Generalized Surficial Geologic Map of the Denver 1 degree x 2 degree Quadrangle, ColoradoEntry ID: USGS_Map_MF-2347
Abstract: Antarctic sediments and sea-ice are important regulators in global biogeochemical and atmospheric cycles. These ecosystems contain a diverse range of bacteria whose biogeochemical roles remains largely unknown and which inhabit what are continually low temperature habitats. An integrated molecular and chemical approach will be used to investigate the coupling of microbial biogeochemical processes ... with community structure and cold adaptation within coastal Antarctic marine sediments and within sea-ice. Overall the project expects to make an important contribution to our understanding of biological processes within low temperature habitats.
DATA SET ORGANISATION:
The dataset is organised on the basis of publication and is organised on the basis of the following sections:
1. SEDIMENT SAMPLES and ISOLATES
Samples collected are described in terms of location, type and where data were obtained chemical features. The designation, source, media used for cultivation and isolation and availability of sediment and other related isolates are provided. Samples included are from the following locations: Clear Lake, Pendant Lake, Scale Lake, Ace Lake, Burton Lake, Ekho Lake, Organic Lake, Deep lake and Taynaya Bay (Burke Basin), Vestfold Hills region; and the Mertz Glacier Polynya region.
2. BIOMASS and ENZYME ACTIVITY DATA
Biomass, numbers and extracellular enzyme activity data are provided for Bacteria and Archaea populations from Mertz Glacier Polynya shelf sediments.
3. FATTY ACID and TETRAETHER LIPID DATA
Phospholipid and tetraether lipid data are provided for Mertz Glacier Polynya shelf sediments. Whole cell fatty acid data are provided for various bacterial isolates described officially as new genera or species.
4. RNA HYBRIDISATION DATA
RNA hybridisation data for Mertz Glacier Polynya sediment samples is provided, including data for oligonucleotide probes specifc for total Bacteria, Archaea, the Desulfosarcina group (class Deltaproteobacteria, sulfate reducing bacterial clade), phylum Planctomycetes, phylum Bacteroidetes (Cytophaga-Flavobacterium-Bacteroides), class Gammaproteobacteria, sulfur-oxidizing and related bacteria (a subset of class Gammaproteobacteria) and Eukaryota.
5. PHYLOGENETIC DATA
16S rRNA gene sequence data are indicated including aligned datasets for three clone libraries derived from the Mertz Glacier Polynya including GenBank accession numbers. Sequence accession numbers are provided for Vestfold Hills lake sediment samples. In addition GenBank numbers are provided for denaturing gradient gel electrophoresis band sequence data from Mertz Glacier Polynya shelf sediment. Other forms of this DGGE data (banding profile analysis) are available in reference Bowman et al. 2003 (AAD ref 10971).
(Click for Interactive Map)
Start Date: 2000-07-01Stop Date: 2001-06-30
Latitude Resolution: 14m
Longitude Resolution: 14m
Horizontal Resolution Range: 1 meter - < 30 meters
Quality Topographic features in the Heard Island Coastal Area were mapped by a photogrammetrist from the ortho-rectified imagery described in the metadata record &Heard Island Coastal Orthophotos derived from Non-Metric Photography& (ID - HIC_NMOrthos).
The features were mapped using Erdas 8.5 and ArcView 8.1. The photography only covered coastal regions and excluded glaciers. Photography was ... taken using a non-metric camera and the data were rectified using GPS ground control and a small scale Radarsat DEM. The calibration details of the camera were unknown.
Any additional topographic features mapped as part of the vegetation mapping project described in HIC_NMOrtho_VegMapping which were not initially mapped were included in the topographic dataset.
The digitised data were then imported into Arc/Info coverage format and topology was created. The data are attributed according to the Feature Catalogue.
Access Constraints The data are publicly available for download at the url given below.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at the URL below when using these data.
Data Set Progress
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6232 3519
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Creation and Review Dates
DIF Creation Date: 2004-08-10
Last DIF Revision Date: 2008-04-10