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Queensland Government
WetlandInfo   —   Department of the Environment, Tourism, Science and Innovation

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Sub-basins (herb)

Islands sub-basin (herb)

Access wetland mapping in PDF and KML format by selecting the desired 100K map tile below or download the data via the Queensland Government Information Service.

The below map is for visual representation purposes only. For more detailed mapping, please download the boundary KML.

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Catchment stories info

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Wetland observations

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Wetland extents info metadata

Based on wetland mapping version 6.0

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Islands sub-basin (herb) wetland area by system 2019
System Area (ha) % wetlands area % total area
Total 152,370 100.0% 3.5%
Total excluding riverine and artificial/highly modified riverine 151,254 99.3% 3.5%
Artificial and highly modified 635 0.4% 0.0%
Intertidal (saltmarsh, saltflats, mangroves) (natural) 117,350 77.0% 2.7%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 81 0.1% 0.0%
Lacustrine (natural) 3,358 2.2% 0.1%
Lacustrine (slightly modified) 96 0.1% 0.0%
Palustrine (natural) 29,700 19.5% 0.7%
Palustrine (slightly modified) 39 0.0% 0.0%
Riverine 1,109 0.7% 0.0%
Islands sub-basin (herb) wetland area by habitat 2019
Habitat Area (ha) % wetlands area % total area
Total 145,708 100.0% 3.4%
Mangroves - Casuarina 451 0.3% 0.0%
Mangroves - other 79,368 54.5% 1.8%
Salt marsh and salt flats 32,838 22.5% 0.8%
Arid and semi-arid saline lake 0 0.0% 0.0%
Arid and semi-arid floodplain lake 0 0.0% 0.0%
Arid and semi-arid other non-floodplain lake 0 0.0% 0.0%
Arid and semi-arid non-floodplain clay plan lake 0 0.0% 0.0%
Arid and semi-arid permanently inundated lake 0 0.0% 0.0%
Coastal and sub-coastal floodplain lake 0 0.0% 0.0%
Coastal and sub-coastal non-floodplain rock lake 0 0.0% 0.0%
Coastal and sub-coastal non-floodplain sand (window) lake 2,355 1.6% 0.1%
Coastal and sub-coastal non-floodplain sand (perched) lake 988 0.7% 0.0%
Coastal and sub-coastal non-floodplain soil lake 0 0.0% 0.0%
Arid and semi-arid saline swamp 0 0.0% 0.0%
Arid and semi-arid floodplain tree swamp 0 0.0% 0.0%
Arid and semi-arid floodplain shrub swamp 0 0.0% 0.0%
Arid and semi-arid floodplain grass, sedge and herb swamp 0 0.0% 0.0%
Arid and semi-arid non-floodplain tree swamp 0 0.0% 0.0%
Arid and semi-arid non-floodplain shrub swamp 0 0.0% 0.0%
Arid and semi-arid non-floodplain grass, sedge and herb swamp 0 0.0% 0.0%
Arid and semi-arid other non-floodplain swamp 0 0.0% 0.0%
Arid and semi-arid Great Artesian Basin fed spring swamp 0 0.0% 0.0%
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp 10,888 7.5% 0.3%
Coastal and sub-coastal non-floodplain wet heath swamp 1,459 1.0% 0.0%
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 12,722 8.7% 0.3%
Coastal and sub-coastal other non-floodplain swamp 2 0.0% 0.0%
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 4,559 3.1% 0.1%
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 39 0.0% 0.0%
Coastal and sub-coastal floodplain wet heath swamp 27 0.0% 0.0%
Coastal and sub-coastal other floodplain swamp 0 0.0% 0.0%
Coastal and sub-coastal tree (palm) swamp 12 0.0% 0.0%
Unknown - Swamp - Arid and semi-arid 0 0.0% 0.0%
Unknown - Swamp - Coastal and sub-coastal 0 0.0% 0.0%

Disclaimer

Areas do not include marine or estuarine waters but do include estuarine wetland vegetation
(e.g. mangroves and tidal flats).

All statistics are approximate and generated based on data transformed to a customised Albers equal-area projection, thus allowing wetland extent change for different regions of Queensland to be comparable.

