Bicheno Region Urchin Barrens Scored from AUV Imagery, 2011-2016

Scored time-series data from Autonomous Underwater Vehicle surveys in the Bicheno region of Tasmania between 2011 and 2016. The dataset, associated with a 2020 PLOS ONE article, tracks the presence of Centrostephanus rodgersii urchin barrens inside and outside the Governor Island Marine Reserve. It includes depth and rugosity measures for each image, subsetted to every fifth image to avoid overlap.

Use Cases

• Modeling spatio-temporal trends in urchin barren presence based on the scored time-series.
• Comparing ecological outcomes inside versus outside a marine reserve based on the surveyed sites.
• Analyzing the relationship between benthic habitat complexity (rugosity) and urchin barren occurrence.
• Assessing the resilience of no-take marine reserves to species range extension.

Strengths

• Multi-year time-series spanning 2011 to 2016, enabling trend analysis.
• Direct comparison between sites inside and outside a marine reserve.
• Includes derived environmental variables like depth and Vector Rugosity Measure.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Imagery was subsetted to every fifth image, which may reduce spatial resolution.

Provenance

Source

Australian Ocean Data Network

Collection Method

Scored analysis of Autonomous Underwater Vehicle (AUV) imagery.

Time Range

2011-2016

Freshness

Last updated 2026-06-16 17:53:27.201438; freshness should be verified.

Geography

Bicheno region, east coast of Tasmania, including Governor Island Marine Reserve and nearby sites.