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Article: Effect of ultraviolet radiation on biofilms and subsequent larval settlement of Hydroides elegans

TitleEffect of ultraviolet radiation on biofilms and subsequent larval settlement of Hydroides elegans
Authors
KeywordsBiofilms
Hydroides Elegans
Larval Settlement
Ultraviolet Radiation
Issue Date2005
PublisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html
Citation
Marine Ecology Progress Series, 2005, v. 304, p. 155-166 How to Cite?
AbstractThis study investigated the effect of UV-A and B (UVR) on larval settlement of the polychaete Hydroides elegans through their influence on biofilms. Multispecies biofilms were treated with 3 doses of UVR (10, 30 and 80 KJ m -2) at 2 environmentally realistic irradiance levels (4 and 2 W m-2) in the laboratory, and their ability to induce the settlement of H. elegans larvae was then examined in both laboratory and field conditions. For the field experiment, only 10 and 80 KJ m-2 doses under 4 W m-2 were used. In addition, this study evaluated the effects of UVR on monospecies bacterial biofilms and then their ability to induce larval settlement in the laboratory. Results demonstrated that the ability of multispecies biofilms to trigger larval settlement could be compromised as a result of enhanced UVR exposure. Although larval settlement on multispecies biofilms treated with the lowest UV dose (at both irradiance levels) was at the same level as that of the control, the exposure of biofilms to the highest dose significantly reduced their larval settlement triggering ability. Furthermore, UVR treatments decreased the percentage of metabolically active bacterial cells in monospecies biofilms; the effect increased with increasing UV dose. Larval settlement response to monospecies biofilms decreased with increasing UV dose, suggesting that the bacterial metabolic activity in biofilms is essential for the biofilms to have an inductive effect on larval settlement. This study suggests that enhanced UVR, which might occur due to ozone depletion, may have a significant effect on the larval settlement of H. elegans by affecting a biofilm's inductive cues. © Inter-Research 2005.
Persistent Identifierhttp://hdl.handle.net/10722/178923
ISSN
2015 Impact Factor: 2.361
2015 SCImago Journal Rankings: 1.554
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHung, OSen_US
dc.contributor.authorThiyagarajan, Ven_US
dc.contributor.authorWu, RSSen_US
dc.contributor.authorQian, PYen_US
dc.date.accessioned2012-12-19T09:50:46Z-
dc.date.available2012-12-19T09:50:46Z-
dc.date.issued2005en_US
dc.identifier.citationMarine Ecology Progress Series, 2005, v. 304, p. 155-166en_US
dc.identifier.issn0171-8630en_US
dc.identifier.urihttp://hdl.handle.net/10722/178923-
dc.description.abstractThis study investigated the effect of UV-A and B (UVR) on larval settlement of the polychaete Hydroides elegans through their influence on biofilms. Multispecies biofilms were treated with 3 doses of UVR (10, 30 and 80 KJ m -2) at 2 environmentally realistic irradiance levels (4 and 2 W m-2) in the laboratory, and their ability to induce the settlement of H. elegans larvae was then examined in both laboratory and field conditions. For the field experiment, only 10 and 80 KJ m-2 doses under 4 W m-2 were used. In addition, this study evaluated the effects of UVR on monospecies bacterial biofilms and then their ability to induce larval settlement in the laboratory. Results demonstrated that the ability of multispecies biofilms to trigger larval settlement could be compromised as a result of enhanced UVR exposure. Although larval settlement on multispecies biofilms treated with the lowest UV dose (at both irradiance levels) was at the same level as that of the control, the exposure of biofilms to the highest dose significantly reduced their larval settlement triggering ability. Furthermore, UVR treatments decreased the percentage of metabolically active bacterial cells in monospecies biofilms; the effect increased with increasing UV dose. Larval settlement response to monospecies biofilms decreased with increasing UV dose, suggesting that the bacterial metabolic activity in biofilms is essential for the biofilms to have an inductive effect on larval settlement. This study suggests that enhanced UVR, which might occur due to ozone depletion, may have a significant effect on the larval settlement of H. elegans by affecting a biofilm's inductive cues. © Inter-Research 2005.en_US
dc.languageengen_US
dc.publisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.htmlen_US
dc.relation.ispartofMarine Ecology Progress Seriesen_US
dc.subjectBiofilmsen_US
dc.subjectHydroides Elegansen_US
dc.subjectLarval Settlementen_US
dc.subjectUltraviolet Radiationen_US
dc.titleEffect of ultraviolet radiation on biofilms and subsequent larval settlement of Hydroides elegansen_US
dc.typeArticleen_US
dc.identifier.emailThiyagarajan, V: rajan@hkucc.hku.hken_US
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_US
dc.identifier.authorityThiyagarajan, V=rp00796en_US
dc.identifier.authorityWu, RSS=rp01398en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.3354/meps304155en_US
dc.identifier.scopuseid_2-s2.0-30744463299en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-30744463299&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume304en_US
dc.identifier.spage155en_US
dc.identifier.epage166en_US
dc.identifier.isiWOS:000234750100014-
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridHung, OS=8652904500en_US
dc.identifier.scopusauthoridThiyagarajan, V=6602476830en_US
dc.identifier.scopusauthoridWu, RSS=7402945079en_US
dc.identifier.scopusauthoridQian, PY=35240648600en_US

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