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Article: Temporal and spatial trends in spawning aggregations of camouflage grouper, Epinephelus polyphekadion, in Pohnpei, Micronesia

TitleTemporal and spatial trends in spawning aggregations of camouflage grouper, Epinephelus polyphekadion, in Pohnpei, Micronesia
Authors
KeywordsBehavior
Coloration
Management
Reproduction
Serranidae
Issue Date2002
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0378-1909
Citation
Environmental Biology Of Fishes, 2002, v. 63 n. 1, p. 27-39 How to Cite?
AbstractThe aims of this investigation were to document the temporal and spatial dynamics of aggregated camouflage grouper, Epinephelus polyphekadion in Pohnpei, Micronesia, and to assess seasonal and daily patterns of spawning and reproductive behavior. Camouflage grouper aggregated and spawned adjacent to the Kehpara Marine Sanctuary (KMS), Pohnpei, Micronesia, during two consecutive months in 1998 and 1999. A combination of gonadosomatic indices, oocyte diameter analysis, and histological evidence confirmed that camouflage grouper spawned 1-2 days prior to full moon over an 8-9h period after dusk in each of the four study months. Males entered the site approximately 7 days prior to females and color variations were frequently observed. Significant differences were detected in mean size between the sexes. A series of management initiatives was initiated by the government in the 1980s to reduce fishing during aggregation periods, such as a March-April grouper sales ban, but these were largely ineffective. Following the 1998-1999 survey, several recommendations were made to halt aggregation fishing, including a commercial and subsistence catch and sales ban during spawning months, and the extension of the KMS to incorporate two additional grouper aggregations directly adjacent to it.
Persistent Identifierhttp://hdl.handle.net/10722/73257
ISSN
2015 Impact Factor: 1.404
2015 SCImago Journal Rankings: 0.734
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRhodes, KLen_HK
dc.contributor.authorSadovy, Yen_HK
dc.date.accessioned2010-09-06T06:49:36Z-
dc.date.available2010-09-06T06:49:36Z-
dc.date.issued2002en_HK
dc.identifier.citationEnvironmental Biology Of Fishes, 2002, v. 63 n. 1, p. 27-39en_HK
dc.identifier.issn0378-1909en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73257-
dc.description.abstractThe aims of this investigation were to document the temporal and spatial dynamics of aggregated camouflage grouper, Epinephelus polyphekadion in Pohnpei, Micronesia, and to assess seasonal and daily patterns of spawning and reproductive behavior. Camouflage grouper aggregated and spawned adjacent to the Kehpara Marine Sanctuary (KMS), Pohnpei, Micronesia, during two consecutive months in 1998 and 1999. A combination of gonadosomatic indices, oocyte diameter analysis, and histological evidence confirmed that camouflage grouper spawned 1-2 days prior to full moon over an 8-9h period after dusk in each of the four study months. Males entered the site approximately 7 days prior to females and color variations were frequently observed. Significant differences were detected in mean size between the sexes. A series of management initiatives was initiated by the government in the 1980s to reduce fishing during aggregation periods, such as a March-April grouper sales ban, but these were largely ineffective. Following the 1998-1999 survey, several recommendations were made to halt aggregation fishing, including a commercial and subsistence catch and sales ban during spawning months, and the extension of the KMS to incorporate two additional grouper aggregations directly adjacent to it.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=0378-1909en_HK
dc.relation.ispartofEnvironmental Biology of Fishesen_HK
dc.subjectBehavioren_HK
dc.subjectColorationen_HK
dc.subjectManagementen_HK
dc.subjectReproductionen_HK
dc.subjectSerranidaeen_HK
dc.titleTemporal and spatial trends in spawning aggregations of camouflage grouper, Epinephelus polyphekadion, in Pohnpei, Micronesiaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0378-1909&volume=63&spage=27&epage=39&date=2002&atitle=Temporal+and+spatial+trends+in+spawning+aggregations+of+camouflage+grouper,+Epinephelus+polyphekadion,+in+Pohnpei,+Micronesiaen_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/A:1013840621820en_HK
dc.identifier.scopuseid_2-s2.0-0036187011en_HK
dc.identifier.hkuros73058en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036187011&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume63en_HK
dc.identifier.issue1en_HK
dc.identifier.spage27en_HK
dc.identifier.epage39en_HK
dc.identifier.isiWOS:000173466700005-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridRhodes, KL=16426535600en_HK
dc.identifier.scopusauthoridSadovy, Y=6603830002en_HK

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