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Managing sea cucumber fisheries and aquaculture : Studies of social-ecological systems in the Western Indian Ocean
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- Eriksson, Hampus, 1979- (författare)
- Stockholms universitet,Systemekologiska institutionen,Marine Ecotoxicology
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- de la Torre-Castro, Maricela, Assistant Professor (preses)
- Stockholms universitet,Systemekologiska institutionen
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- Castilla, Juan Carlos, Professor (opponent)
- Universidad Pontifica Catolica, Santiago, Chile, Department of Ecology
- (creator_code:org_t)
- ISBN 9789174475159
- Stockholm : Department of Systems Ecology, Stockholm University, 2012
- Engelska 43 s.
- Doktorsavhandling (övrigt vetenskapligt/konstnärligt)
Abstract
Ämnesord
Stäng
- Collecting sea cucumbers to supply the high value Chinese dried seafood market is a livelihood activity available to many people in the Western Indian Ocean (WIO), making it an important part of local economies. These fisheries are generally not successfully managed and tropical sea cucumber fisheries show continuing signs of decline. This thesis takes a social-ecological systems approach to guide better management of sea cucumber fisheries and aquaculture in the WIO. Papers 1 and 2 analyse the fishery situation in Zanzibar and find that in the absence of effective management institutions and income alternatives among fishers, leading to dependence, there are unsustainable expanding processes. Paper 3 compares the unmanaged fishery in Zanzibar to the highly controlled situation in Mayotte. In Mayotte, a protection effect is evident and the commercial value of stocks is significantly higher than in Zanzibar. The analysis of the situation in Mayotte demonstrates the importance of matching the fishery – management temporal scales through prepared and adaptive management to avoid processes that reinforce unsustainable expansion. Paper 4 analyses sea cucumber community spatial distribution patterns at a coastal seascape-scale in Mayotte establishing baseline patterns of habitat utilization and abundance, which can be used as reference in management. Paper 5 reviews the potential for sea cucumber aquaculture in the WIO. The review illustrates that this activity, which is currently gaining momentum, does so based on inflated promises and with significant social-ecological risks. Emphasis for improvements is, in this thesis, placed on the importance of prepared and adaptive institutions to govern and control expanding processes of the fishery. These institutional features may be achieved by increasing the level of knowledge and participation in governance and by integration of sea cucumber resources management into higher-level policy initiatives.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Sea cucumbers
- Bêche-de-mer
- Trepang
- Echinoderms
- Fisheries
- Aquaculture
- Governance
- Trade
- Seafood
- Tropical seascape
- Zanzibar
- Mayotte
- Western Indian Ocean
- marin ekotoxikologi
- Marine Ecotoxicology
Publikations- och innehållstyp
- vet (ämneskategori)
- dok (ämneskategori)
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