Heterogeneity in bacterioplankton abundance from 4.5 millimetre resolution sampling

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dc.contributor.author Seymour, JR
dc.contributor.author Mitchell, JG
dc.contributor.author Pearson, L
dc.contributor.author Waters, RL
dc.date.accessioned 2010-05-28T09:45:30Z
dc.date.issued 2000-09-08
dc.identifier.citation Aquatic Microbial Ecology, 2000, 22 (2), pp. 143 - 153
dc.identifier.issn 0948-3055
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/8797
dc.description.abstract A suite of pneumatically operated sampling devices was employed to investigate distributional patterns of marine bacteria at the millimetre scale. Spatial heterogeneity in bacterial abundance, or patchiness, was expressed as a coefficient of variation, and ranged from 5.5 to 75 %. Discrete regions of enhanced bacterial abundance, as well as clear gradients in abundance across entire sample arrays were observed, with changes in bacterial abundance of up to 16-fold observed across a distance of 32 mm. The role of turbulence in influencing bacterial distribution patterns was examined in a series of laboratory experiments. Levels of heterogeneity were found to be up to 6.5 times higher in stirred than unstirred water samples under laboratory conditions. The gradients in bacterial abundance observed here suggest that small-scale processes operate within the marine microenvironment to create and maintain spatial structure in the bacterioplankton community. We suggest that previously hypothesised nanoscale 'hot spots' and microzones exist only as maxima within a continuously variable distribution of bacteria within the marine environment.
dc.language eng
dc.title Heterogeneity in bacterioplankton abundance from 4.5 millimetre resolution sampling
dc.type Journal Article
dc.parent Aquatic Microbial Ecology
dc.journal.volume 2
dc.journal.volume 22
dc.journal.number NA en_US
dc.publocation Oldendorf, Germany en_US
dc.identifier.startpage 143 en_US
dc.identifier.endpage 153 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060204 Freshwater Ecology
dc.personcode 108948
dc.percentage 100 en_US
dc.classification.name Freshwater Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Marine bacteria
dc.description.keywords Patchiness
dc.description.keywords Small-scale
dc.description.keywords Spatial heterogeneity
dc.description.keywords Turbulence
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
pubs.consider-herdc false
utslib.collection.history Closed (ID: 3)

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