Metadata : Northern Territory Crocodile Capture Zones


Metadata Details:

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


Date Metadata Extracted:2023-02-02

Date Metadata Last Updated:2022-03-14

Current URL (HTML format) :

Current URL (XML format) :


ANZLIC Identifier:C67DB1A044D43F3BE0532144CD9B0761

Title: Northern Territory Crocodile Capture Zones

Citation Date:2021-07-07

Date Type:publication

Custodian:Department of Environment, Parks and Water Security



The location of where crocodiles are captured in the Northern Territory are defined by broad geographic areas referred to as Crocodile Capture Zones. The coordinate location of traps is not provided to the public.

Details about daily capture records are sourced from the Croc Capture Database and stored in a separate table. The table is available for public access but does not include coordinate locations. (see Access Constraint below)
The count is also summarised as a yearly cumulative value for each zone and displayed for public view on NR Maps.

The zones may be viewed using NR Maps. See folder: Parks and Culture > Wildlife.
The cumulative total for each zone is updated on a nightly basis. Add the zones together for a yearly Northern Territory total.

For more information about crocodile captures in the Northern Territory, visit

ANZLIC Search Words:

Spatial Domain:

Bounding Coordinates:

Dataset Status

Dataset ID:


Character Set: Latin 1


Maintenance and Update Frequency:notPlanned

Data Currency Start Date:2009-07-01

Data Currency End Date:

Access Constraint:Download the spatial data package (polygons and table) via

You are licensed to use the geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at:
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, Parks and Water Security. Copyright Northern Territory Government.

Data Quality

Lineage:The spatial polygons were developed by NTG staff supporting the crocodile management program using GIS software (ESRI ArcGIS shapefiles). Data sources for coastlines and islands were the GEODATA TOPO 250K Series 3 Topographic Data from Geoscience Australia. Zones were generally developed as follows;
- Borroloola: 100 km buffer from Borroloola township
- Katherine Zone 1: 5 km buffer from the Katherine River
- Litchfield: an extraction from reserves in GEODATA.
- Management Zone: originated in 2009 with minor modifications over the years.
- Nhulunbuy: 50 km buffer from Nhulunbuy township.
- Shoal Bay, Upper Harbour, Lower Harbour: straight line boundaries were hand-drawn

The spatial polygons are provided in an ESRI shapefile format in Geographics with datum GDA94. The capture table is provided in a Microsoft Office Excel format.

Positional Accuracy: - The zone boundaries are generally created using boundaries from data scale 1:250,000.
- Daily capture records include a coordinate location however this is not provided for public access.

Attribute Accuracy: - The capture zones are named and have a currency date.
- The daily capture records contain details including; capture date and method, crocodile size and general location details. The coordinate location for each capture is not available for public access.
- The zone totals in the capture table are sourced from the Crocodile Capture Database. Zero (or null) values may reflect incorrect details in the database.

Logical Consistency:The polygons are multi-part.

Completeness:The spatial boundaries are complete. If amended, the information will be noted in the Lineage section of this metadata record.
An associated table, NT Crocodile Captures.xlsx is updated nightly.


Data Requests OfficerDepartment of Environment, Parks and Water SecurityGeospatial Services Branch (on behalf of department)

Data Dictionary

AttributeAttribute DescriptionPossible CodeCode Description
CREATEDThe current date of the Crocodile Management Zone
ZONE_CODEA numerical identifier for each Crocodile Management Zone
ZONE_NAMECrocodile Management Zone name

Supplementary Information

For more information about crocodile capture in the Northern Territory, visit

This record maintained using the NTLIS Metadata Tool