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Great Barrier Reef pre-clear wetland system extents

Definition of Great Barrier Reef

based on wetland mapping version 7.0 metadata

Display areas in
Pre-clear wetland system extent by Great Barrier Reef metadata
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Great Barrier Reef Total area
(ha)
Wetland area by system Total
wetland area
(ha)
intertidal (saltmarsh, saltflats, mangroves) (natural) lacustrine (natural) palustrine (natural) riverine
Total 136,168,415 1,387,112 59,869 1,142,507 2,404,920 4,994,408
Great Barrier Reef catchments, reef and islands 51,245,150 499,384 21,981 390,755 802,218 1,714,338
Paddock to Reef (P2R) report cards 42,291,163 431,307 18,938 374,472 801,000 1,625,717
Water Quality Improvement Plans 42,632,103 456,421 18,951 377,280 801,702 1,654,353

Note that these totals may be lower than the Queensland totals due to incomplete coverage of Great Barrier Reef.

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.


This page should be cited as:

Department of Environment, Science and Innovation, Queensland (2022) Great Barrier Reef pre-clear wetland system extents, WetlandInfo website, accessed 8 May 2025. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/ecology/statistics/wetland-extent-pre-clear/great-barrier-reef.html

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