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Article: Spawning synchrony and aggregative behaviour of cold-water echinoderms during multi-species mass spawnings

TitleSpawning synchrony and aggregative behaviour of cold-water echinoderms during multi-species mass spawnings
Authors
KeywordsOphiopholis aculeata
ophiura robusta
mass spawning
asterias vulgaris
strongylocentrotus droebachiensis
Issue Date2008
PublisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html
Citation
Marine Ecology Progress Series, 2008, v. 361, p. 161-168 How to Cite?
AbstractAlthough many marine invertebrates reproduce by releasing gametes into the water, major spawning events have rarely been observed for cold-water invertebrates. We documented mass spawnings by the sea star Asterias vulgaris and the ophiuroid Ophiopholis aculeata on 6 July 1996 and 2 July 1998, and by these 2 species plus a second ophiuroid Ophiura robusta and the sea urchin Strongylocentrotus droebachiensis on 3 July 2003. In each year, the abrupt spawning events coincided with the first major intrusion of warm surface water into a region normally dominated by cold upwelling. The behaviours of the ophiuroids and sea stars favoured fertilization success. First, they spawned from elevated surfaces, with the central disc raised, to increase suspension and mixing of gametes. Second, many individuals pseudocopulated, which involved crawling over one another in the case of the sea star, and individuals holding their central discs together in the case of the 2 ophiuroids. Models of fertilization success need to incorporate such behaviours to better understand fertilization in the sea.
Persistent Identifierhttp://hdl.handle.net/10722/127443
ISSN
2015 Impact Factor: 2.361
2015 SCImago Journal Rankings: 1.554

 

DC FieldValueLanguage
dc.contributor.authorHimmelman, JHen_HK
dc.contributor.authorDumont, CPen_HK
dc.contributor.authorGaymer, CFen_HK
dc.contributor.authorVallieres, Cen_HK
dc.contributor.authorDrolet, Den_HK
dc.date.accessioned2010-10-31T13:25:53Z-
dc.date.available2010-10-31T13:25:53Z-
dc.date.issued2008en_HK
dc.identifier.citationMarine Ecology Progress Series, 2008, v. 361, p. 161-168en_HK
dc.identifier.issn0171-8630-
dc.identifier.urihttp://hdl.handle.net/10722/127443-
dc.description.abstractAlthough many marine invertebrates reproduce by releasing gametes into the water, major spawning events have rarely been observed for cold-water invertebrates. We documented mass spawnings by the sea star Asterias vulgaris and the ophiuroid Ophiopholis aculeata on 6 July 1996 and 2 July 1998, and by these 2 species plus a second ophiuroid Ophiura robusta and the sea urchin Strongylocentrotus droebachiensis on 3 July 2003. In each year, the abrupt spawning events coincided with the first major intrusion of warm surface water into a region normally dominated by cold upwelling. The behaviours of the ophiuroids and sea stars favoured fertilization success. First, they spawned from elevated surfaces, with the central disc raised, to increase suspension and mixing of gametes. Second, many individuals pseudocopulated, which involved crawling over one another in the case of the sea star, and individuals holding their central discs together in the case of the 2 ophiuroids. Models of fertilization success need to incorporate such behaviours to better understand fertilization in the sea.-
dc.languageengen_HK
dc.publisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html-
dc.relation.ispartofMarine Ecology Progress Seriesen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectOphiopholis aculeata-
dc.subjectophiura robusta-
dc.subjectmass spawning-
dc.subjectasterias vulgaris-
dc.subjectstrongylocentrotus droebachiensis-
dc.titleSpawning synchrony and aggregative behaviour of cold-water echinoderms during multi-species mass spawningsen_HK
dc.typeArticleen_HK
dc.identifier.emailHimmelman, JH: john.himmelman@bio.ulaval.caen_HK
dc.identifier.emailDumont, CP: cdumont@stanford.edu-
dc.identifier.authorityDumont, C=rp00692en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3354/meps07415-
dc.identifier.hkuros175306en_HK
dc.identifier.volume361en_HK
dc.identifier.spage161en_HK
dc.identifier.epage168en_HK
dc.publisher.placeGermany-

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