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  •   SEAFDEC Institutional Repository (SIR)
  • 01 SEAFDEC Publications
  • 11 Conference Proceedings
  • SEAFDEC/TD
  • Consolidating the Strategies for Fishery Resources Enhancement in Southeast Asia. Proceedings of the Symposium on Strategy for Fisheries Resources Enhancement in the Southeast Asian Region, Pattaya, Thailand, 27-30 July 2015
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  •   SEAFDEC Institutional Repository (SIR)
  • 01 SEAFDEC Publications
  • 11 Conference Proceedings
  • SEAFDEC/TD
  • Consolidating the Strategies for Fishery Resources Enhancement in Southeast Asia. Proceedings of the Symposium on Strategy for Fisheries Resources Enhancement in the Southeast Asian Region, Pattaya, Thailand, 27-30 July 2015
  • View Item
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Aquaculture-based Enhancement and Restoration of Many-colored Abalone Resources (Haliotis diversicolor Reeve, 1846) in Bach Long VI National Marine Protected Area, Vietnam

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ChieuHD2016.pdf (351.7Kb)
Date
2016
Author
Chieu, Hoang Dinh
Phuong, Lai Duy
Duy, Do Anh
Tuan, Bui Minh
Thoa, Nguyen Kim
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244
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Abstract
Many-colored abalone (Haliotis diversicolor) is high commercial species in Vietnam. Meanwhile, these resources have been over-exploited, thus, artificial breeding was implemented to restore natural abalone resources. After sourcing the broodstock, many-colored abalones were stimulated to reproduce during October -December 2013 at the Abalone Seed Center in Bach Long Vi, Hai Phong City. The results showed that veliger larvae developed from 11h - 36h after breeding. Abalone juveniles reached to 4.5 mm (shell length) at the age of 42 days. Survival rate of abalone juveniles 1-2 mm (28 days old) was 0.92%, 3.80%, and 24.00% at larvae densities 7.5, 6.8, and 1.6 larvae/cm super(2) algae board, respectively. After 2 months (October - November), 30,000 juveniles of 4.5 mm shell length; 33,800 juveniles of 3 mm shell length; 45,500 juveniles of 2 mm shell length; and many small larvae were collected at the Bach Long Vi Abalone Seed Center. More than 6,000 juveniles of 4.5 mm shell length were released to Bach Long Vi National Marine Protected Areas for conservation in April 2014. The restoration assessment was briefly carried out in June 2015, and found that almost all individuals were found to have average shell length of 3.4 cm in Bach Long Vi National Marine Protected Area. This is an initial achievement of aquaculture and juvenile rearing to release and protect the many-colored abalone resources in Viet Nam.
URI
http://hdl.handle.net/20.500.12067/718
Suggested Citation
Chieu, H. D., Phuong, L. D., Duy, D. A., Tuan, B. M., & Thoa, N. K. (2016). Aquaculture-based enhancement and restoration of many-colored abalone resources (Haliotis diversicolor Reeve, 1846) in Bach Long Vi national marine protected area, Vietnam. In H. Kawamura, T. Iwata, Y. Theparoonrat, N. Manajit, & V. T. Sulit (Eds.), Consolidating the Strategies for Fishery Resources Enhancement in Southeast Asia. Proceedings of the Symposium on Strategy for Fisheries Resources Enhancement in the Southeast Asian Region, Pattaya, Thailand, 27-30 July 2015 (pp. 174-176). Samutprakan, Thailand: Training Department, Southeast Asian Fisheries Development Center.
Subject
stocking density ASFA; survival ASFA; induced ovulation ASFA; fishery resources ASFA; restoration ASFA; breeding ASFA; overexploitation ASFA; protected areas ASFA; commercial species ASFA; breeding stock ASFA; seed (aquaculture) ASFA; juveniles ASFA; seeds ASFA; stocking (organisms) ASFA; shellfish culture ASFA; stock assessment ASFA; larvae ASFA; seed production ASFA; length ASFA; depleted stocks ASFA; nature conservation ASFA; marine parks ASFA; marine molluscs ASFA; stocks ASFA; reproduction ASFA; Algae ASFA; South East Asia; Viet Nam; Haliotis; Haliotis diversicolor
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  • Consolidating the Strategies for Fishery Resources Enhancement in Southeast Asia. Proceedings of the Symposium on Strategy for Fisheries Resources Enhancement in the Southeast Asian Region, Pattaya, Thailand, 27-30 July 2015 [32]

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