Carnarvon Shelf Benthic Survey Report and Data

CERF Marine Biodiversity Hub's survey of the Carnarvon Shelf, Western Australia, was conducted in August and September 2008. The collaborative effort between the Australian Institute of Marine Science and Geoscience Australia collected co-located physical and biological data across three primary study areas. The report details survey methods, initial data interpretations, and examples of encountered biota.

Use Cases

• Analyze relationships between multibeam sonar bathymetry/backscatter data and benthic community types identified in towed video.
• Model sediment composition from grab samples as a predictor for plankton sample distributions.
• Use wave and current measurement time-series to interpret physical drivers of benthic community structure at Mandu, Point Cloates, and Gnaraloo sites.
• Classify biota and benthic communities from stills photography and underwater video footage.

Strengths

• Data collected from three strategically selected study areas representative of broader benthic environments.
• High-quality, accurately co-located physical and biological datasets for surrogate testing.
• Survey conducted by authoritative institutions AIMS and Geoscience Australia.

Limitations

• Sample size and row counts for specific data types (e.g., sediment grabs, video transects) are unknown.
• Additional processing is required for most physical and biological data before comparative analysis.
• Data is from a single survey in 2008, limiting temporal analysis.

Provenance

Source

Australian Ocean Data Network, originating from CERF Marine Biodiversity Hub survey.

Collection Method

Field survey aboard RV Solander employing multibeam sonar, sediment grabs, towed video, stills photography, and plankton sampling.

Time Range

August-September 2008

Freshness

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Geography

Carnarvon Shelf, Western Australia, specifically Mandu, Point Cloates, Gnaraloo, and near the Muiron Islands.