Outer Darwin Harbour Shallow Water Sediment Survey 2016: Sediment oxygen demand measurements on seabed sediments.

A benthic sediment sampling survey (GA0356) to the nearshore areas of outer Darwin Harbour was undertaken in the period from 03 July to 14 September 2016. Partners involved in the survey included Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and the Department of Environment and Natural Resources within the Northern Territory Government (NT DENR) (formerly the Department of Land and Resource Management (DLRM)). This survey forms part of a four year (2014-2018) science program aimed at improving knowledge about the marine environments in the regions around Darwin and Bynoe Harbour’s through the collection and collation of baseline data that will enable the creation of thematic habitat maps to underpin marine resource management decisions. This project is being led by the Northern Territory Government and is supported by the INPEX-led Ichthys LNG Project, in collaboration with - and co-investment from GA and AIMS. The program builds upon an NT Government project (2011-2011) which saw the collection of baseline data (multibeam echosounder data, sediment samples and video transects) from inner Darwin Harbour (Siwabessy et al. 2015). This dataset comprises sediment oxygen demand measurements on seabed sediments.


Radke, L., Smit, N., Li, J., Nicholas, T., Picard, K. 2017. Outer Darwin Harbour Shallow Water Sediment Survey 2016: GA0356 – Post-survey report. Record 2017/06. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2017.006


This research was funded by the INPEX-led Ichthys LNG Project via the Northern Territory (NT) Government Department of Land Resource Management (DLRM) (now the Department of Environment and Natural Resources (DENR)), and co-investment from Geoscience Australia (GA) and Australian Institute of Marine Science (AIMS). We are grateful to the following agencies for providing boats and staff, and to the following personal for help with sample acquisition: NT DENR (Danny Low Choy and Rachel Groome), NT Fisheries (Wayne Baldwin, Quentin Allsop, Shane Penny, Chris Errily, Sean Fitzpatrick and Mark Grubert), NT Parks and Wildlife (Ray Chatto, Stewart Weorle, and Luke McLaren) and the Larrakia Rangers (Nelson Tinoco, Kyle Lewfat, Alan Mummery and Steven Dawson). Special thanks to the skippers Danny Low Choy, Wayne Baldwin, Stewart Weorle and Luke McLaren whose seamanship strongly guided the execution of this survey. AIMS generously allowed use of the aquarium and laboratory at the Arafura Timor Sea Research Facility, and Simon Harries and Kirsty McAllister helped with the setup. We would also like to acknowledge and thank GA colleagues including: Matt Carey, Ian Atkinson and Craig Wintle (Engineering and Applied Scientific Services) for the organisation of field supplies and the design of the new core incubation set-up.


This dataset is published with the permission of the CEO, Geoscience Australia

Simple

Identification info

Date (Creation)
2017-08-09T11:00:00
Date (Publication)
2017-08-09T14:00:00
Citation identifier
Geoscience Australia Persistent Identifier/http://pid.geoscience.gov.au/dataset/108010

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.4225/25/598a9c0837529

Cited responsible party
Role Organisation / Individual Name Details
Author

Radke, L.C.

 1
Status
Point of contact
Role Organisation / Individual Name Details
Author

Radke, L.A.

Commonwealth of Australia (Geoscience Australia)

 Voice
Spatial representation type
Topic category
  • Geoscientific information

Extent

Temporal extent

Time period
2016-07-03 2016-09-14

Extent

N
S
E
W


Maintenance and update frequency
Not planned

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • Marine survey

Keywords

  • Marine Baselines

Keywords

  • Continental shelf

Keywords

  • Seabed

Keywords

  • Geochemistry

Australian and New Zealand Standard Research Classification: Fields of Research

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice
OnLine resource

Download the Data (xlsx)

Download the Data (xlsx)

Distribution format

  • xlsx

OnLine resource

Link to collection record

Link to collection record

Resource lineage

Statement

Bottom sediments were collected using a Shipek Grab or a Box Core. Three soil samples were also taken (designated as SRS in the sample ID's). Bulk sub-samples (6.5 ml) of surface sediment (0-2 cm) (and soils)were incubated in biological oxygen demand bottles filled with filtered seawater (0.4 um) for ~24 hrs in the dark at ~28oC. Dissolved oxygen concentrations (and saturation values) were measured at the start and finish of each incubation (after a ~30 minute pre-incubation period). Results were expressed on a per gram dry weight (dwt) basis utilising a separate volumetric sample to measure sediment water content. Three blank samples of filtered and uv-treated seawater sediment oxygen demands of 0.0 +/- 0.2 mg L-1 and 3.95 +/- 4.88%. The accuracies of the O2 measurements were +/- 1 mg/L. The accuracy of the scale used to measure wet/dry weights was better than 1%.

Hierarchy level
Dataset

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/b785291f-2610-43ee-bc3b-6c7d264b4665

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Radke, L.A.

Commonwealth of Australia (Geoscience Australia)

 Voice

Type of resource

Resource scope
Dataset
Name

excel dataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/108010

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/b785291f-2610-43ee-bc3b-6c7d264b4665

Date info (Creation)
2017-04-11T23:29:14
Date info (Revision)
2018-04-20T06:00:28

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

Continental shelf Geochemistry Marine Baselines Marine survey Seabed
Australian and New Zealand Standard Research Classification: Fields of Research
Earth Sciences

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