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 Academic Research Journal of Agricultural Science and Research
 

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Academic Research Journal of Agricultural Science and Research 

Vol. 6(1), pp. 11-19. January, 2018.

ISSN: 2360-7874 

 DOI: 10.14662/ARJASRD2017.098

Full Length Research

FISH DIVERSITY ASSESSMENT IN A MANGROVE ECOSYSTEM OF SOUTH BENIN (WEST AFRICA)

 

Louis Babatoundé LAWANI 1,2, Aliou FOUSSENI 1,2, Vincent Joseph MAMA 1; Antoine CHIKOU 2, Djiman LEDEROUN 2, Philippe LALEYE 2

 

1 National Institute for Agricultural Research of Benin (INRAB), 01 BP 988 Cotonou, Benin.

2 Laboratory of Hydrobiology and Aquaculture, Faculty of Agricultural Sciences. University of Abomey-Calavi (LHA) 01 BP 526 Benin.

Corresponding: mamvincent@yahoo.fr, alioufouss@yahoo.fr 

 

Accepted 23 December 2017

Abstract

 

Fish is an important food for many rural populations particularly in Africa. In order to assess the current state of those resources of the Ouidah lagoon in south Benin, a study has been carried out. It aims at investigating on the water quality and to assess the fish diversity of Ouidah lagoon. In this study, water quality parameters such as temperature, pH, dissolved oxygen and depth were measured monthly. Common fishing gears were identified and fish landing from local fishermen were recorded monthly. The results of the water quality analysis show that there is a significant difference between the values of dissolved oxygen, pH and depth of the different stations unlike other physicochemical parameters. Twenty-one (21) fish species belonging to sixteen (16) families were identified. Cichlids were the most represented family (19.09%) with four species, followed by Clupeids (9.52%) with two species. Other fish families such as, Elopidae, Gerreidae, Haemilidae, Aralichthydae, are represented only by one specie. In Ouidah lagoon, local fishermen use different gears for fishing: gillnets, throwing nets and traps. Biological indexes calculated showed differences between fish diversity. It is noted also a bad distribution of individuals from one specie to another. Fish distribution in Ouidah lagoon has been influenced by sea through fish migrations and the rehabilitation of the mangrove swamp in the zone which provides better ecological conditions.

Key words:
Fish diversity, Water quality, exploitation, Ouidah lagoon, south Benin.

 

How to cite this article: LAWANI LB, FOUSSENI A, MAMA VJ, CHIKOU A, LEDEROUN D, LALEYE P (2018). FISH DIVERSITY ASSESSMENT IN A MANGROVE ECOSYSTEM OF SOUTH BENIN (WEST AFRICA). Acad. Res. J. Agri. Sci. Res. 6(1): 11-19

 

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Current Issue: January 2018

 

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