Video Surveys of Long-Spined Sea Urchin Barrens Habitat, South Bruny Island, Tasmania

13 regions along the east coast of Tasmania were surveyed with a towed underwater video system to estimate the spatial extent of Centrostephanus rodgersii barrens. This dataset focuses on the South Bruny Island region and its three subsites: Mangana Bluff, Bay of Islands, and Cape Conella. The data is provided by the Australian Ocean Data Network and was last updated in July 2026.

Use Cases

• Estimate the spatial extent of sea urchin barrens based on video survey data.
• Monitor changes in rocky reef habitat structure over time at specific subsites.
• Model the distribution of Centrostephanus rodgersii along the Tasmanian coast.
• Assess the ecological impact of sea urchin grazing on benthic communities.

Strengths

• Surveys were conducted at 13 distinct regions, each with 3 subsites, providing a structured sampling framework.
• Data collection used a towed underwater video system, likely providing visual records of habitat.
• The dataset is focused on a specific geographic region (South Bruny Island) and its three named subsites.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Spatial extent estimated by surveying rocky reef habitat with a towed underwater video system.

Freshness

Last updated 2026-07-16 11:59:37.613952; freshness should be verified.

Geography

South Bruny Island, eastern Tasmania, specifically subsites Mangana Bluff, Bay of Islands, and Cape Conella.