Marine Population Connectivity Modeling for Offshore Infrastructure in Gippsland

A desktop study by Esso Australia Pty Ltd modeled the influence of 19 platforms and 32 subsea pipelines (total length approx. 738 km) on population connectivity for selected marine biota. The study used biophysical models combining 3D ocean current dynamics with larval biology data for three fish and two invertebrate species in the Gippsland region of Bass Strait. The dataset was published via the Australian Ocean Data Network.

Use Cases

• Model connectivity between natural reef habitats and offshore infrastructure using species-specific larval dispersal parameters.
• Compare the relative influence of individual platforms versus pipelines on population connectivity metrics.
• Estimate whether infrastructure provides a net positive or negative contribution to metapopulation dynamics for the five indicator species.
• Analyze the role of habitat created by 19 platforms and 738 km of pipelines on connectivity patterns in Bass Strait.

Strengths

• Models connectivity for five specific indicator species (three fish, two invertebrates).
• Incorporates data from 19 offshore platforms and 32 subsea pipelines spanning approximately 738 km.
• Uses a biophysical modeling approach combining 3D ocean current dynamics with larval biology.

Limitations

• Study scope is limited to the Gippsland region of Bass Strait, southeast Australia.
• Results are model-based estimates from a desktop study, not direct observational measurements.
• Focuses on a select set of five species, not the full regional ecosystem.

Provenance

Source

Australian Ocean Data Network

Collection Method

Desktop study utilizing biophysical modeling.

Time Range

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Freshness

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Geography

Gippsland region of Bass Strait, south-eastern Victoria, Australia.