Effects of solar PAR and UV radiation on tropical biofouling communities

Handle URI:
http://hdl.handle.net/10754/554392
Title:
Effects of solar PAR and UV radiation on tropical biofouling communities
Authors:
Dobretsov, SV; Gosselin, L; Qian, P
Abstract:
We investigated the effect of solar ultraviolet radiation (UVR) and photosynthetically active radiation (PAR) on the development of tropical micro- and macrofouling communities for 30 d. The experimental design involved 3 treatments: full spectrum (PAR+UVR), PAR only, and minimal light (reduced PAR and UVR). Terminal restriction fragment length polymorphism analysis demonstrated that different light conditions resulted in the formation of highly different microbial communities. The lowest densities of bacteria were found under the full spectrum treatment, while the lowest densities of diatoms were found in the minimal light treatment. Macrofouling communities consisted of 13 species and differed among light treatments. In the presence of UVR, communities had low species diversity, evenness, and richness, while in minimal light and PAR treatments, communities had high species diversity, evenness, and richness. Similarity percentage (SIMPER) analysis revealed that the tubeworm Hydroides elegans, the alga Ulva (Enteromorpha) sp., and the bivalve Perna viridis were the species responsible for most of the dissimilarities in macrofouling communities among treatments. While densities of H. elegans were similar in the PAR and minimal light treatments, this polychaete had higher growth rates under minimal light conditions. We conclude that UVR and PAR directly control the development of shallow micro- and macrofouling communities by inhibiting the recruitment and growth of sensitive species and promoting the growth of resistant species, but also that these forms of solar radiation influence the surface cues available to competent larvae by altering the development of the microbial community.
Citation:
Effects of solar PAR and UV radiation on tropical biofouling communities 2010, 402:31 Marine Ecology Progress Series
Publisher:
Inter-Research Science Center
Journal:
Marine Ecology Progress Series
KAUST Grant Number:
SA-C0040; UKC0016
Issue Date:
8-Mar-2010
DOI:
10.3354/meps08455
Type:
Article
ISSN:
0171-8630; 1616-1599
Sponsors:
We thank M. Tsoi and Y. K. Tam of the Coastal Marine Laboratory for their help in the molecular bacterial community fingerprinting. This study was supported by an RGC grant (662207) and an award (SA-C0040/UKC0016) from King Abdullah University of Science and Technology (KAUST) to P.Y.Q., and partially supported by an SQU grant (IG/AGR/FISH/09/03) to S.V.D. and an NSERC grant to L.G.
Additional Links:
http://www.int-res.com/abstracts/meps/v402/p31-43/
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorDobretsov, SVen
dc.contributor.authorGosselin, Len
dc.contributor.authorQian, Pen
dc.date.accessioned2015-05-21T07:31:42Zen
dc.date.available2015-05-21T07:31:42Zen
dc.date.issued2010-03-08en
dc.identifier.citationEffects of solar PAR and UV radiation on tropical biofouling communities 2010, 402:31 Marine Ecology Progress Seriesen
dc.identifier.issn0171-8630en
dc.identifier.issn1616-1599en
dc.identifier.doi10.3354/meps08455en
dc.identifier.urihttp://hdl.handle.net/10754/554392en
dc.description.abstractWe investigated the effect of solar ultraviolet radiation (UVR) and photosynthetically active radiation (PAR) on the development of tropical micro- and macrofouling communities for 30 d. The experimental design involved 3 treatments: full spectrum (PAR+UVR), PAR only, and minimal light (reduced PAR and UVR). Terminal restriction fragment length polymorphism analysis demonstrated that different light conditions resulted in the formation of highly different microbial communities. The lowest densities of bacteria were found under the full spectrum treatment, while the lowest densities of diatoms were found in the minimal light treatment. Macrofouling communities consisted of 13 species and differed among light treatments. In the presence of UVR, communities had low species diversity, evenness, and richness, while in minimal light and PAR treatments, communities had high species diversity, evenness, and richness. Similarity percentage (SIMPER) analysis revealed that the tubeworm Hydroides elegans, the alga Ulva (Enteromorpha) sp., and the bivalve Perna viridis were the species responsible for most of the dissimilarities in macrofouling communities among treatments. While densities of H. elegans were similar in the PAR and minimal light treatments, this polychaete had higher growth rates under minimal light conditions. We conclude that UVR and PAR directly control the development of shallow micro- and macrofouling communities by inhibiting the recruitment and growth of sensitive species and promoting the growth of resistant species, but also that these forms of solar radiation influence the surface cues available to competent larvae by altering the development of the microbial community.en
dc.description.sponsorshipWe thank M. Tsoi and Y. K. Tam of the Coastal Marine Laboratory for their help in the molecular bacterial community fingerprinting. This study was supported by an RGC grant (662207) and an award (SA-C0040/UKC0016) from King Abdullah University of Science and Technology (KAUST) to P.Y.Q., and partially supported by an SQU grant (IG/AGR/FISH/09/03) to S.V.D. and an NSERC grant to L.G.en
dc.publisherInter-Research Science Centeren
dc.relation.urlhttp://www.int-res.com/abstracts/meps/v402/p31-43/en
dc.rightsArchived with thanks to Marine Ecology Progress Series © 2010 Inter-Researchen
dc.subjectUltraviolet radiationen
dc.subjectVisible lighten
dc.subjectMicrobial communitiesen
dc.subjectBiofilmen
dc.subjectBiofoulingen
dc.subjectCommunity structureen
dc.subjectLarval recruitmenten
dc.subjectJuvenile growthen
dc.subjectSouth China Seaen
dc.subjectPhotosynthetically active radiationen
dc.titleEffects of solar PAR and UV radiation on tropical biofouling communitiesen
dc.typeArticleen
dc.identifier.journalMarine Ecology Progress Seriesen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionMarine Science and Fisheries Department, College of Agricultural and Marine Sciences, Sultan Qaboos University, Sultanate of Omanen
dc.contributor.institutionDepartment of Biological Sciences, Thompson Rivers University, Kamloops, British Columbia, Canadaen
dc.contributor.institutionDepartment of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SARen
kaust.authorQian, Pen
kaust.grant.numberSA-C0040en
kaust.grant.numberUKC0016en
kaust.grant.programKAUST Global Partnership Programen
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