Deep-Sea Bio-Physical Variables for Benthic Assemblages on Lord Howe Rise

42 towed-video stations captured 32 hours of seabed video and 6,229 photographs, generating 3,413 characterizations of physical and biological variables across the Lord Howe Rise and Gifford Guyot. The dataset, managed by the Australian Ocean Data Network, includes multibeam acoustic surveys, sediment samples, and biological samples from 36 stations spanning depths of 250 to 2,200 meters. It was last updated on 2026-06-17.

Use Cases

• Predict benthic assemblage composition based on substratum type and depth correlations mentioned in the description
• Model habitat suitability for cold-water corals and sponges using geomorphic classification maps
• Assess the effectiveness of physical data as surrogates for biological diversity in deep-sea conservation planning

Strengths

• Includes 3,413 seabed characterizations derived from 32 hours of video and 6,229 photographs
• Covers a combined depth range of 250 to 2,200 meters across two adjacent study areas
• Integrates multiple data types: multibeam surveys, video, photographs, sediment, and biological samples

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 a specific region of the southern Pacific Ocean

Provenance

Source

Australian Ocean Data Network

Collection Method

Multibeam acoustic surveys, towed-video stations, sediment and biological sampling

Freshness

Last updated 2026-06-17 01:16:28.957203; freshness should be verified

Geography

Lord Howe Rise and Gifford Guyot in the southern Pacific Ocean