Benthic Communities of the Gunn Point Peninsula, 2020

Index:

Metadata
Citation
Description

Dataset Status
Data Quality
Contact Information
Data Dictionary
Supplementary Information

Metadata Details:

Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version:1.0

Date Metadata Extracted:2024-04-20

Date Metadata Last Updated:2020-07-17

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=AA8612BCAA0B7716E0530101007FC3CA

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=AA8612BCAA0B7716E0530101007FC3CA

Citation

ANZLIC Identifier:AA8612BCAA0B7716E0530101007FC3CA

Title:Benthic Communities of the Gunn Point Peninsula, 2020

Citation Date:2020-07-17

Date Type:publication

Custodian:Department of Environment, Parks and Water Security

Description

Abstract:

This polygon spatial dataset describes the benthic habitats likely to occur in marine environments around Gunn Point Peninsula and informs the desktop assessment of the marine biodiversity values for the region.

The benthic habitats are inferred from existing information but in most cases require further data collection to validate and refine.

Habitat modelling forms the basis of benthic community value assessment for Shoal Bay (Galaiduk et al. 2019).

The accompanying report Marine and Coastal Biodiversity Assessment of the Gunn Point Area (2020) forms part of the Mapping the Future Project - Gunn Point.
This project has identified land capability, water availability and biodiversity values to support land planning and inform development potential over the Gunn Point area. Reports and maps can be viewed from the webpage: denr.nt.gov.au/land-resource-management/development-opportunities

- Development Potential of the Gunn Point Area (2020)
- Biodiversity Assessment of the Gunn Point Area (2020)
- Groundwater Resources of the Gunn Point Area (2020)
- Marine and Coastal Biodiversity Assessment of the Gunn Point Area (2020)
- Soil and Land Resources of the Gunn Point Area (2020)
- Soil and Land Suitability Assessment for Irrigated Agriculture in the Gunn Point Area (2017)
- Vegetation Communities of the Gunn Point Area (2020)

ANZLIC Search Words:

biota

oceans

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-11.7733116576846

South Bounding Coordinate:-12.2602820260645

East Bounding Coordinate:131.330635741622

West Bounding Coordinate:130.883747427884

Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:

Data Currency End Date:2020-07-17

Access Constraint:The benthic habitats are inferred from existing information but in most cases require further data collection to validate and refine.

Download the spatial data package (contains spatial data, maps and reports) via data.nt.gov.au/

You are licensed to use the DENR geospatial products on the terms and conditions set out in:
Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: https://creativecommons.org/licenses/by/4.0/legalcode
If you do not agree to the terms and conditions you must not use the geospatial products.
You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement:
Supplied by the Department of Environment and Natural Resources. Copyright Northern Territory Government.

Data Quality

Lineage:Polygon data were derived by applying depth - epibenthic community relationships identified in the Darwin-Bynoe and Weddell habitat mapping programs ((Galaiduk et al. 2019, Nichols et al 2019, Siwabessy et al 2019, Smit et al 2012) to collated bathymetric data.
metadata data dataset: Bathymetry around Gunn Point peninsula, metadata record: http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=AA9AE89041522E9EE0530101007FE77C

No new data was collected for this desktop assessment.

The benthic habitats are inferred from existing information but in most cases require further data collection to validate and refine.

Habitat modelling forms the basis of benthic community value assessment for Shoal Bay (Galaiduk et al. 2019, Nichols et al 2019, Siwabessy et al 2019).

For the remaining area, important environmental drivers identified in the Darwin-Bynoe habitat mapping program (Galaiduk et al. 2019, Nichols et al 2019, Siwabessy et al 2019) and other published information (e.g. Smit et al 2012) were used to inform the potential spatial distribution of marine habitats (excluding mangroves). In particular, depth - epibenthic community relationships from habitat modelling results were used to determine upper and lower depth ranges for seven marine habitats.

Positional Accuracy:The benthic habitats are inferred from existing information but in most cases require further data collection to validate and refine

Attribute Accuracy:Attribute values are assigned to each polygon and described in the Data Dictionary below. The attribute naming format uses 10 characters with no spaces to be suitable for an ESRI shape-file format. An alias attribute name is applied to an ESRI file geo-database format.

Logical Consistency:Polygons are single part.

Completeness:Complete

Contacts

Name Organisation Position Role Phone Fax Email

Data Requests Officer Department of Environment, Parks and Water Security Geospatial Services Branch (on behalf of department) distributor datarequests.depws@nt.gov.au

Name	Organisation	Position	Role	Phone	Fax	Email
Data Requests Officer	Department of Environment, Parks and Water Security	Geospatial Services Branch (on behalf of department)	distributor			datarequests.depws@nt.gov.au

Data Dictionary

Attribute Attribute Description Possible Code Code Description

Area_ha Each polygon in the dataset has an area calculation in hectares.

