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Article: Do factors influencing recruitment ultimately determine the distribution and abundance of encrusting algae on seasonal tropical shores?

TitleDo factors influencing recruitment ultimately determine the distribution and abundance of encrusting algae on seasonal tropical shores?
Authors
KeywordsEncrusting algae
Herbivores
Hong Kong
Physical stress
Recruitment
Seasonal variation
Settlement
Tropical shores
Issue Date1997
PublisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html
Citation
Marine Ecology Progress Series, 1997, v. 156, p. 87-96 How to Cite?
AbstractSimilar to many low-latitude shores, encrusting algae are the dominant space-occupying organisms on moderately exposed rocky shores in Hong Kong. A multifactorial experiment assessed the roles of herbivory, season, tidal height and substratum inclination on the initial recruitment of encrusting algae to artificial surfaces. Herbivores reduced recruit densities at certain times of the year and tidal heights, but did not prevent settlement. In contrast, the relative timing of recruitment and the prevailing environmental conditions greatly affected recruit success. No species recruited at any time to the high shore, and species recruited as high as the mid shore only during cooler months. Species that recruited during the cooler months (e.g. Hapalospongidion gelatinosum and coralline crusts) could colonise the mid shore, while Ralfsia expanse, which recruited primarily during the hot season, was restricted to the low shore and subtidal. Recruitment also varied with substratum inclination; cool-season recruits were found in greater densities on horizontal surfaces, whereas hot-season recruits exhibited no difference between horizontal and vertical plates. Seasonal availability of free space may influence the life-history strategies of encrusting algae. R. expanse recruited during the hot season to the low shore, when free space was available following the annual die-back of algae. In contrast, cool-season recruits (e.g. H. gelatinosum) have less free space to colonise and as a result become established in greater densities higher on the shore, resulting in increased physical stress and mortality during the following hot season. The timing of recruitment relative to spatial and temporal variation in the physical environment, therefore, greatly affects the potential distribution of mature encrusting algal populations on Hong Kong shores.
Persistent Identifierhttp://hdl.handle.net/10722/57252
ISSN
2015 Impact Factor: 2.361
2015 SCImago Journal Rankings: 1.554
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKaehler, Sen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2010-04-12T01:30:57Z-
dc.date.available2010-04-12T01:30:57Z-
dc.date.issued1997en_HK
dc.identifier.citationMarine Ecology Progress Series, 1997, v. 156, p. 87-96en_HK
dc.identifier.issn0171-8630en_HK
dc.identifier.urihttp://hdl.handle.net/10722/57252-
dc.description.abstractSimilar to many low-latitude shores, encrusting algae are the dominant space-occupying organisms on moderately exposed rocky shores in Hong Kong. A multifactorial experiment assessed the roles of herbivory, season, tidal height and substratum inclination on the initial recruitment of encrusting algae to artificial surfaces. Herbivores reduced recruit densities at certain times of the year and tidal heights, but did not prevent settlement. In contrast, the relative timing of recruitment and the prevailing environmental conditions greatly affected recruit success. No species recruited at any time to the high shore, and species recruited as high as the mid shore only during cooler months. Species that recruited during the cooler months (e.g. Hapalospongidion gelatinosum and coralline crusts) could colonise the mid shore, while Ralfsia expanse, which recruited primarily during the hot season, was restricted to the low shore and subtidal. Recruitment also varied with substratum inclination; cool-season recruits were found in greater densities on horizontal surfaces, whereas hot-season recruits exhibited no difference between horizontal and vertical plates. Seasonal availability of free space may influence the life-history strategies of encrusting algae. R. expanse recruited during the hot season to the low shore, when free space was available following the annual die-back of algae. In contrast, cool-season recruits (e.g. H. gelatinosum) have less free space to colonise and as a result become established in greater densities higher on the shore, resulting in increased physical stress and mortality during the following hot season. The timing of recruitment relative to spatial and temporal variation in the physical environment, therefore, greatly affects the potential distribution of mature encrusting algal populations on Hong Kong shores.en_HK
dc.languageengen_HK
dc.publisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.htmlen_HK
dc.relation.ispartofMarine Ecology Progress Seriesen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsMarine Ecology - Progress Series. Copyright © Inter-Research.en_HK
dc.subjectEncrusting algaeen_HK
dc.subjectHerbivoresen_HK
dc.subjectHong Kongen_HK
dc.subjectPhysical stressen_HK
dc.subjectRecruitmenten_HK
dc.subjectSeasonal variationen_HK
dc.subjectSettlementen_HK
dc.subjectTropical shoresen_HK
dc.titleDo factors influencing recruitment ultimately determine the distribution and abundance of encrusting algae on seasonal tropical shores?en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0171-8630&volume=156&spage=87&epage=96&date=1997&atitle=Do+factors+influencing+recruitment+ultimately+determine+the+distribution+and+abundance+of+encrusting+algae+on+seasonal+tropical+shores?en_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.3354/meps156087en_HK
dc.identifier.scopuseid_2-s2.0-0030929993en_HK
dc.identifier.hkuros31065-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030929993&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume156en_HK
dc.identifier.spage87en_HK
dc.identifier.epage96en_HK
dc.identifier.isiWOS:A1997XZ98100009-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridKaehler, S=7004262046en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK

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