Australian Marine Zone Management: Seascape Maps for EPBC Act Implementation

Geoscience Australia's biophysical data provides 100% spatial coverage of Australia's Exclusive Economic Zone using multivariate statistical methods. This information, including bathymetry, geomorphology, and sediment properties, serves as a proxy for seabed biodiversity to support marine conservation planning under the EPBC Act. The dataset supports the design of a national representative system of Marine Protected Areas, with 13 already nominated for the southeast region in 2006.

Use Cases

• Identifying conservation priorities based on integrated seascape maps of bathymetry, geomorphology, and sediment properties.
• Predicting the distribution of biodiversity in Australia's EEZ using multivariate statistical methods.
• Providing certainty for petroleum exploration by classifying seafloor types within multiple-use areas.
• Supporting the implementation of the EPBC Act through science-based marine zone management.

Strengths

• Provides 100% spatial coverage of Australia's Exclusive Economic Zone.
• Based on objective, multivariate statistical methods, offering a reproducible science-based approach.
• Integrates multiple layers of spatial data including bathymetry, geomorphology, acoustic properties, sediment properties, slope, and sediment mobilisation.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing on Australia's EEZ.

Provenance

Source

Australian Ocean Data Network

Collection Method

Biophysical information compiled by Geoscience Australia from various spatial data layers.

Time Range

References data from 2006 and a target for MPA protection by 2012.

Freshness

Last updated 2026-05-05 00:21:38.898887; freshness should be verified.

Geography

Australia's Exclusive Economic Zone (EEZ), with specific mention of the southeast region.