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

Thomson River drainage sub-basin

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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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Thomson River drainage sub-basin wetland area by system 2019
System Area (ha) % wetlands area % total area
Total 153,137 100.0% 1.6%
Total excluding riverine and artificial/highly modified riverine 71,099 46.4% 0.7%
Artificial and highly modified 2,159 1.4% 0.0%
Intertidal (saltmarsh, saltflats, mangroves) (natural) 0 0.0% 0.0%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 0 0.0% 0.0%
Lacustrine (natural) 21,265 13.9% 0.2%
Lacustrine (slightly modified) 1,060 0.7% 0.0%
Palustrine (natural) 46,155 30.1% 0.5%
Palustrine (slightly modified) 461 0.3% 0.0%
Riverine 82,038 53.6% 0.9%
Thomson River drainage sub-basin wetland area by habitat 2019
Habitat Area (ha) % wetlands area % total area
Total 67,631 100.0% 0.7%
Mangroves - Casuarina 0 0.0% 0.0%
Mangroves - other 0 0.0% 0.0%
Salt marsh and salt flats 0 0.0% 0.0%
Arid and semi-arid saline lake 1,076 1.6% 0.0%
Arid and semi-arid floodplain lake 20,097 29.7% 0.2%
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 0 0.0% 0.0%
Coastal and sub-coastal non-floodplain sand (perched) lake 0 0.0% 0.0%
Coastal and sub-coastal non-floodplain soil lake 0 0.0% 0.0%
Arid and semi-arid saline swamp 31,947 47.2% 0.3%
Arid and semi-arid floodplain tree swamp 5,428 8.0% 0.1%
Arid and semi-arid floodplain shrub swamp 1,267 1.9% 0.0%
Arid and semi-arid floodplain grass, sedge and herb swamp 1,008 1.5% 0.0%
Arid and semi-arid non-floodplain tree swamp 2,632 3.9% 0.0%
Arid and semi-arid non-floodplain shrub swamp 22 0.0% 0.0%
Arid and semi-arid non-floodplain grass, sedge and herb swamp 4,154 6.1% 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 0 0.0% 0.0%
Coastal and sub-coastal non-floodplain wet heath swamp 0 0.0% 0.0%
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 0 0.0% 0.0%
Coastal and sub-coastal other non-floodplain swamp 0 0.0% 0.0%
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 0 0.0% 0.0%
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 0 0.0% 0.0%
Coastal and sub-coastal floodplain wet heath swamp 0 0.0% 0.0%
Coastal and sub-coastal other floodplain swamp 0 0.0% 0.0%
Coastal and sub-coastal tree (palm) swamp 0 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

Thomson River drainage sub-basin 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 153,137 153,134 153,232 153,231 153,639 153,686 152,837 * 98.8%
Artificial and highly modified 2,159 2,156 2,127 2,108 2,067 1,918 0 n/a
Intertidal (saltmarsh, saltflats, mangroves) (natural) 0 0 0 0 0 0 0 n/a
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 0 0 0 0 0 0 0 n/a
Lacustrine (natural) 21,265 21,265 21,265 21,265 21,265 21,265 21,267 100.0%
Lacustrine (slightly modified) 1,060 1,060 1,060 1,058 1,058 1,059 0 n/a
Palustrine (natural) 46,155 46,155 46,132 46,137 46,196 46,205 47,428 97.3%
Palustrine (slightly modified) 461 461 461 461 461 461 0 n/a
Riverine 82,038 82,038 82,188 82,202 82,592 82,779 84,142 97.5%

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

Thomson River drainage sub-basin 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 67,631 67,631 67,608 67,614 67,672 67,682
Mangroves - Casuarina 0 0 0 0 0 0
Mangroves - other 0 0 0 0 0 0
Salt marsh and salt flats 0 0 0 0 0 0
Arid and semi-arid saline lake 1,076 1,076 1,076 1,076 1,076 1,076
Arid and semi-arid floodplain lake 20,097 20,097 20,097 20,097 20,097 20,097
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 0 0 0 0 0 0
Coastal and sub-coastal non-floodplain sand (perched) lake 0 0 0 0 0 0
Coastal and sub-coastal non-floodplain soil lake 0 0 0 0 0 0
Arid and semi-arid saline swamp 31,947 31,947 31,905 31,907 31,966 31,967
Arid and semi-arid floodplain tree swamp 5,428 5,428 5,441 5,441 5,441 5,441
Arid and semi-arid floodplain shrub swamp 1,267 1,267 1,267 1,267 1,267 1,267
Arid and semi-arid floodplain grass, sedge and herb swamp 1,008 1,008 1,008 1,008 1,008 1,009
Arid and semi-arid non-floodplain tree swamp 2,632 2,632 2,632 2,632 2,632 2,641
Arid and semi-arid non-floodplain shrub swamp 22 22 22 22 22 22
Arid and semi-arid non-floodplain grass, sedge and herb swamp 4,154 4,154 4,160 4,162 4,162 4,162
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 0 0 0 0 0 0
Coastal and sub-coastal non-floodplain wet heath swamp 0 0 0 0 0 0
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 0 0 0 0 0 0
Coastal and sub-coastal other non-floodplain swamp 0 0 0 0 0 0
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 0 0 0 0 0 0
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 0 0 0 0 0 0
Coastal and sub-coastal floodplain wet heath swamp 0 0 0 0 0 0
Coastal and sub-coastal other floodplain swamp 0 0 0 0 0 0
Coastal and sub-coastal tree (palm) swamp 0 0 0 0 0 0
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

Thomson River drainage sub-basin land use
ALUMC code and description
Area (ha)
% total area
Total 9,510,070 100.0%
2.1 Grazing native vegetation 9,203,236 96.8%
1.1 Nature conservation 135,503 1.4%
6.5 Marsh/wetland 75,574 0.8%
6.1 Lake 51,319 0.5%
1.3 Other minimal use 22,041 0.2%
1.2 Managed resource protection 5,589 0.1%
6.3 River 4,730 0.0%
6.2 Reservoir/dam 4,208 0.0%
5.7 Transport and communication 2,758 0.0%
5.5 Services 2,026 0.0%
5.4 Residential and farm infrastructure 1,943 0.0%
5.8 Mining 587 0.0%
4.3 Irrigated cropping 298 0.0%
5.9 Waste treatment and disposal 95 0.0%
3.3 Cropping 55 0.0%
5.3 Manufacturing and industrial 48 0.0%
5.2 Intensive animal production 36 0.0%
5.6 Utilities 17 0.0%
3.4 Perennial horticulture 4 0.0%
5.1 Intensive horticulture 2 0.0%

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Wildlife

Kingdom
Class
Native Introduced Wetland
indicator
species
Rare or
threatened
species
All
TOTAL 2,233 184 244 56 2,417
Animals 558 20 91 27 578
Mammals 65 13 1 4 78
Birds 287 4 53 16 291
Reptiles 148 0 5 4 148
Amphibians 23 1 11 0 24
Ray-finned fishes 19 2 21 3 21
Insects 14 0 0 0 14
Malacostracans 2 0 0 0 2
Bacteria 7 0 0 0 7
Fungi 24 0 0 0 24
Plants 1,644 164 153 29 1,808

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

This page should be cited as:

Department of Environment, Science and Innovation, Queensland (2013) Thomson River drainage sub-basin — facts and maps, WetlandInfo website, accessed 16 April 2025. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/facts-maps/sub-basin-thomson-river/

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