Actors and effort of the artisanal harvesting of mangrove oyster Crasostrea gasar along the littoral lagoons Ebrié and Aby

This work characterizes the sector of oyster Crassostrea gasar on the Ebrié and Aby lagoons. It aims atcollecting data on the sector of oyster. Which results would be used to find strategies for an optimization of theeconomical income of actors and a durable management of the sector. Thus, an enquiry was carried out near theoyster harvesters during 12 months (from May 2015 to April 2016). This investigation touched 80 oysterharvesters of which 39 in Assinie, 27 in Grand-Bassam and 14 in Azito. According to the results, the oysterharvesting is dominated by the nationals (87.5%). The foreigners Bennis, Ghanaians and Togolese are alsopresent (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%. Thesector records as many unmarried as married in foreign people. The unmarried proportion is 1.12 times higherthan the married in national people. All actors practise other activities. The greatest number of pirogue exits wasrecorded in Assinie. Pollution, mangrove regression and oyster benches disappearance constitute the majorproblems encountered in the sector. In the three localities, the gathering can be described as artisanal. Theactivity of oyster gathering is important on the socio-economic level. However, the high effort of gathering, themangrove regression and the pollution of the habitat of oyster constitute an obstacle for a durable managementexploitation of the species.