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Cytogenotoxic characterization of Porto – Novo lagoon waters in Benin

Author Affiliations

  • 1Laboratoire de Chimie Inorganique et de l’Environnement (LaCIE), Faculté des Sciences et Techniques (FAST), Université d’Abomey - Calavi BP : 4521 Cotonou, République du Bénin
  • 2Laboratoire de Chimie Inorganique et de l’Environnement (LaCIE), Faculté des Sciences et Techniques (FAST), Université d’Abomey - Calavi BP : 4521 Cotonou, République du Bénin
  • 3Laboratoire de Chimie Inorganique et de l’Environnement (LaCIE), Faculté des Sciences et Techniques (FAST), Université d’Abomey - Calavi BP : 4521 Cotonou, République du Bénin
  • 4Laboratoire de Chimie Inorganique et de l’Environnement (LaCIE), Faculté des Sciences et Techniques (FAST), Université d’Abomey - Calavi BP : 4521 Cotonou, République du Bénin
  • 5Laboratoire d’Etude et de Recherche en Chimie Appliquée (LERCA), Ecole polytechnique d’Abomey-Calavi (EPAC), Université d’Abomey- Calavi

Res.J.chem.sci., Volume 13, Issue (1), Pages 1-7, February,18 (2023)


Toxic waste constitutes today a real problem of public health because they are rejected into our rivers without a preliminary treatment. The genetic inheritance of the species halieutics is affected by this pollution what can generate a contamination of the trophic chain. The agricultural and industrial activities produce worn water and several chemical pollutants which are poured in our rivers constituting sources of chemical pollution thus. This pollution is a danger to the development of the local fisheries. Rain water and the urban rejections can also be potential sources of chronic pollution of the rivers. Once the cytogenotoxicity of water and fish of the Porto-Novo lagoon determined, that will make it possible to know the cytogenotoxic map of the lagoon so that a project of depollution of this lagoon is achieved. This study has as principal objectives, the chemical depollution of the lagoon, its valorization in order to booster rocket the productivity of the resources halieutics. This will allow the increase in the local consumption of the products halieutics then the reduction of the importation of fish and other products of fishing frozen in Benin, in order to allowing the development of the local fisheries. The results obtained made it possible to determine the cytogenotoxicity of water and fish fished in the lagoon what revealed a toxicity which varies according to the fish species studied and the sites considered. The reproduction of the various species halieutics is prevented by this toxic pollution which makes the products of fishing unsuitable for consumption. The productivity of the species halieutics will increase when the lagoon is cleansed what will booster the marketing and the local consumption of the local products of fishing. The destruction of the watery ecosystems will be slowed down by this depollution and the conservation of the biodiversity of fauna and the flora of Porto-Novo lagoon would be a reality.


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