Areas may change over time as mapping approaches improve.

Totals may not match the sum of individually displayed figures due to the rounding of displayed figures.

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Wetland extent changes

Islands sub-basin (herb) wetland extent change by system
System 2019 area
(ha)
2017 area
(ha)
2013 area
(ha)
2009 area
(ha)
2005 area
(ha)
2001 area
(ha)
pre-clear area
(ha)
2019/pre-clear
percentage
Total 152,370 152,383 152,353 152,155 152,201 151,992 154,691 * 98.1%
Artificial and highly modified 635 643 615 407 448 525 0 n/a
Intertidal (saltmarsh, saltflats, mangroves) (natural) 117,350 117,354 117,356 117,366 117,367 117,377 117,461 99.9%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 81 81 81 79 79 79 0 n/a
Lacustrine (natural) 3,358 3,358 3,358 3,358 3,359 3,359 3,362 99.9%
Lacustrine (slightly modified) 96 96 93 93 88 64 0 n/a
Palustrine (natural) 29,700 29,702 29,702 29,704 29,710 29,439 32,260 92.1%
Palustrine (slightly modified) 39 39 39 39 41 41 0 n/a
Riverine 1,109 1,109 1,109 1,109 1,109 1,109 1,609 68.9%

* Total 2019/pre-clear percentage excludes artificial and highly modified

Islands sub-basin (herb) wetland extent change by habitat
Habitat 2019 area
(ha)
2017 area
(ha)
2013 area
(ha)
2009 area
(ha)
2005 area
(ha)
2001 area
(ha)
Total 145,708 145,714 145,716 145,725 145,735 145,475
Mangroves - Casuarina 451 451 451 451 451 451
Mangroves - other 79,368 79,372 79,375 79,349 79,349 79,355
Salt marsh and salt flats 32,838 32,838 32,838 32,871 32,873 32,877
Arid and semi-arid saline lake 0 0 0 0 0 0
Arid and semi-arid floodplain lake 0 0 0 0 0 0
Arid and semi-arid other non-floodplain lake 0 0 0 0 0 0
Arid and semi-arid non-floodplain clay plan lake 0 0 0 0 0 0
Arid and semi-arid permanently inundated lake 0 0 0 0 0 0
Coastal and sub-coastal floodplain lake 0 0 0 0 0 0
Coastal and sub-coastal non-floodplain rock lake 0 0 0 0 0 0
Coastal and sub-coastal non-floodplain sand (window) lake 2,355 2,355 2,355 2,355 2,356 2,356
Coastal and sub-coastal non-floodplain sand (perched) lake 988 988 988 988 988 988
Coastal and sub-coastal non-floodplain soil lake 0 0 0 0 0 0
Arid and semi-arid saline swamp 0 0 0 0 0 0
Arid and semi-arid floodplain tree swamp 0 0 0 0 0 0
Arid and semi-arid floodplain shrub swamp 0 0 0 0 0 0
Arid and semi-arid floodplain grass, sedge and herb swamp 0 0 0 0 0 0
Arid and semi-arid non-floodplain tree swamp 0 0 0 0 0 0
Arid and semi-arid non-floodplain shrub swamp 0 0 0 0 0 0
Arid and semi-arid non-floodplain grass, sedge and herb swamp 0 0 0 0 0 0
Arid and semi-arid other non-floodplain swamp 0 0 0 0 0 0
Arid and semi-arid Great Artesian Basin fed spring swamp 0 0 0 0 0 0
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp 10,888 10,889 10,889 10,889 10,890 10,887
Coastal and sub-coastal non-floodplain wet heath swamp 1,459 1,459 1,459 1,460 1,460 1,191
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 12,722 12,722 12,722 12,722 12,730 12,731
Coastal and sub-coastal other non-floodplain swamp 2 2 2 2 2 2
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 4,559 4,559 4,559 4,559 4,559 4,559
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 39 39 39 39 39 39
Coastal and sub-coastal floodplain wet heath swamp 27 27 27 27 27 27
Coastal and sub-coastal other floodplain swamp 0 0 0 0 0 0
Coastal and sub-coastal tree (palm) swamp 12 12 12 12 12 12
Unknown - Swamp - Arid and semi-arid 0 0 0 0 0 0
Unknown - Swamp - Coastal and sub-coastal 0 0 0 0 0 0

Disclaimer

Areas do not include marine or estuarine waters but do include estuarine wetland vegetation
(e.g. mangroves and tidal flats).

