Diatom data for transects at 4 locations in the Windmill Islands

Sediment samples were collected from four locations within the Windmill Islands (Cloyd Island, Odbert Island, Shannon Bay and Brown Bay). Within each location three parallel transects were created, with samples taken at set depths along each transect. At the time of collection, both surface and benthic irradiance levels were measured, and the % of surface irradiance that reached the sediment-water interface was calculated. Samples were analysed for benthic diatom abundances (expressed as relative abundances), and grain-size (expressed as % of total weight).


The diatom spreadsheet (diatom_data)lists the relative abundance of benthic species. The abbreviation used to identify species are explained in the separate file called sp_list. Samples are identified XTYZ where X is the first letter of the location, Y indicates the sampling position along the transect and z indicates the transect (a, b or c). The benthic sheet is the relative abundances of benthic species. The greater than 2% sheet lists all the species that reach abundances greater than2% in at least 1 sample. The table sheet has the same info as greater than 2% but arranged by the individual locations. In this sheet (tables), measurements in m represent the depth of the water column overlying the position where the sediment samples were collected. (ie it was at different locations, not different water depths in the one spot).


Sampling positions reflect increasing depth. At Brown Bay and Odbert Island, sediment samples were collected below water columns/water depths of 1, 2, 4, 8 and 12 m. At Cloyd Island, samples were collected from 4,6,8 and 12 m water depths. At Shannon Bay samples were collected from 2, 4, 8, and 12 m water depths.


Details of the environmental parameters examined (grainsize and light) are given in the file labelled 'env_data'


This work was completed as part of ASAC project 1130 (ASAC_1130).


Public summary from project 1130:


Algal mats grow on sea floor in most shallow marine environments. They are thought to contribute more than half of the total primary production in many of these areas, making them a critical food source for invertebrates and some fish. We will establish how important they are in Antarctic marine environments and determine the effects of local sewerage and tip site pollution. We will also investigate the impact on the algal mats of the additional UV radiation which results from the ozone hole.


The fields in this dataset are:


Diatom Spreadsheet


Species

Site

Location

Transect

Depth (m)


Environmental Data Spreadsheet


Location

Transect

Depth (m)

Grain size

Gravel

Sand

Mud

Light

Simple

Identification info

Alternate title
Diatom data for transects at 4 locations in the Windmill Islands
Date (Publication)
2003-06-11
Edition
1
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.4225/15/5ae27d0150c0b

Originator

Riddle, M.J., McMinn, A. and Cunningham, L.K.

Publisher

Australian Antarctic Data Centre

Principal investigator

RIDDLE, MARTIN J.
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Principal investigator

MCMINN, ANDREW
Institute of Marine and Antarctic Studies
University of Tasmania
Private Bag 77
Hobart
Tasmania
7001
Australia

Principal investigator

CUNNINGHAM, LAURA KAY
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

CUNNINGHAM, LAURA KAY
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/Diatom_transects

Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Topic category
  • Biota
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2001-01-13 2001-01-15
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > DIATOMS
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
  • EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > COMMUNITY STRUCTURE
Keywords
  • ANTARCTICA
  • DEPTH
  • GRAIN SIZE
  • GRAVEL
  • LIGHT
  • LOCATION
  • MARINE BAYS
  • MUD
  • SAND
  • SITE
  • SPECIES
  • TRANSECTS
NASA/GCMD Earth Science Keywords
  • VISUAL CENSUS TRANSECTS
NASA/GCMD Earth Science Keywords
  • FIELD SURVEYS
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • CEOS
  • AMD
NASA/GCMD Earth Science Keywords
  • CONTINENT > ANTARCTICA > Windmill Islands
  • GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
These data are publicly available for download from the provided URL.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other constraints
This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=Diatom_transects when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Distributor

Fees
free
Planned available datetime
2003-06-11T00:00:00
Units of distribution
kb
Transfer size
41
Distribution format
  • excel

OnLine resource
GET DATA

Download point for the data

OnLine resource
PROJECT HOME PAGE

Public information for ASAC project 1130

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset

Maintenance and update frequency
As needed
Maintenance note
2018-04-27 - record updated by Dave Connell - basic updates.

Metadata

Metadata identifier
string/Diatom_transects

Language
English
Character encoding
UTF8

Author

CUNNINGHAM, LAURA KAY
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
ceef9f90-584a-4ac3-bc4b-dfaced71eb5f

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2015-11-29T19:41:50

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/Diatom_transects

Point of truth for the metadata record

Date info (Creation)
2003-06-11T00:00:00
Date info (Last Update)
2018-04-27

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
S
E
W


Keywords


Provided by

Share on social sites

Access to the record in catalogue

Associated resources

Not available