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Comparison and validation of sampling strategies for the molecular microbial analysis of surface microlayers
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Cunliffe, Michael, Harrison, Emma, Salter, Matthew, Schaefer, Hendrik, Upstill-Goddard, Robert C. and Murrell, J. C. (J. Colin) (2009) Comparison and validation of sampling strategies for the molecular microbial analysis of surface microlayers. Aquatic Microbial Ecology, Vol.57 (No.1). pp. 69-77. doi:10.3354/ame01330
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Official URL: http://dx.doi.org/10.3354/ame01330
Abstract
A range of sampling methods are available to sample the sea surface microlayer, including mesh screens (MS), glass plates (GP), hydrophobic (PTFE, polytetrafluoroethylene) and hydrophilic (PC, polycarbonate) membranes. We compared bacterial community structures in surface microlayer samples and in subsurface water (0.4 m) collected using the above sampling methods. Samples were collected from the Tyne Estuary and analysed using DGGE of bacterial 16S rRNA genes. Samples collected using GP and MS were similar to subsurface water samples. Samples collected using PTFE and PC showed distinct differences compared to samples collected using GP and MS and subsurface samples. Membranes sample within the proposed depth range of the actual sea surface microlayer while GP and MS collect deeper samples which therefore also contain subsurface water. There is therefore clear evidence that GP and MS samplers under-represent the surface microlayer. Bacterial and archaeal communities were compared in sea surface microlayer and subsurface samples collected with PC from 3 sites in the Pacific Ocean. Samples were analysed using DGGE of bacterial and archaeal 16S rRNA genes. Bacterial communities in samples collected from the sea surface microlayer at 2 sites on either side of Oahu Island were more similar to each other than to their cognate subsurface samples. Archaeal communities did not show a distinct surface microlayer effect. Data presented here clearly indicate that Bacteria respond significantly to this sea surface microlayer environment and further support the use of PC in sampling surface microlayers.
| Item Type: | Journal Article | ||||
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| Subjects: | Q Science > QH Natural history > QH301 Biology Q Science > QR Microbiology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Biological Sciences ( -2010) Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Warwick HRI (2004-2010) |
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| Journal or Publication Title: | Aquatic Microbial Ecology | ||||
| Publisher: | Inter-Research | ||||
| ISSN: | 0948-3055 | ||||
| Official Date: | 2009 | ||||
| Dates: |
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| Volume: | Vol.57 | ||||
| Number: | No.1 | ||||
| Number of Pages: | 9 | ||||
| Page Range: | pp. 69-77 | ||||
| DOI: | 10.3354/ame01330 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Natural Environment Research Council (Great Britain) (NERC), UK Natural Environment Research Council (NERC) | ||||
| Grant number: | NE/CO01923/1 |
Data sourced from Thomson Reuters' Web of Knowledge
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