BenComm Alias: Benthic Community

Describes the various benthic communities within the marine and coastal study area. high intertidal above MSL Marine environment above MSL (approx. +4.2m LAT or 0m AHD). Generally lacking non-motile marine fauna.

intertidal coral community Coral dominated community between 0m and +4.2m LAT

intertidal flats intertidal flats wader bird feeding grounds - Intertidal sedimentary environments that potentially could be used as feeding areas by wader birds.

reef edge hard substrate with slope larger than 30 degrees

seagrass community High likelihood for seagrass to occur, based on the combination of known depth range where seagrass consistently is found in Darwin Harbour, sedimentary environment and dugong presence.

seagrass community (deep) potential to occur, depth range between -4m and -10m LAT; bottom range determined by maximum depth at which is seagrass is found in Darwin Harbour, sedimentary environment.

subtidal coral dominated community Coral dominated community between 0m and -10m LAT. Delineated by hard substrate and depth.

subtidal mixed community Epibenthic community within the subtidal zone consisting of equal proportions of coral, macro algal and filter feeder biota.

Attribute	Attribute Description	Possible Code	Code Description
Area_ha	Each polygon in the dataset has an area calculation in hectares.
BenComm	Alias: Benthic Community Describes the various benthic communities within the marine and coastal study area.	high intertidal above MSL	Marine environment above MSL (approx. +4.2m LAT or 0m AHD). Generally lacking non-motile marine fauna.
		intertidal coral community	Coral dominated community between 0m and +4.2m LAT
		intertidal flats	intertidal flats wader bird feeding grounds - Intertidal sedimentary environments that potentially could be used as feeding areas by wader birds.
		reef edge	hard substrate with slope larger than 30 degrees
		seagrass community	High likelihood for seagrass to occur, based on the combination of known depth range where seagrass consistently is found in Darwin Harbour, sedimentary environment and dugong presence.
		seagrass community (deep)	potential to occur, depth range between -4m and -10m LAT; bottom range determined by maximum depth at which is seagrass is found in Darwin Harbour, sedimentary environment.
		subtidal coral dominated community	Coral dominated community between 0m and -10m LAT. Delineated by hard substrate and depth.
		subtidal mixed community	Epibenthic community within the subtidal zone consisting of equal proportions of coral, macro algal and filter feeder biota.

Supplementary Information

Bibliographic Reference:
Palmer, C. and Smit, N., (2020).
Mapping the Future project - Gunn Point
Marine and Coastal Biodiversity Assessment of the Gunn Point Area.
Technical Report 6/2020 Department of Environment and Natural Resources, Darwin, NT.

Download report from NT Library hdl.handle.net/10070/797848

RELATED INFORMATION

Galaiduk, R, Radford, B, Harries S, Case, M, Williams, D, Low Choy, D, and Smit, N. (2019). Technical Report: Darwin - Bynoe Harbours predictive mapping of benthic communities. Australian Institute of Marine Science. Perth, Western Australia.
api.aims.gov.au/data/v1.0/af07f423-98d1-4860-801f-845eefd45dfd/files/AIMS_NT%20Report%203%20-%20Darwin%20Harbour%20Benthic%20Community%20Mapping%20August%202019%20Final%20Rev%200.pdf

Nicholas, WA, Smit, N, Siwabessy, PJW, Atkinson, I, Brinkman, R, Dando, N, Falster, G, Harries, S, Howard, FJF, Huang, Z, Li, J, Nanson, R, Picard, K, Potter, A, Radke, L, Tran, M, Whiteway, T, and Williams, D. (2019). Characterising Marine Abiotic Patterns in the Darwin-Bynoe Harbour region: Summary report, Physical Environments, Darwin Harbour Mapping Project. Department of Environment and Natural Resources. Darwin, Northern Territory.
pid.geoscience.gov.au/dataset/ga/127386

Siwabessy, JP, Smit, N, Nicholas, WA, Atkinson, I, Brinkman, R, Dando, N, Harries, S, Howard, FJF, Huang, Z, Li, J, Picard, K, Potter, A, Radke, LC, Tran, M, Williams, D, and T., W. (2019). Seabed Mapping Darwin Harbour Region (including Bynoe Harbour). Final Report. Department of Environment and Natural Resources. Darwin, Northern Territory, Australia.
pid.geoscience.gov.au/dataset/ga/127384

Smit, N, Penny, S, and Griffiths, T. (2012). Assessment of marine biodiversity and habitat mapping in the Weddell region, Darwin Harbour. Department of Land Resource Management. Palmerston, Northern Territory.
hdl.handle.net/10070/253503

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Metadata : Benthic Communities of the Gunn Point Peninsula, 2020