The role of viruses in saline Antarctic lakesEntry ID: ASAC_2306
Abstract: Metadata record for data from ASAC Project 2306
See the link below for public details on this project.
---- Public Summary from Project ----
In the last ten years aquatic microbial ecologists have come to appreciate the potential importance of viruses in microbial community dynamics. Bacteria, algae and protists are all infected by viruses and suffer lysis. This impacts on the cycling of carbon ... and essential inorganic nutrients (nitrogen and phosphorus) in marine and freshwater ecosystems. In order to produce accurate models of these biogeochemical processes, we must gain a full understanding of the nature, abundances, infectivity and turnover rates of viruses in aquatic ecosystems. There is clear evidence that viruses may also maintain clone diversity of microbial elements in the plankton directly by gene transmission or transduction, and indirectly by eliminating dominant host species. Moreover, they also appear to be grazed, along with bacteria, by heterotrophic nanoflagellates. Thus the role of viruses is multifarious and there is a growing realisation that these tiny particles, which can reach abundances of 108 ml-1 in aquatic ecosystems, may play a major role in mediating community dynamics and geochemical processes. We propose investigating the role of viruses marine microbial communities, by using natural, simplified model ecosystems. They are dominated by a microbial plankton, there are no fish and few or no zooplankton. The saline lakes are marine derived systems retaining elements of the marine microbial plankton, and are consequently analogues of the marine environment.In addition to more easily clarify the role of viruses in biogeochemical cycling we will incorporate a study of cryconite holes.
The dataset is stored as an excel spreadsheet, and divided into 3 sheets - one for each lake studied: Ace Lake, Pendant Lake, Highway Lake. A text document detailing the methods used in the study is also available for download.
The fields in this dataset are:
Total Oxygen Content
Dissolved Oxygen Content
Chlamydomonas Type 2
Cryptophyte Type 1
Data Set Citation
Dataset Originator/Creator: Laybourn-Parry, J.
Dataset Title: The role of viruses in saline Antarctic lakes
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2010-12-03
Dataset Publisher: Australian Antarctic Data Centre
Dataset DOI: doi:10.4225/15/574BB9E371F32Online Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
Start Date: 2002-12-12Stop Date: 2004-05-12
Access Constraints These data are available for download from the provided URL.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2306 when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 46 kb
Distribution Format: rtf, excel
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +44 (0117) 3314120
Email: Jo.Laybourn-Parry at bristol.ac.uk
University of Bristol School of Geographical Sciences University Road
Province or State: Bristol
Postal Code: BS8 1SS
Country: UNITED KINGDOM
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2002-07-02
Last DIF Revision Date: 2016-06-17