Stock enhancement of threatened species in Southeast Asia

Koichi Okuzawa, Ronald J. Maliao, Emilia T. Quinitio, S. M A Buen-Ursua, Ma J H L Lebata, Wenresti G. Gallardo, L. M B Garcia, Jurgenne H. Primavera

Research output: Contribution to journalArticle

10 Citations (Scopus)

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), and 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 high 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.

Original languageEnglish
Pages (from-to)394-402
Number of pages9
JournalReviews in Fisheries Science
Volume16
Issue number1-3
DOIs
Publication statusPublished - Jan 2008

Fingerprint

stock enhancement
abalone
threatened species
seed productivity
South East Asia
Syngnathidae
crab
crabs
seed production
clams
mud
Tridacna gigas
Scylla
Haliotis asinina
fisheries
shell (molluscs)
tagging
asses
resource development
survivorship

Keywords

  • Abalone
  • Giant clam
  • Mud crab
  • Restocking
  • SEAFDEC-AQD
  • Seahorse

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography

Cite this

Okuzawa, K., Maliao, R. J., Quinitio, E. T., Buen-Ursua, S. M. A., Lebata, M. J. H. L., Gallardo, W. G., ... Primavera, J. H. (2008). Stock enhancement of threatened species in Southeast Asia. Reviews in Fisheries Science, 16(1-3), 394-402. https://doi.org/10.1080/10641260701678496

Stock enhancement of threatened species in Southeast Asia. / Okuzawa, Koichi; Maliao, Ronald J.; Quinitio, Emilia T.; Buen-Ursua, S. M A; Lebata, Ma J H L; Gallardo, Wenresti G.; Garcia, L. M B; Primavera, Jurgenne H.

In: Reviews in Fisheries Science, Vol. 16, No. 1-3, 01.2008, p. 394-402.

Research output: Contribution to journalArticle

Okuzawa, K, Maliao, RJ, Quinitio, ET, Buen-Ursua, SMA, Lebata, MJHL, Gallardo, WG, Garcia, LMB & Primavera, JH 2008, 'Stock enhancement of threatened species in Southeast Asia', Reviews in Fisheries Science, vol. 16, no. 1-3, pp. 394-402. https://doi.org/10.1080/10641260701678496
Okuzawa K, Maliao RJ, Quinitio ET, Buen-Ursua SMA, Lebata MJHL, Gallardo WG et al. Stock enhancement of threatened species in Southeast Asia. Reviews in Fisheries Science. 2008 Jan;16(1-3):394-402. https://doi.org/10.1080/10641260701678496
Okuzawa, Koichi ; Maliao, Ronald J. ; Quinitio, Emilia T. ; Buen-Ursua, S. M A ; Lebata, Ma J H L ; Gallardo, Wenresti G. ; Garcia, L. M B ; Primavera, Jurgenne H. / Stock enhancement of threatened species in Southeast Asia. In: Reviews in Fisheries Science. 2008 ; Vol. 16, No. 1-3. pp. 394-402.
@article{0737d7bd84344c2bb65d79a9ffd47b09,
title = "Stock enhancement of threatened species in Southeast Asia",
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), and 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 high 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.",
keywords = "Abalone, Giant clam, Mud crab, Restocking, SEAFDEC-AQD, Seahorse",
author = "Koichi Okuzawa and Maliao, {Ronald J.} and Quinitio, {Emilia T.} and Buen-Ursua, {S. M A} and Lebata, {Ma J H L} and Gallardo, {Wenresti G.} and Garcia, {L. M B} and Primavera, {Jurgenne H.}",
year = "2008",
month = "1",
doi = "10.1080/10641260701678496",
language = "English",
volume = "16",
pages = "394--402",
journal = "Reviews in Fisheries Science and Aquaculture",
issn = "2330-8249",
publisher = "Taylor and Francis Ltd.",
number = "1-3",

}

TY - JOUR

T1 - Stock enhancement of threatened species in Southeast Asia

AU - Okuzawa, Koichi

AU - Maliao, Ronald J.

AU - Quinitio, Emilia T.

AU - Buen-Ursua, S. M A

AU - Lebata, Ma J H L

AU - Gallardo, Wenresti G.

AU - Garcia, L. M B

AU - Primavera, Jurgenne H.

PY - 2008/1

Y1 - 2008/1

N2 - 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), and 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 high 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.

AB - 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), and 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 high 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.

KW - Abalone

KW - Giant clam

KW - Mud crab

KW - Restocking

KW - SEAFDEC-AQD

KW - Seahorse

UR - http://www.scopus.com/inward/record.url?scp=40249084926&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40249084926&partnerID=8YFLogxK

U2 - 10.1080/10641260701678496

DO - 10.1080/10641260701678496

M3 - Article

VL - 16

SP - 394

EP - 402

JO - Reviews in Fisheries Science and Aquaculture

JF - Reviews in Fisheries Science and Aquaculture

SN - 2330-8249

IS - 1-3

ER -