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Petrel Sub-basin Marine Survey (GA-0335 / SOL5463) (NLECI Program) - Ecology / Infaunal morphospecies identifications

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.


Dataset citation

ANZLIC unique identifier: ANZCW0703016755

Title: Petrel Sub-basin Marine Survey (GA-0335 / SOL5463) (NLECI Program) - Ecology / Infaunal morphospecies identifications


Custodian

Custodian: Geoscience Australia

Jurisdiction: Australia


Description

Abstract:

The Petrel Sub-basin Marine Survey GA-0335 (SOL5463) was undertaken by the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was a collaboration between the Australian Institute of Marine Science (AIMS) and GA. The purpose was to acquire geophysical and biophysical data on shallow (less then 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas.

This dataset contains identifications of animals collected from 21 Smith-McIntyre grabs deployed during GA-334. Biological specimens were collected from Smith-McIntyre grabs. Sediment was elutriated for ~ 5 minutes over a 500um sieve. Retained sediments and animals were then preserved in 70% ethanol for later laboratory sorting and identification (see `lineage?). The dataset is current as of November 2012, but will be updated as taxonomic experts contribute.

ANZLIC search words:

  • MARINE Surveys

Spatial domain:

locality map

Geographic extent name: JOSEPH BONAPARTE GULF - JOSEPH BONAPARTE GULF - Ocean and Sea Regions - Australia

Geographic extent polygon: 128.75 -12.29, 129.32 -12.29, 129.32 -12.93, 128.75 -12.93, 128.75 -12.29,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:
North bounding latitude: -12.29 °
South bounding latitude: -12.93 °
East bounding longitude: 129.32 °
West bounding longitude: 128.75 °

Data currency

Beginning date: 2012-05-03

Ending date: 2012-05-31


Dataset status

Progress: Complete

Maintenance and update frequency: Not Known


Access

Stored data format:
DIGITAL - xls Microsoft Excel spreadsheet Excel WGS84
Available format type:
DIGITAL - xls Microsoft Excel spreadsheet Excel WGS84

Access constraints:

This material is released under the Creative Commons Attribution 3.0

Free Data Download

Data quality

Lineage:

Samples were sorted under a dissecting microscope (6 ? 25 x) and identified in the following manner:

* Echinoderms were identified according to class (e.g. ophiuroid, echinoid) and all animals in these classes were counted at each station.

* Molluscs were identified according to class (e.g. bivalve, gastropod) and all animals in these classes were counted at each station.

* Polychaete and nematode worms were counted at each station. At the morphospecies level, two distinctive sipunculan worms were counted (sipunculan sp 1, 2). Due to the high number of fragments, worms were only counted if the head was observed.

* All other phyla (arthropods, bryozoans, sponges, cnidarians) were identified to morphospecies by a single observer. For each species, a measure of uncertainty was also applied to gauge the accuracy of morphospecies differentiation among stations.

All specimens will be sent to museums for curation and potential further identification to named species. Echinoderms will be sent to Museum of Victoria, molluscs and worms to Museum and Art Gallery of the Northern Territory, and all other phyla to the Australia Museum, as per previous taxonomic collections from surveys GA-322 and GA-325.

Positional accuracy:

Inherited from raw data in which C-NAV system was used to provide geographical position with a manufacturer accuracy of 10 cm RMS. Inherited from raw data in which an Applanix system was used to provide roll and pitch, and heave with manufacturer accuracies for roll and pitch are 0.05 deg. RMS, and manufacturer accuracy for heave is 5 cm. However there are spatial offsets between the C-NAV system and the grab that were not measured but are presumed to be in the order of meters.

Attribute accuracy:

For each species identified to morphospecies, a measure of uncertainty was also applied to gauge the accuracy of differentiation among stations.

Logical Consistency:

Unknown

Completeness:

Completed


Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address: sales@ga.gov.au

Metadata information

Metadata date: 2013-03-08


Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703016755.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703016755.xml

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Authors:Rachel Przeslawski
SPATIAL INFORMATION FOR THE NATION