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    Approaches to stock enhancement in mangrove-associated crab fisheries

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    Date
    2008
    Author
    Le Vay, Lewis
    Lebata, Ma. Junemie Hazel L. ORCID
    Walton, Mark
    Primavera, Jurgenne H. ORCID
    Quinitio, Emilia T.
    Lavilla, Celia R.
    Parado-Estepa, Fe D.
    Rodriguez, Eduard
    Ut, Vu Ngoc
    Nghia, Truong Trong
    Sorgeloos, Patrick
    Wille, Mathieu
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    Abstract
    Over the last decade, hatchery production of mud crabs has become technically and economically more feasible, enabling evaluation of the potential effectiveness of hatchery release in fisheries enhancement. The high growth rates and limited movement of released crabs means that fisheries’ yields an isolated mangrove systems with restricted recruitment can be enhanced with a few months. Thus, a release program may be an effective strategy for short-term enhancement in carefully selected specific areas. To date, results are very promising; with recovery rates up to 50% and increases in fisheries’ yield up to 46% over baseline catches. In contrast, mark-recapture studies in more open mangrove system populations shows that recruitment success and subsequent stock abundance may be largely determined by habitat availability. For these populations, restoration of lost o degraded mangrove areas has been show to be effective in promoting stock recovery through natural recruitment, with replanted mangroves supporting fisheries of equivalent economic value to that of natural mangroves, though it may take some years to reach these levels. Thus, a balanced approach to stock management could integrate both hatchery-release and habitat restoration programs, depending on local conditions and over different thin scales, with parallel-co-management to support effectiveness.
    Description
    non-SEAFDEC main author, ISI-CC covered journal.
    URI
    http://hdl.handle.net/10862/32
    Suggested Citation
    Le Vay, L., Lebata, M. J. H. L., Walton, M., Primavera, J. H., Quinitio, E. T., Lavilla, C. R., ... & Wille, M. (2008). Approaches to stock enhancement in mangrove-associated crab fisheries. Reviews in Fisheries Science, 16(1-3), 78-80.
    DOI
    10.1080/10641260701727285
    Type
    Article
    ISSN
    1064-1262
    Subject
    Crab fisheries; Fishery management; Growth rate; Habitat improvement; Mangroves; Potential resources; Recruitment; Tracking; Hatcheries; Decapoda; Scylla; Mud crabs; Replanting
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    • Journal Articles [1100]


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