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Spatial dynamics of virus-like particles and heterotrophic bacteria within a shallow coral reef system

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dc.contributor Australian Institute Of Marine Science
dc.contributor University Of Tokyo
dc.contributor Nakano Ku
dc.contributor Flinders University South Australia
dc.contributor Univ Tokyo
dc.contributor Ocean Res Inst
dc.contributor Australian Inst Marine Sci
dc.contributor Flinders Univ S Australia
dc.contributor Australian Institute Of Marine Science (aims) en MITCHELL, JG SEYMOUR, JR PATTEN, N BOURNE, DG 2017-03-21T00:48:29Z 2013-02-28T06:41:54Z 2013-02-28T06:41:54Z 2019-05-09T01:19:03Z 2013-02-28T06:41:54Z 2017-03-21T00:48:29Z 2017-03-21T00:48:29Z 2019-05-09T01:19:03Z 2005-01-01
dc.identifier 6829 en
dc.identifier.citation Seymour JR, Pattern N, Bourne DG and Mitchell JG (2005) Spatial dynamics of virus-like particles and heterotrophic bacteria within a shallow coral reef system. Marine Ecology Progress Series. 288: 1-8. en
dc.identifier.issn 0171-8630
dc.description.abstract Variations in the abundance and community characteristics of virus-like particles (VLP) and heterotrophic bacteria within a shallow, near-shore coral reef were determined using flow cytometric analysis. Mean concentrations of 6.5 x 10(5) and 1.3 x 10(5) Ml(-1) were observed for VLP and bacterioplankton, respectively, although concentrations of both populations varied significantly (p < 0.05) between 4 distinct reef water types. Significant (p < 0.05) variability in the percentage of high DNA (HDNA) bacteria, applied here as an estimate of the proportion of active bacterial cells, and the virus:bacteria ratio (VBR) was also observed between different reef water types. Microscale profiles were taken in the 12 cm layer of water directly above the surface of coral colonies to determine the small-scale spatial relationships between coral colonies and planktonic microbial communities. Across these profiles, mean changes of 2- and 3.5-fold were observed for bacterioplankton and VLP communities, respectively, with VLP abundance positively correlated to bacteria in 75% of profiles. Bacterial and VLP abundance, percentage of HDNA bacteria, and VBR all generally exhibited increasing trends with proximity to the coral surface. VLP abundance was significantly higher (p < 0.05) in the 4 cm closest to the coral surface, and the VBR was higher at the coral surface than in any other zone. The patterns observed here indicate that VLP represent an abundant and dynamic community within coral reefs, are apparently coupled to the spatial dynamics of the bacterioplankton community, and may consequently significantly influence nutrient cycling rates and food-web structure within coral reef ecosystems.
dc.language English
dc.language en en
dc.relation.ispartof Marine Ecology Progress Series - pages: 288: 1-8 en
dc.relation.ispartof Null
dc.subject Bacterioplankton
dc.subject Ecology
dc.subject Dissolved Organic-matter
dc.subject Water Column
dc.subject Planktonic Bacteria
dc.subject Environmental Sciences & Ecology
dc.subject Marine Viruses
dc.subject Nucleic-acid Content
dc.subject Marine & Freshwater Biology
dc.subject Flow-cytometry
dc.subject Oceanography
dc.subject Disease
dc.subject Virus-like Particles
dc.subject Coral Reefs
dc.subject Phytoplankton
dc.subject Great-barrier-reef
dc.title Spatial dynamics of virus-like particles and heterotrophic bacteria within a shallow coral reef system
dc.type journal article en
dc.identifier.wos WOS:000228394400001

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