Resource degradation of the sea cucumber ﬁshery in Zanzibar, Tanzania: a need for management reform
2010 (English)In: Aquatic Living Resources, ISSN 0990-7440, E-ISSN 1765-2952, Vol. 23, 387-398 p.Article in journal (Refereed) Published
This study assessed the Zanzibar sea cucumber ﬁshery using a multidisciplinary approach. Data was collected by (i) interviewing various groups of actors in the ﬁshery and reviewing management documentation and legislation, (ii) by monitoring catches and (iii) through a visual census of coastal sea cucumber populations in areas open and closed to ﬁshing. The ﬁshery showed clear signs of being unsustainable with high ﬁshing eﬀort, and weak formal and informal management institutions. The ﬁshery operation was characterised by an intricate cross-scale structure with both ﬁshers and sea cucumber products being transported across national borders. The visual census of commercial sea cucumber stocks at three sites open to ﬁshing around Zanzibar showed low densities across the range of sea cucumber value groups including low value species. Furthermore, the diversity of commercial sea cucumber species was lower in ﬁshed reefs than on a protected reef. The poor status of the sea cucumber populations was conﬁrmed by the perception of an overﬁshed resource by the interviewed actors active in the ﬁshery. This was also depicted by the paucity of high value species, and high representation of low value and newly commercialised species in ﬁshers catch. We conclude that the current state of Zanzibar’s sea cucumber populations is compromising the ﬁsheries self-replenishment and existence and that the ﬁshery is in urgent need of a complete management reform.
Place, publisher, year, edition, pages
2010. Vol. 23, 387-398 p.
Bêche-de-mer Fisheries Overﬁshing Holothurians Echinoderms Trepang Western Indian Ocean
IdentifiersURN: urn:nbn:se:su:diva-75513DOI: 10.1051/alr/2011002OAI: oai:DiVA.org:su-75513DiVA: diva2:516972