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

South Eastern Queensland (SEQ) IBRA bioregion

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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

Display areas in

South Eastern Queensland (SEQ) IBRA bioregion wetland area by system 2019
System Area (ha) % wetlands area % total area
Total 332,718 100.0% 5.4%
Total excluding riverine and artificial/highly modified riverine 243,582 73.2% 4.0%
Artificial and highly modified 57,359 17.2% 0.9%
Intertidal (saltmarsh, saltflats, mangroves) (natural) 64,974 19.5% 1.1%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 592 0.2% 0.0%
Lacustrine (natural) 3,603 1.1% 0.1%
Lacustrine (slightly modified) 5,680 1.7% 0.1%
Palustrine (natural) 108,063 32.5% 1.8%
Palustrine (slightly modified) 3,676 1.1% 0.1%
Riverine 88,773 26.7% 1.4%
South Eastern Queensland (SEQ) IBRA bioregion wetland area by habitat 2019
Habitat Area (ha) % wetlands area % total area
Total 180,733 100.0% 2.9%
Mangroves - Casuarina 3,655 2.0% 0.1%
Mangroves - other 43,495 24.1% 0.7%
Salt marsh and salt flats 18,281 10.1% 0.3%
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 2,607 1.4% 0.0%
Coastal and sub-coastal non-floodplain sand (perched) lake 998 0.6% 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 25,962 14.4% 0.4%
Coastal and sub-coastal non-floodplain wet heath swamp 11,280 6.2% 0.2%
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 13,431 7.4% 0.2%
Coastal and sub-coastal other non-floodplain swamp 0 0.0% 0.0%
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 44,738 24.8% 0.7%
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 4,797 2.7% 0.1%
Coastal and sub-coastal floodplain wet heath swamp 11,488 6.4% 0.2%
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

South Eastern Queensland (SEQ) IBRA bioregion 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 332,718 332,881 332,973 331,529 331,075 328,995 407,838 * 67.5%
Artificial and highly modified 57,359 57,399 57,818 56,219 55,120 51,277 0 n/a
Intertidal (saltmarsh, saltflats, mangroves) (natural) 64,974 64,984 65,109 65,389 65,408 65,477 73,863 88.0%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 592 595 348 292 297 313 0 n/a
Lacustrine (natural) 3,603 3,603 3,603 3,603 3,604 3,604 3,607 99.9%
Lacustrine (slightly modified) 5,680 5,664 5,607 5,373 5,292 5,128 0 n/a
Palustrine (natural) 108,063 108,230 108,464 108,614 109,066 109,465 187,581 57.6%
Palustrine (slightly modified) 3,676 3,593 3,112 2,944 2,968 2,963 0 n/a
Riverine 88,773 88,812 88,911 89,095 89,321 90,768 142,787 62.2%

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

South Eastern Queensland (SEQ) IBRA bioregion 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 180,733 180,831 180,456 180,666 181,167 181,646
Mangroves - Casuarina 3,655 3,658 3,482 3,458 3,459 3,462
Mangroves - other 43,495 43,501 43,555 43,566 43,575 43,582
Salt marsh and salt flats 18,281 18,286 18,282 18,522 18,537 18,610
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 2,607 2,607 2,607 2,607 2,608 2,608
Coastal and sub-coastal non-floodplain sand (perched) lake 998 998 998 998 998 998
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 25,962 26,010 25,777 25,796 25,922 26,113
Coastal and sub-coastal non-floodplain wet heath swamp 11,280 11,315 11,317 11,332 11,371 11,128
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 13,431 13,433 13,437 13,439 13,454 13,460
Coastal and sub-coastal other non-floodplain swamp 0 0 0 0 0 0
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 44,738 44,719 44,650 44,559 44,752 45,090
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 4,797 4,802 4,825 4,849 4,883 4,893
Coastal and sub-coastal floodplain wet heath swamp 11,488 11,503 11,524 11,540 11,607 11,703
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

South Eastern Queensland (SEQ) IBRA bioregion land use
ALUMC code and description
Area (ha)
% total area
Total 6,143,073 99.9%
2.1 Grazing native vegetation 3,312,007 53.9%
1.1 Nature conservation 864,688 14.1%
5.4 Residential and farm infrastructure 419,324 6.8%
2.2 Production native forests 355,008 5.8%
1.3 Other minimal use 325,994 5.3%
3.1 Plantation forests 209,272 3.4%
4.3 Irrigated cropping 114,361 1.9%
6.5 Marsh/wetland 70,372 1.1%
3.3 Cropping 68,549 1.1%
5.5 Services 65,561 1.1%
6.2 Reservoir/dam 58,209 0.9%
1.2 Managed resource protection 51,562 0.8%
4.5 Irrigated seasonal horticulture 43,571 0.7%
6.3 River 28,432 0.5%
4.4 Irrigated perennial horticulture 27,356 0.4%
5.7 Transport and communication 21,561 0.4%
4.2 Grazing irrigated modified pastures 17,079 0.3%
5.3 Manufacturing and industrial 15,346 0.2%
3.6 Land in transition 13,554 0.2%
5.8 Mining 11,946 0.2%
3.2 Grazing modified pastures 11,201 0.2%
3.4 Perennial horticulture 9,563 0.2%
5.2 Intensive animal production 7,101 0.1%
6.6 Estuary/coastal waters 7,017 0.1%
6.1 Lake 4,959 0.1%
5.9 Waste treatment and disposal 2,841 0.0%
5.6 Utilities 1,940 0.0%
5.1 Intensive horticulture 1,752 0.0%
4.6 Irrigated land in transition 1,158 0.0%
6.4 Channel/aqueduct 874 0.0%
4.1 Irrigated plantation forests 834 0.0%
3.5 Seasonal horticulture 77 0.0%

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Wildlife

Kingdom
Class
Native Introduced Wetland
indicator
species
Rare or
threatened
species
All
TOTAL 9,387 1,248 811 458 10,635
Animals 1,522 58 398 155 1,580
Mammals 155 21 10 26 176
Birds 612 14 103 64 626
Reptiles 216 3 25 25 219
Amphibians 64 1 27 16 65
Lobe-finned fishes 1 0 1 1 1
Ray-finned fishes 94 14 106 6 108
Cartilaginous fishes 31 0 31 4 31
Lampreys 2 0 2 1 2
Insects 323 5 93 4 328
Malacostracans 21 0 0 8 21
Arachnids 1 0 0 0 1
Snails 2 0 0 0 2
Bacteria 112 0 0 0 112
Chromists 146 0 0 0 146
Fungi 1,986 3 0 0 1,989
Plants 5,614 1,187 413 303 6,801
Protozoans 7 0 0 0 7

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-ibra-bioregion

This page should be cited as:

Department of Environment, Science and Innovation, Queensland (2013) South Eastern Queensland (SEQ) IBRA bioregion — facts and maps, WetlandInfo website, accessed 14 April 2025. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/facts-maps/ibra-bioregion-south-eastern-queensland-seq/

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