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Stock enhancement of threatened species in Southeast Asia

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Date
2008
Author
Okuzawa, Koichi
Maliao, Ronald J.
Quinitio, Emilia T.
Buen-Ursua, Shelah Mae A.
Lebata, Ma. Junemie Hazel L.
Gallardo, Wenresti G.
Garcia, LM
Primavera, Jurgenne
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Abstract
Natural populations of global inshore fisheries are coming under heavy pressure, primarily due to overexploitation and habitat degradation. Stock enhancement of hatchery-reared seeds is perceived as an alternative strategy to enhance the regeneration process. The Aquaculture Department of the Southeast Asian Fisheries Development Center in the Philippines has been implementing activities related to stock enhancement of donkey’s ear abalone (Haliotis asinina), mud crabs (Scylla spp.), giant clam (Tridacna gigas), seahorses (Hippocampus spp.). Seed production techniques for abalone including a diet tagging method were established and juvenile abalone were released and monitored in a marine protected area. Mud crabs conditioned before release had higher recapture rates compared to the non-conditioned crabs, which can be translated to higher survivorship. Giant clams stocked at 8-10 cm shell length have higher survival 4 mo after stocking (90%), with initial mortalities occurring within the first few days due to transportation stress. Seed production trials for seahorse have begun.
Description
cc-covered journal, non-SEAFDEC first author
URI
http://hdl.handle.net/10862/45
Suggested Citation
Okuzawa, K., Maliao, R. J., Quinitio, E. T., Buen-Ursua, S. M. A., Lebata, M. J. H. L., Gallardo, W. G., ... & Primavera, J. (2008). Stock enhancement of threatened species in Southeast Asia. Reviews in Fisheries Science, 16(1-3), 394-402.
DOI
10.1080/10641260701678496
Subject
bottom culture ASFA; fisheries development ASFA; marine molluscs ASFA; mollusc culture ASFA; mortality causes ASFA; nature conservation ASFA; seed production ASFA; shellfish culture ASFA; stocking (organisms) ASFA; Decapoda AGROVOC; Haliotis AGROVOC; Haliotis asinina AGROVOC; Hippocampus (genus) AGROVOC; Scylla AGROVOC; Tridacna gigas AGROVOC; Philippines AGROVOC; South East Asia AGROVOC
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  • AQD Journal Articles [1175]

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