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Article: Gonadal development in a giant threatened reef fish, the humphead wrasse Cheilinus undulatus, and its relationship to international trade

TitleGonadal development in a giant threatened reef fish, the humphead wrasse Cheilinus undulatus, and its relationship to international trade
Authors
KeywordsCITES Appendix II
Hermaphroditism
Juvenile fishery
Labridae
Live reef food fish trade
Management
Issue Date2010
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JFB
Citation
Journal Of Fish Biology, 2010, v. 77 n. 3, p. 706-718 How to Cite?
AbstractAn opportunity arose to obtain humphead wrasse Cheilinus undulatus specimens between 2006 and 2009 from Indonesia, the major source and exporting country of this species, making study on its early gonad development possible for the first time. Protogynous hermaphroditism, previously proposed for this species, was confirmed in this study. Based on histological examination of 178 specimens, mainly <500 mm total length (L T) and ranging from 208 to 1290 mm L T (119·1 g to 43·0 kg whole body mass), the minimum body sizes for female and male sexual maturation were determined to be 650 and 845 mm L T, respectively. Primary male development through juvenile sexual differentiation was not detected. A unique blind pouch, with a possible sperm storage function and associated with the testis, was reported for the first time in the Labridae. In Hong Kong retail markets, the global trading centre for this valuable species, live C. undulatus on sale for food were dominated by body sizes <500 mm L T between 1995 and 2009, reflecting an international trade largely focused on juveniles. In consideration of these findings, and given the threatened status of this species, management for C. undulatus capture and trade nationally and internationally are discussed with recommendations for ensuring sufficient spawning biomass in exploited populations and for sustainable trade. © 2010 The Authors. Journal compilation © 2010 The Fisheries Society of the British Isles.
Persistent Identifierhttp://hdl.handle.net/10722/127455
ISSN
2015 Impact Factor: 1.246
2015 SCImago Journal Rankings: 0.952
ISI Accession Number ID
Funding AgencyGrant Number
Division of Ecology & Biodiversity, HKU
Funding Information:

We thank The Research Centre for Oceanography, Indonesia Institute of Sciences (Indonesia), H. Purnomo and his company Pulau Mas, and the Agriculture, Fisheries and Conservation Department (Hong Kong SAR) for providing valuable C. undulatus specimens, R. Wong for histology and market survey assistance, and postgraduates from our laboratory for specimen measurement and dissection assistance. This study was supported by the Division of Ecology & Biodiversity, HKU.

References

 

DC FieldValueLanguage
dc.contributor.authorde Mitcheson, YSen_HK
dc.contributor.authorLiu, Men_HK
dc.contributor.authorSuharti, Sen_HK
dc.date.accessioned2010-10-31T13:26:32Z-
dc.date.available2010-10-31T13:26:32Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Fish Biology, 2010, v. 77 n. 3, p. 706-718en_HK
dc.identifier.issn0022-1112en_HK
dc.identifier.urihttp://hdl.handle.net/10722/127455-
dc.description.abstractAn opportunity arose to obtain humphead wrasse Cheilinus undulatus specimens between 2006 and 2009 from Indonesia, the major source and exporting country of this species, making study on its early gonad development possible for the first time. Protogynous hermaphroditism, previously proposed for this species, was confirmed in this study. Based on histological examination of 178 specimens, mainly <500 mm total length (L T) and ranging from 208 to 1290 mm L T (119·1 g to 43·0 kg whole body mass), the minimum body sizes for female and male sexual maturation were determined to be 650 and 845 mm L T, respectively. Primary male development through juvenile sexual differentiation was not detected. A unique blind pouch, with a possible sperm storage function and associated with the testis, was reported for the first time in the Labridae. In Hong Kong retail markets, the global trading centre for this valuable species, live C. undulatus on sale for food were dominated by body sizes <500 mm L T between 1995 and 2009, reflecting an international trade largely focused on juveniles. In consideration of these findings, and given the threatened status of this species, management for C. undulatus capture and trade nationally and internationally are discussed with recommendations for ensuring sufficient spawning biomass in exploited populations and for sustainable trade. © 2010 The Authors. Journal compilation © 2010 The Fisheries Society of the British Isles.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JFBen_HK
dc.relation.ispartofJournal of Fish Biologyen_HK
dc.rightsThe definitive version is available at www.blackwell-synergy.com-
dc.subjectCITES Appendix IIen_HK
dc.subjectHermaphroditismen_HK
dc.subjectJuvenile fisheryen_HK
dc.subjectLabridaeen_HK
dc.subjectLive reef food fish tradeen_HK
dc.subjectManagementen_HK
dc.subject.meshAnimals-
dc.subject.meshEndangered Species-
dc.subject.meshFisheries-
dc.subject.meshGonads - cytology - growth and development-
dc.subject.meshPerciformes - growth and development - physiology-
dc.titleGonadal development in a giant threatened reef fish, the humphead wrasse Cheilinus undulatus, and its relationship to international tradeen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-1112&volume=77&issue=3&spage=706&epage=718&date=2010&atitle=Gonadal+development+in+a+giant+threatened+reef+fish,+the+humphead+wrasse+Cheilinus+undulatus,+and+its+relationship+to+international+tradeen_HK
dc.identifier.emailde Mitcheson, YS: yjsadovy@hkucc.hku.hken_HK
dc.identifier.authorityde Mitcheson, YS=rp00773en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1095-8649.2010.02714.xen_HK
dc.identifier.pmid20701649-
dc.identifier.scopuseid_2-s2.0-77955237952en_HK
dc.identifier.hkuros178680en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955237952&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume77en_HK
dc.identifier.issue3en_HK
dc.identifier.spage706en_HK
dc.identifier.epage718en_HK
dc.identifier.isiWOS:000280643900017-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridde Mitcheson, YS=6603830002en_HK
dc.identifier.scopusauthoridLiu, M=55458074100en_HK
dc.identifier.scopusauthoridSuharti, S=8966447200en_HK
dc.identifier.citeulike7601689-

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