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Article: Littorinids control high intertidal biofilm abundance on tropical, Hong Kong rocky shores

TitleLittorinids control high intertidal biofilm abundance on tropical, Hong Kong rocky shores
Authors
KeywordsBiofilm
Hong Kong
Littorinidae
N. radiata
N. vidua
Nodilittorina trochoides
Tropical shore
Issue Date1999
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembe
Citation
Journal Of Experimental Marine Biology And Ecology, 1999, v. 233 n. 1, p. 81-94 How to Cite?
AbstractBiotic interactions in the high shore are assumed to be of little importance as compared to the role of adverse physical factors, despite the fact that these shore levels support dense numbers of grazing littorinids worldwide. In Hong Kong, three species, Nodilittorina trochoides, N. radiata and N. vidua, are abundant in the high shore and graze the epilithic biofilm, which is primarily composed of cyanobacteria (mostly Gloeocapsa and Dermocarpa species). When littorinids were excluded from the high shore (2.00-2.25 m above C.D.) using gum barriers, growth of the biofilm as measured by chlorophyll a levels was enhanced after 42 days at three different sites. Whilst the overall pattern of increasing chlorophyll a levels in exclusion areas was the same for all three sites, there was between-site variation possibly due to different littorinid densities and/or rock types. Exclusion of grazers, however, revealed that even at high shore levels on tropical shores biotic factors can control biofilm development. It is suggested that this influence acts in synergy with physical factors such as tidal inundation and frequency of wave splash and storms which can directly control littorinid grazing activity and presumably biofilm growth.
Persistent Identifierhttp://hdl.handle.net/10722/73252
ISSN
2015 Impact Factor: 1.796
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMak, YMen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2010-09-06T06:49:34Z-
dc.date.available2010-09-06T06:49:34Z-
dc.date.issued1999en_HK
dc.identifier.citationJournal Of Experimental Marine Biology And Ecology, 1999, v. 233 n. 1, p. 81-94en_HK
dc.identifier.issn0022-0981en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73252-
dc.description.abstractBiotic interactions in the high shore are assumed to be of little importance as compared to the role of adverse physical factors, despite the fact that these shore levels support dense numbers of grazing littorinids worldwide. In Hong Kong, three species, Nodilittorina trochoides, N. radiata and N. vidua, are abundant in the high shore and graze the epilithic biofilm, which is primarily composed of cyanobacteria (mostly Gloeocapsa and Dermocarpa species). When littorinids were excluded from the high shore (2.00-2.25 m above C.D.) using gum barriers, growth of the biofilm as measured by chlorophyll a levels was enhanced after 42 days at three different sites. Whilst the overall pattern of increasing chlorophyll a levels in exclusion areas was the same for all three sites, there was between-site variation possibly due to different littorinid densities and/or rock types. Exclusion of grazers, however, revealed that even at high shore levels on tropical shores biotic factors can control biofilm development. It is suggested that this influence acts in synergy with physical factors such as tidal inundation and frequency of wave splash and storms which can directly control littorinid grazing activity and presumably biofilm growth.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembeen_HK
dc.relation.ispartofJournal of Experimental Marine Biology and Ecologyen_HK
dc.subjectBiofilmen_HK
dc.subjectHong Kongen_HK
dc.subjectLittorinidaeen_HK
dc.subjectN. radiataen_HK
dc.subjectN. viduaen_HK
dc.subjectNodilittorina trochoidesen_HK
dc.subjectTropical shoreen_HK
dc.titleLittorinids control high intertidal biofilm abundance on tropical, Hong Kong rocky shoresen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-0981&volume=233&issue=1&spage=81&epage=94&date=1999&atitle=Littorinids+control+high+intertidal+biofilm+abundance+on+tropical,+Hong+Kong+rocky+shoresen_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0022-0981(98)00122-1en_HK
dc.identifier.scopuseid_2-s2.0-0033620122en_HK
dc.identifier.hkuros53781en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033620122&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume233en_HK
dc.identifier.issue1en_HK
dc.identifier.spage81en_HK
dc.identifier.epage94en_HK
dc.identifier.isiWOS:000078201700005-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridMak, YM=7006764491en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK

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