All statistics are approximate and generated based on data transformed to a customised Albers equal-area projection, thus allowing wetland extent change for different regions of Queensland to be comparable.

Areas may change over time as mapping approaches improve.

Totals may not match the sum of individually displayed figures due to the rounding of displayed figures.

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Australian Land Use and Management Classification (ALUMC) metadata

Islands sub-basin (herb) land use
ALUMC code and description
Area (ha)
% total area
Total 777,054 17.9%
1.1 Nature conservation 317,681 7.3%
1.3 Other minimal use 169,149 3.9%
6.5 Marsh/wetland 77,170 1.8%
1.2 Managed resource protection 64,067 1.5%
6.3 River 62,748 1.4%
6.6 Estuary/coastal waters 41,360 1.0%
2.2 Production native forests 14,999 0.3%
2.1 Grazing native vegetation 11,804 0.3%
6.1 Lake 4,822 0.1%
5.4 Residential and farm infrastructure 4,426 0.1%
3.1 Plantation forests 2,772 0.1%
5.5 Services 1,663 0.0%
5.8 Mining 1,162 0.0%
5.3 Manufacturing and industrial 1,079 0.0%
5.7 Transport and communication 697 0.0%
5.6 Utilities 674 0.0%
3.6 Land in transition 511 0.0%
6.2 Reservoir/dam 122 0.0%
5.9 Waste treatment and disposal 104 0.0%
5.2 Intensive animal production 35 0.0%
4.3 Irrigated cropping 7 0.0%
4.4 Irrigated perennial horticulture 2 0.0%
3.4 Perennial horticulture 2 0.0%
4.5 Irrigated seasonal horticulture 1 0.0%
5.1 Intensive horticulture < 1 0.0%

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Wildlife

Kingdom
Class
Native Introduced Wetland
indicator
species
Rare or
threatened
species
All
TOTAL 9,988 1,108 916 526 11,096
Animals 1,747 63 422 177 1,810
Mammals 192 22 10 36 214
Birds 688 14 106 74 702
Reptiles 332 4 40 24 336
Amphibians 95 1 35 19 96
Lobe-finned fishes 1 0 1 1 1
Ray-finned fishes 132 14 139 10 146
Cartilaginous fishes 40 0 40 6 40
Insects 254 8 51 5 262
Malacostracans 11 0 0 2 11
Arachnids 1 0 0 0 1
Snails 1 0 0 0 1
Bacteria 101 0 0 0 101
Chromists 109 0 0 0 109
Fungi 1,087 0 0 0 1,087
Plants 6,943 1,045 494 349 7,988
Protozoans 1 0 0 0 1

Note: Wildlife statistics are based on information that has been submitted to the DETSI WildNet database and converted to a 10km² grid. The grid information has been intersected with the mapping polygons to determine the species lists. Click here to view the species grid metadata.

Information from WildNet can also be accessed via Wildlife Online and WetlandMaps.

Rare or threatened includes species listed as extinct, extinct in the wild, critically endangered, endangered, vulnerable or conservation dependent under either the Nature Conservation Act or Environment Protection and Biodiversity Conservation Act

Disclaimer: While every care is taken to ensure the accuracy of this product, the Queensland Government and Australian Government make no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and disclaim all responsibility and all liability (including without limitation, liability in negligence) for all expenses, losses, damages (including indirect or consequential damage) and costs which might be incurred as a consequence of reliance on the product, or as a result of the product being inaccurate or incomplete in any way and for any reason.

AreaType-sub-basin-herb

This page should be cited as:

Department of Environment, Science and Innovation, Queensland (2013) Islands sub-basin (herb) — facts and maps, WetlandInfo website, accessed 13 April 2025. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/facts-maps/sub-basin-herb-islands/

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