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Article: Reproductive biology of a diandric protogynous hermaphrodite, the serranid Epinephelus andersoni

TitleReproductive biology of a diandric protogynous hermaphrodite, the serranid Epinephelus andersoni
Authors
Issue Date2002
PublisherCSIRO Publishing. The Journal's web site is located at http://www.publish.csiro.au/journals/mfr/
Citation
Marine And Freshwater Research, 2002, v. 53 n. 2, p. 147-158 How to Cite?
AbstractEpinephelus andersoni is a serranid endemic to south-eastern Africa. An investigation of the reproductive biology of this species from two areas along the east coast of South Africa revealed that E. andersoni exhibits several features that differ from the hermaphroditism found in most other epinepheline serranids. Among sexually mature fish, there is a complete overlap of male and female sizes and significantly more males than females. Males can develop directly from the juvenile phase as well as by sex change from functional females, although testicular morphology does not vary according to developmental pathway. Hence, the species is classified as a diandric protogynous hermaphrodite, a sexual pattern hitherto unconfirmed for the genus Epinephelus. The morphology of the gonads also differs from that of congeners, with male and female tissues being spatially distinct. A substantial part of the mature-sized component is not reproductively active, possibly because of edge-of-range effects and/or because not all individuals spawn each year. Reproduction occurs between November and January, and female total length at 50% maturity is 492 mm.
Persistent Identifierhttp://hdl.handle.net/10722/73353
ISSN
2015 Impact Factor: 1.583
2015 SCImago Journal Rankings: 0.821
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFennessy, STen_HK
dc.contributor.authorSadovy, Yen_HK
dc.date.accessioned2010-09-06T06:50:29Z-
dc.date.available2010-09-06T06:50:29Z-
dc.date.issued2002en_HK
dc.identifier.citationMarine And Freshwater Research, 2002, v. 53 n. 2, p. 147-158en_HK
dc.identifier.issn1323-1650en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73353-
dc.description.abstractEpinephelus andersoni is a serranid endemic to south-eastern Africa. An investigation of the reproductive biology of this species from two areas along the east coast of South Africa revealed that E. andersoni exhibits several features that differ from the hermaphroditism found in most other epinepheline serranids. Among sexually mature fish, there is a complete overlap of male and female sizes and significantly more males than females. Males can develop directly from the juvenile phase as well as by sex change from functional females, although testicular morphology does not vary according to developmental pathway. Hence, the species is classified as a diandric protogynous hermaphrodite, a sexual pattern hitherto unconfirmed for the genus Epinephelus. The morphology of the gonads also differs from that of congeners, with male and female tissues being spatially distinct. A substantial part of the mature-sized component is not reproductively active, possibly because of edge-of-range effects and/or because not all individuals spawn each year. Reproduction occurs between November and January, and female total length at 50% maturity is 492 mm.en_HK
dc.languageengen_HK
dc.publisherCSIRO Publishing. The Journal's web site is located at http://www.publish.csiro.au/journals/mfr/en_HK
dc.relation.ispartofMarine and Freshwater Researchen_HK
dc.titleReproductive biology of a diandric protogynous hermaphrodite, the serranid Epinephelus andersonien_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1323-1650&volume=53&spage=147&epage=158&date=2002&atitle=Reproductive+biology+of+a+diandric+protogynous+hermaphrodite,+the+serranid+Epinephelus+andersonien_HK
dc.identifier.emailSadovy, Y: yjsadovy@hkucc.hku.hken_HK
dc.identifier.authoritySadovy, Y=rp00773en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1071/MF01189en_HK
dc.identifier.scopuseid_2-s2.0-0036240525en_HK
dc.identifier.hkuros73065en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036240525&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume53en_HK
dc.identifier.issue2en_HK
dc.identifier.spage147en_HK
dc.identifier.epage158en_HK
dc.identifier.isiWOS:000174841500008-
dc.publisher.placeAustraliaen_HK
dc.identifier.scopusauthoridFennessy, ST=6701715977en_HK
dc.identifier.scopusauthoridSadovy, Y=6603830002en_HK

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