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Actors and effort of the artisanal harvesting of mangrove oyster Crasostrea gasar along the littoral lagoons Ebrié and Aby (Côte d’Ivoire)

By: Jean Noel Yapi, Célestin Mélecony Blé, Olivier Assoi Etchian, Vincent Kadjo, Dofara Soro, Kouakou Yao

Key Words: Typology, Harvesting, Mangrove oyster, Lagoons, Cote d’Ivoire.

Int. J. Biosci. 9(6), 45-54, December 2016.

DOI: http://dx.doi.org/10.12692/ijb/9.6.45-54

Abstract

This work characterizes the sector of oyster Crassostrea gasar on the Ebrié and Aby lagoons. It aims at collecting data on the sector of oyster. Which results would be used to find strategies for an optimization of the economical income of actors and a durable management of the sector. Thus, an enquiry was carried out near the oyster harvesters during 12 months (from May 2015 to April 2016). This investigation touched 80 oyster harvesters of which 39 in Assinie, 27 in Grand-Bassam and 14 in Azito. According to the results, the oyster harvesting is dominated by the nationals (87.5%). The foreigners Bennis, Ghanaians and Togolese are also present (12.5%). All age group and the two sexes are present in the gathering activity. The study records 61.43% of schooling within the nationals group. While the rate of schooling within the foreigners group is 60%. The sector records as many unmarried as married in foreign people. The unmarried proportion is 1.12 times higher than the married in national people. All actors practise other activities. The greatest number of pirogue exits was recorded in Assinie. Pollution, mangrove regression and oyster benches disappearance constitute the major problems encountered in the sector. In the three localities, the gathering can be described as artisanal. The activity of oyster gathering is important on the socio-economic level. However, the high effort of gathering, the mangrove regression and the pollution of the habitat of oyster constitute an obstacle for a durable management exploitation of the species.

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