DI-UMONS : Dépôt institutionnel de l’université de Mons

Recherche transversale
Rechercher
(titres de publication, de périodique et noms de colloque inclus)
2016-06-22 - Colloque/Présentation - communication orale - Anglais - 1 page(s)

Terrana Lucas , Todinanahary Gildas, Eeckhaut Igor , "Illegal harvesting and trading of black corals (Antipatharia) in Madagascar: the necessity of field studies" in 13th International Coral Reef Symposium, Honolulu, Hawaii (USA), 2016

  • Codes CREF : Biologie (DI3100)
  • Unités de recherche UMONS : Biologie des Organismes Marins et Biomimétisme (S864)
  • Instituts UMONS : Institut des Biosciences (Biosciences)

Abstract(s) :

(Anglais) Black corals (Cnidaria: Antipatharia) have been used for medicinal purposes or in jewellery manufacturing since a long time in many parts of the world. Except in Hawaii where these fisheries are well known, black coral harvests are usually made without any control and management. This is the case in many tropical islands and particularly in Madagascar, where the illegal trade that exists since decades has expanded dangerously during the last years. Since 2011, an illegal traffic of black corals has been occurring in the main cities of the southern and coastal regions of the country. Hundreds of kilograms of black coral skeletons and a lot of diving material were seized by the authorities and efforts were made by scientists and politicians to stop this illegal trade. Despite this and the continual harvesting of these natural resources, there has been no study in the Indian Ocean region on the biology and ecology of antipatharians. Our research aims at studying black coral populations of the southwestern coast of Madagascar. Here, we explain the current black coral harvesting occurring in the country and present the first insights into the structure and biodiversity of a black coral meadow in Toliara. We identified 19 different morphotypes and described the skeleton spines, mesenteries structures and general morphologies. Due to the general difficulty to identify species among the Order Antipatharia, we also worked on ribosomal ITS regions to assess phylogenetic relationships among these black corals