of this estuary and the climate change would have very slightly affected the annual dynamic of carbonates content of its superficial sediments, despite the decrease in salinity, the increase in moisture content, and above all the change of the nature and the particle size distribution of these substrates.…”
Section: Discussionmentioning
confidence: 92%
“…On the other hand, the relatively cold temperatures of this channel during the upwelling seasons of Atlantic Ocean in front of Abidjan district (GCS and SCS) would lead to the solubilization of Ca precipitates, in particular those of calcites and gypsum [58]. Also, the intense decalcification phenomena that take place in this channel due to the acidic nature of some seasonal water inputs (meteorite inputs in RS [59,60] and Comoé River in FS and SCS [32,53]) would contributed to reducing their presence in these sediments [52].…”
Section: Discussionmentioning
confidence: 99%
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“…A Kodjoboué l'eau donne l'impression d'être stagnante favorisant ainsi la décantation des particules dissoutes.Les paramètres liés à la minéralisation (pH et conductivité) et la transparence apparaissent les plus discriminants dans la répartition des espèces ichtyologiques dans les eaux. Toutes les stations présentent des valeurs de pH proches de la neutralité Keumean et al (2013). ont obtenu des résultats similaires.…”
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