Spatial distribution and morphology of the Halimeda bioherms of the Great Barrier Reef, Australia

Sediment derived from the decomposition of Halimeda algae is a major contributor to the tropical back-reef carbonate depositions. Halimeda bioherms occur extensively on the northern Great Barrier Reef (GBR), Australia. This dataset represents the most complete, high-resolution spatial mapping of the extent of northern GBR Halimeda bioherms, based on airborne lidar and multibeam echosounder bathymetry data. Three distinct morphological sub-types are described: reticulate, annulate, and undulate. The northern GBR bioherms cover an area of 6095 km2, three times larger than previous estimates.

Data and resources

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SeamapAus_QLD_Halimeda_bioherms_2016

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SeamapAus_QLD_Halimeda_bioherms_2016

MAP - Halimeda bioherms of the northern GBR

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Associated publication

McNeil, M.A., Webster, J.M., Beaman, R.J. et al. New constraints on the spatial distribution and morphology of the Halimeda bioherms of the Great Barrier Reef,…

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Additional information

Temporal extent	2016-08-24 – 2016-08-24
Date (publication)	2023-04-24
Status	completed
Update frequency	asNeeded
Metadata language	en
License	Creative Commons Attribution 4.0
Source metadata	ISO 19115 XML
Last updated	2026-11-05
Created	2026-11-05
API	package_show