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Article: The humphead wrasse, Cheilinus undulatus: Synopsis of a threatened and poorly known giant coral reef fish

TitleThe humphead wrasse, Cheilinus undulatus: Synopsis of a threatened and poorly known giant coral reef fish
Authors
KeywordsHigh value
Live fish trade
Reef fish fishery
Vulnerable
Issue Date2003
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0960-3166
Citation
Reviews In Fish Biology And Fisheries, 2003, v. 13 n. 3, p. 327-364 How to Cite?
Abstract
The humphead wrasse, Cheilinus undulatus, is the largest living member of the family Labridae, with a maximum size exceeding 2 m and 190 kg. Its geographic range covers much of the Indo-Pacific. The species is not common, recorded maximum adult densities rarely exceeding 20 fish/10,000 m 2. Small individuals are typically associated with high coral cover; larger fish are found mainly on outer or deep reefs, steep slopes and passes, singly or in small groups and seagrasses. However, for reproduction the species forms small spawning aggregations of tens to more than one hundred fish. The diet of the humphead wrasse includes large invertebrates and small fishes. The species attains at least 30 years and reaches sexual maturation at about 35-50 cm total length and <5 years of age. Most small adults are female while mainly males exceed 1 m and there is evidence of female to male sex change. The humphead wrasse is of considerable cultural value in some Pacific countries and is among the most prized in the live reef food fish export trade, for which it is often taken in its juvenile size range, either directly for sale or, increasingly, for grow-out to market size. It is also marketed chilled. The species is particularly sensitive to fishing pressure. In most fished areas, density and body size have dropped substantially. It appears to be particularly heavily targeted and depleted in SE Asia and in some places faces extirpation. The humphead wrasse is often taken by night spearfishing and by cyanide, with protection typically weak or non-existent, despite regulations and by a "vulnerable" assessment on the 1996 IUCN Red List. The humphead wrasse has not been reared successfully in hatcheries. Other giant reef fish share many similar problems and detailed study of the humphead wrasse contributes to a better understanding and conservation of all such species. This review examines and evaluates published and gray literature, original unpublished research and correspondence with almost 50 knowledgeable workers. It examines the value of such sources for quickly, but adequately, assessing the conservation and management status and key data gaps in species that are little known, vulnerable, difficult and expensive to study and may require urgent management or conservation action. © 2004 Kluwer Academic Publishers.
Persistent Identifierhttp://hdl.handle.net/10722/73389
ISSN
2013 Impact Factor: 2.564
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSadovy, Yen_HK
dc.contributor.authorKulbicki, Men_HK
dc.contributor.authorLabrosse, Pen_HK
dc.contributor.authorLetourneur, Yen_HK
dc.contributor.authorLokani, Pen_HK
dc.contributor.authorDonaldson, TJen_HK
dc.date.accessioned2010-09-06T06:50:48Z-
dc.date.available2010-09-06T06:50:48Z-
dc.date.issued2003en_HK
dc.identifier.citationReviews In Fish Biology And Fisheries, 2003, v. 13 n. 3, p. 327-364en_HK
dc.identifier.issn0960-3166en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73389-
dc.description.abstractThe humphead wrasse, Cheilinus undulatus, is the largest living member of the family Labridae, with a maximum size exceeding 2 m and 190 kg. Its geographic range covers much of the Indo-Pacific. The species is not common, recorded maximum adult densities rarely exceeding 20 fish/10,000 m 2. Small individuals are typically associated with high coral cover; larger fish are found mainly on outer or deep reefs, steep slopes and passes, singly or in small groups and seagrasses. However, for reproduction the species forms small spawning aggregations of tens to more than one hundred fish. The diet of the humphead wrasse includes large invertebrates and small fishes. The species attains at least 30 years and reaches sexual maturation at about 35-50 cm total length and <5 years of age. Most small adults are female while mainly males exceed 1 m and there is evidence of female to male sex change. The humphead wrasse is of considerable cultural value in some Pacific countries and is among the most prized in the live reef food fish export trade, for which it is often taken in its juvenile size range, either directly for sale or, increasingly, for grow-out to market size. It is also marketed chilled. The species is particularly sensitive to fishing pressure. In most fished areas, density and body size have dropped substantially. It appears to be particularly heavily targeted and depleted in SE Asia and in some places faces extirpation. The humphead wrasse is often taken by night spearfishing and by cyanide, with protection typically weak or non-existent, despite regulations and by a "vulnerable" assessment on the 1996 IUCN Red List. The humphead wrasse has not been reared successfully in hatcheries. Other giant reef fish share many similar problems and detailed study of the humphead wrasse contributes to a better understanding and conservation of all such species. This review examines and evaluates published and gray literature, original unpublished research and correspondence with almost 50 knowledgeable workers. It examines the value of such sources for quickly, but adequately, assessing the conservation and management status and key data gaps in species that are little known, vulnerable, difficult and expensive to study and may require urgent management or conservation action. © 2004 Kluwer Academic Publishers.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0960-3166en_HK
dc.relation.ispartofReviews in Fish Biology and Fisheriesen_HK
dc.subjectHigh valueen_HK
dc.subjectLive fish tradeen_HK
dc.subjectReef fish fisheryen_HK
dc.subjectVulnerableen_HK
dc.titleThe humphead wrasse, Cheilinus undulatus: Synopsis of a threatened and poorly known giant coral reef fishen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0960-3166&volume=13&issue=3&spage=327&epage=364&date=2003&atitle=The+humphead+wrasse,+Cheilinus+undulatus:+synopsis+of+a+threatened+and+poorly+known+giant+coral+reef+fishen_HK
dc.identifier.emailSadovy, Y: yjsadovy@hkucc.hku.hken_HK
dc.identifier.authoritySadovy, Y=rp00773en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1023/B:RFBF.0000033122.90679.97en_HK
dc.identifier.scopuseid_2-s2.0-4344645867en_HK
dc.identifier.hkuros86434en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-4344645867&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume13en_HK
dc.identifier.issue3en_HK
dc.identifier.spage327en_HK
dc.identifier.epage364en_HK
dc.identifier.isiWOS:000222265100006-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridSadovy, Y=6603830002en_HK
dc.identifier.scopusauthoridKulbicki, M=6701694837en_HK
dc.identifier.scopusauthoridLabrosse, P=6603069417en_HK
dc.identifier.scopusauthoridLetourneur, Y=7003415906en_HK
dc.identifier.scopusauthoridLokani, P=6505531045en_HK
dc.identifier.scopusauthoridDonaldson, TJ=7005955541en_HK

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