Benthic Community Structure on the George V Shelf, East Antarctica

Underwater video footage from the 2007/2008 CEAMARC voyage analyzes the physical and biological characteristics of seafloor communities across the George V Shelf. The data maps modern shelf communities, which largely represent colonization over the past 8-12 thousand years following the last glaciation. The study was contributed by the Australian Ocean Data Network.

Use Cases

• Modeling benthic habitat distribution based on physical factors like water depth and sediment type mentioned in the description.
• Analyzing community recovery stages based on the recurrence of iceberg scouring over years to centuries.
• Mapping the spatial contrast between filter-feeding and deposit-feeding communities linked to nutrient supply from different water masses.
• Investigating potential colonization sources and refugia, such as the Mertz and Adélie Banks, for Antarctic shelf communities.

Strengths

• Data is derived from a specific scientific voyage (CEAMARC, 2007/2008), providing a clear temporal anchor.
• The description explicitly links community structure to multiple physical processes (iceberg scouring, current regimes, deposition) and a long-term colonization timeframe (8-12ka).

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/temporal bias inherent to data_gov_au.

Provenance

Source

Australian Ocean Data Network

Collection Method

Analysis of underwater video footage collected during the CEAMARC voyage.

Time Range

Primary data collection occurred during the 2007/2008 voyage; modern communities represent colonization over the past 8-12 thousand years.

Freshness

Last updated 2026-06-17 01:30:36.549454; freshness should be verified.

Geography

George V Shelf, East Antarctica.