Australian Marine Bioregionalisation and Seascape Maps for Biodiversity Prediction

Geoscience Australia created this dataset to support Australia's marine protected area program under the Environmental Protection and Biodiversity Conservation Act. It integrates seabed bathymetry, fish diversity, and other biophysical variables to produce a map of geomorphic features and a Benthic Bioregionalisation subdividing Australia's Exclusive Economic Zone into 41 bioregions, including 24 provinces. The dataset was derived from existing data available around 2005 to provide surrogates for seabed biodiversity distribution.

Use Cases

• Designing marine protected area networks based on the 41 defined bioregions.
• Predicting seabed biodiversity distribution based on integrated seascape maps.
• Analyzing habitat characteristics on the continental margin based on variables like seabed slope and sediment properties.
• Supporting regional marine planning decisions based on surrogates for direct biodiversity data.

Strengths

• Derived from a national-scale Benthic Bioregionalisation covering Australia's entire Exclusive Economic Zone.
• Integrates multiple data layers, including bathymetry, fish diversity, ocean primary production, and seabed sediment properties.
• Subdivides the marine area into 41 distinct bioregions, including 24 biologically unique provinces.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect temporal bias inherent to its source, with core analysis dated around 2005.

Provenance

Source

Geoscience Australia Data

Collection Method

Integration of existing seabed bathymetry data, fish diversity information, and other biophysical variables to create geomorphic feature maps and a bioregionalisation.

Time Range

Core analysis dated around 2005.

Freshness

Last updated 2026-05-14 03:37:53.979685; freshness should be verified.

Geography

Australia's Exclusive Economic Zone (EEZ).