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

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Research Paper 01/12/2016
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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)

Jean Noel Yapi, Célestin Mélecony Blé, Olivier Assoi Etchian, Vincent Kadjo, Dofara Soro, Kouakou Yao
Int. J. Biosci. 9(6), 45-54, December 2016.
Copyright Statement: Copyright 2016; The Author(s).
License: CC BY-NC 4.0

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.

Ansar EJ, Bashir RM. 2007. Fishery and culture potentials of the mangrove oyster (Crassostrea gasar) in Nigeria Research Journal of Biological Sciences  2, 392-994.

Cormer-Salem MC. 1989. Une pratique revalorisée dans un système de production en crise. La cueillette des huitres par les femmes diola de Basse Casamance (Sénégal). Cahier Orstom série Sciences Hummaine. 25(1-2), 91-107.

Da Costa KS, Konan KF. 2005. Lac Kossou: Potentiel halieutique et modalité d’un développement durable de la pêche. FAO/ PMEDP, Projet Pilote Pêche Kossou GCP/ INT/735/UK, Rapport. Expertise, 200 p.

Da Costa KS, Dietoa YM. 2007. Typologie de la pêche sur le lac Faé (Côte d’Ivoire) et implication pour une gestion rationnelle des ressources halieutiques. Bulletin. Fr. Pêche Pisciculture 384(7), 1-14.

Diadhiou HD, Le Pennec M. 2000. Reproduction of the oysters Crassostrea gasar (Mollusc, Bivalve) in southern Casamance (Senegal). Marire Life 10, 19-25.

Girard G, Sircoulon J. 1968. Aperçu sur les régimes hydrologiques de Côte d’Ivoire. Centre ORSTOM Adiopodoumé, Côte d’Ivoire, 56 p.

Gourène G, Teugels GG, Hugueny B, Thys VD, Audenaerde DFE. 1999. Évaluation de la diversité ichtyologique d’un bassin Ouest-Africain après la construction d’un barrage. Cybium 23(2), 147-160.

Koffi BCY. 1997. La pêche artisanale maritime en Côte d’Ivoire : étude géographique. Thèse de Doctorat. Université de Nantes, France, 324 p.

Lapègue S, Boutet I, Leita A, Heurtebise S, Garcia P, Thiriot-Quévreux C, Boudry P. 2002. Trans-Atlantic distribution of a mangrove oyster species Revealed by 16S mtDNA and karyological analyses. Biological Bulletin 202, 232-1242.

Momodou N, Ousman D. 2011. Value chain of the artisanal oyster harvesting fishery of the Gambia, Gambia-Senegal Sustainable Fisheries Program (Ba Nafaa), 80 p.

Niekles M. 1995. Scaphopodes et Lamellibrances recoltés dans l’Ouest Africain. Atlantide report. 3, 93-237.

Tah L, Da Costa KS, Kouassi JN, Moreau J. 2009. Effort de pêche et production piscicole au lac d’Ayamé I (bassin de la Bia ; Côte d’Ivoire) après le départ des pêcheurs « Bozo ».Agronomie Africaine 21 (1), 1-115.

Vanga AF. 2001. Conséquences socio- économiques de la gestion des ressources naturelles cas des pêcheries dans les lacs d’Ayamé et de Buyo (Côte d’Ivoire). Thèse de Doctorat Unique. Sciences et gestion de l’environnement, Université d’Abobo- Adjamé, Côte d’Ivoire. 210 p.

Vanga AF, Gourène G, Ouattara M. 2002. Impact de la pêche sur la disponibilitéen poissons dans les régions des lacs d’Ayamé et Buyo (Côte d’Ivoire).Archive Scientifique Centre Recherche Océanologique Abidjan 17 (2), 1-12.

Vanga AF. 2004. Conséquences socio- économiques de l’expulsion des pêcheurs étrangers en Côte d’Ivoire: lacs d’Ayamé et de Buyo. Revue Europeennedes Migrations Internationales 20 (1), 197-205.

Von CR. 1995. Sea shell of tropical West Africa Marine Bivalve Mollusc from Rio de Oro to Southern Angloa. ORSTOM/C. Hemmen Wiesbaben.

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