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Article: Qualitative and quantitative changes in marine biofilms as a function of temperature and salinity in summer and winter

TitleQualitative and quantitative changes in marine biofilms as a function of temperature and salinity in summer and winter
Authors
KeywordsArticle
Bacterium
Biofilm
Chlorophyll Content
Diatom
Dry Weight
Environmental Factor
Hong Kong
Marine Environment
Nonhuman
Nutritional Value
Polymerase Chain Reaction
Priority Journal
Qualitative Analysis
Quantitative Analysis
Restriction Fragment Length Polymorphism
Salinity
Seasonal Variation
Summer
Water Temperature
Winter
Issue Date2005
PublisherCambridge University Press. The Journal's web site is located at http://journals.cambridge.org/action/displayJournal?jid=BFM
Citation
Biofilms, 2005, v. 2 n. 3, p. 183-195 How to Cite?
AbstractThis study examined quantitative (dry weight, chlorophyll a content and C:N ratio) and qualitative (community compositions of bacteria and diatoms) changes in marine biofilms as a function of season (summer 2003 and winter 2004), temperature (16, 23 and 30°C) and salinity (20‰, 27‰ and 34‰) under laboratory conditions. Biofilms were allowed to develop for 20 days in the laboratory, using natural sea water collected from Port Shelter, Hong Kong. The following results were obtained: (1) biofilm dry weight was greater in summer than in winter, and greater at 34‰ than at 20‰; (2) biofilm chlorophyll a content was affected by all three factors (season, temperature and salinity), with significant interactive effects among the three factors; and (3) C:N ratio was affected by season (winter > summer) and temperature (30°C > 16°C in summer), but not by salinity. Bacterial community composition was analyzed by terminal restriction-fragment length polymorphism of polymerase chain reaction-amplified 16S rRNA genes. In summer, community compositions of both bacteria and diatoms were strongly affected by salinity. In addition, natural summer biofilms that developed at three field sites, where different salinities were found, harbored appreciably different bacterial and diatom community compositions. In contrast, in winter, temperature exerted a major influence on community compositions. The present study adds to the growing evidence that environmental factors are important determinants of both the quality and quantity of marine biofilms. © 2006 Cambridge University Press.
Persistent Identifierhttp://hdl.handle.net/10722/92673
ISSN
2009 SCImago Journal Rankings: 0.335
References

 

DC FieldValueLanguage
dc.contributor.authorChiu, JMYen_HK
dc.contributor.authorThiyagarajan, Ven_HK
dc.contributor.authorTsoi, MMYen_HK
dc.contributor.authorQian, PYen_HK
dc.date.accessioned2010-09-17T10:53:46Z-
dc.date.available2010-09-17T10:53:46Z-
dc.date.issued2005en_HK
dc.identifier.citationBiofilms, 2005, v. 2 n. 3, p. 183-195en_HK
dc.identifier.issn1479-0505en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92673-
dc.description.abstractThis study examined quantitative (dry weight, chlorophyll a content and C:N ratio) and qualitative (community compositions of bacteria and diatoms) changes in marine biofilms as a function of season (summer 2003 and winter 2004), temperature (16, 23 and 30°C) and salinity (20‰, 27‰ and 34‰) under laboratory conditions. Biofilms were allowed to develop for 20 days in the laboratory, using natural sea water collected from Port Shelter, Hong Kong. The following results were obtained: (1) biofilm dry weight was greater in summer than in winter, and greater at 34‰ than at 20‰; (2) biofilm chlorophyll a content was affected by all three factors (season, temperature and salinity), with significant interactive effects among the three factors; and (3) C:N ratio was affected by season (winter > summer) and temperature (30°C > 16°C in summer), but not by salinity. Bacterial community composition was analyzed by terminal restriction-fragment length polymorphism of polymerase chain reaction-amplified 16S rRNA genes. In summer, community compositions of both bacteria and diatoms were strongly affected by salinity. In addition, natural summer biofilms that developed at three field sites, where different salinities were found, harbored appreciably different bacterial and diatom community compositions. In contrast, in winter, temperature exerted a major influence on community compositions. The present study adds to the growing evidence that environmental factors are important determinants of both the quality and quantity of marine biofilms. © 2006 Cambridge University Press.en_HK
dc.languageengen_HK
dc.publisherCambridge University Press. The Journal's web site is located at http://journals.cambridge.org/action/displayJournal?jid=BFMen_HK
dc.relation.ispartofBiofilmsen_HK
dc.subjectArticleen_HK
dc.subjectBacteriumen_HK
dc.subjectBiofilmen_HK
dc.subjectChlorophyll Contenten_HK
dc.subjectDiatomen_HK
dc.subjectDry Weighten_HK
dc.subjectEnvironmental Factoren_HK
dc.subjectHong Kongen_HK
dc.subjectMarine Environmenten_HK
dc.subjectNonhumanen_HK
dc.subjectNutritional Valueen_HK
dc.subjectPolymerase Chain Reactionen_HK
dc.subjectPriority Journalen_HK
dc.subjectQualitative Analysisen_HK
dc.subjectQuantitative Analysisen_HK
dc.subjectRestriction Fragment Length Polymorphismen_HK
dc.subjectSalinityen_HK
dc.subjectSeasonal Variationen_HK
dc.subjectSummeren_HK
dc.subjectWater Temperatureen_HK
dc.subjectWinteren_HK
dc.titleQualitative and quantitative changes in marine biofilms as a function of temperature and salinity in summer and winteren_HK
dc.typeArticleen_HK
dc.identifier.emailChiu, JMY: jillchiu@hku.hken_HK
dc.identifier.emailThiyagarajan, V: rajan@hkucc.hku.hken_HK
dc.identifier.authorityChiu, JMY=rp01325en_HK
dc.identifier.authorityThiyagarajan, V=rp00796en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1017/S147905050500195Xen_HK
dc.identifier.scopuseid_2-s2.0-33646367194en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33646367194&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume2en_HK
dc.identifier.issue3en_HK
dc.identifier.spage183en_HK
dc.identifier.epage195en_HK
dc.identifier.eissn1479-0513-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridChiu, JMY=8833480800en_HK
dc.identifier.scopusauthoridThiyagarajan, V=6602476830en_HK
dc.identifier.scopusauthoridTsoi, MMY=36846988200en_HK
dc.identifier.scopusauthoridQian, PY=35240648600en_HK

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