International Journal of
Fisheries and Aquaculture

  • Abbreviation: Int. J. Fish. Aquac.
  • Language: English
  • ISSN: 2006-9839
  • DOI: 10.5897/IJFA
  • Start Year: 2010
  • Published Articles: 217

Full Length Research Paper

Socio-economic and cultural values of two species of crabs (Cardisoma armatum Herklots and Callinectes amnicola Rochebrune) in Southern Benin, Africa: Management of post-harvest losses and exoskeletons

Toussaint Mikpon
  • Toussaint Mikpon
  • South Agricultural Research Center, National Institute for Agricultural Research of Benin Attogon, 01 BP 884 Cotonou, Bénin.
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Durand Dah-Nouvlessounon
  • Durand Dah-Nouvlessounon
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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Nadège Adoukè Agbodjato
  • Nadège Adoukè Agbodjato
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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Halfane Lehmane
  • Halfane Lehmane
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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Olaréwadjou Amogou
  • Olaréwadjou Amogou
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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Christine N’Tcha
  • Christine N’Tcha
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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Wassiyath Mousse
  • Wassiyath Mousse
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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Haziz Sina
  • Haziz Sina
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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Hyacinthe Ahissou
  • Hyacinthe Ahissou
  • Biomembrane and Proteins Laboratory, University of Abomey-calavi, 04 BP 0320, ISBA, Champ de foire, Cotonou Bénin.
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Adolphe Adjanohoun
  • Adolphe Adjanohoun
  • South Agricultural Research Center, National Institute for Agricultural Research of Benin Attogon, 01 BP 884 Cotonou, Bénin.
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Lamine Baba-Moussa
  • Lamine Baba-Moussa
  • Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Sciences and Techniques, University of Abomey-Calavi, 05 BP 1604 Cotonou, Benin.
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  •  Received: 29 May 2020
  •  Accepted: 10 September 2020
  •  Published: 30 November 2020

Abstract

Crabs play an important economic and bio-ecological role in most aquatic ecosystems and occupy an important place in the variety of trophic niches. Callinectes amnicola Rochebrune and Cardisoma armatum Herklots are two edible species widely exploited in Benin. The present work aims to i) evaluate the socio-economic and cultural importance of those two crab species, ii) analyze the dynamics of the value chain, and iii) monitor the flow of their resources. Surveys were carried out during February 2018 to September 2019 among target groups in Ouémé, Atlantic and Littoral administrative Departments of Benin through structured and semi-structured interview methods as well as free interview. Results indicate that fishermen/catchers (12.76%), wholesalers/collectors (25.53%) and retailers (61.70%) are the actors involved in the crab value chain. Between 40 and 50% of fishery products are exported to markets in Togo and Ghana. Not all of the exoskeletons resulting from post-capture losses and those resulting from treatments for consumption, in particular C. amnicola (74.46%) and C. armatum (76.59%) are used, which poses an environmental management problem. The gains made in the sector vary from 8.000±2.828 Financial Community African Franc (FCAF) (C. amnicola) to 20.000±21.213 FCAF (C. armatum). The study found that crabs (C. armatum and C. amnicola) have remarkable socio-economic importance in Southern Benin, Africa.

Key words: Crab, economic analysis, monitoring, Benin.