Scallop Population and Sea Temperature Responses to Seismic Surveys

Field-based research assesses the potential impact of marine seismic surveys on scallop populations in the Bass Strait, Australia. The study combines dredging surveys, Autonomous Underwater Vehicle imagery, and MODIS satellite-derived sea surface temperature data from 2006 to 2016. Researchers from the Australian Ocean Data Network published the findings in 2018.

Use Cases

• Correlate sea surface temperature anomalies from MODIS satellite data with reported scallop mortality events.
• Compare scallop density and health metrics from dredging surveys conducted before, two months after, and ten months after a seismic survey.
• Analyze Autonomous Underwater Vehicle imagery to detect sub-lethal effects or habitat changes in scallop beds post-survey.
• Model the overlap between thermal spikes in sea surface temperature and the operational dates of specific seismic surveys.

Strengths

• Data spans a 10-year period (2006-2016) for sea surface temperature analysis.
• Study employs three distinct field methods (dredging, AUV, satellite remote sensing) for cross-validation.
• Research investigates two scallop species (Pecten fumatus and Mimachlamys asperrima).

Limitations

• Specific row counts, column details, and sample sizes for field surveys are not provided.
• Findings are geographically limited to the Bass Strait region of Australia.
• The study concludes no direct mortality link, leaving sub-lethal effects as an unquantified uncertainty.

Provenance

Source

Australian Ocean Data Network, derived from a study published in Marine Pollution Bulletin.

Collection Method

Field data collection via scallop dredging, Autonomous Underwater Vehicle imagery, and analysis of MODIS satellite remote sensing data.

Time Range

Sea surface temperature data from 2006-2016; field surveys conducted around a 2015 seismic event.

Freshness

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Geography

Bass Strait, Australia.