Scallop Mortality and Seismic Survey Impacts in Bass Strait, Australia

Three field-based methods were used to assess the potential impacts of marine seismic surveys on scallops in the Bass Strait, Australia. The study includes dredging and Autonomous Underwater Vehicle (AUV) imagery of two scallop species before, two months after, and ten months after a 2015 survey, as well as MODIS satellite sea surface temperature data from 2006–2016. Results show no evidence of scallop mortality from the 2015 survey but link a 2010 mortality event to a thermal spike coinciding with a seismic survey.

Use Cases

• Modeling the relationship between seismic survey activity and scallop mortality based on paired before/after field observations.
• Analyzing long-term sea surface temperature anomalies in the Bass Strait based on the 2006–2016 MODIS satellite data.
• Comparing sub-lethal effects on scallop species (Pecten fumatus, Mimachlamys asperrima) using AUV imagery and dredging survey data.
• Informing regulatory assessments for marine seismic survey applications based on the study's ecologically realistic field methods.

Strengths

• Data collection paired field-based components (dredging and AUV imagery) as a failsafe against field work challenges.
• Study incorporates a decade of MODIS satellite data (2006–2016) for environmental context.
• Research design includes observations before, two months after, and ten months after a seismic event for temporal analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset scale are unknown, which may limit suitability assessment.
• The description notes sub-lethal effects on scallops cannot be excluded, indicating potential data gaps.

Provenance

Source

Geoscience Australia Data

Collection Method

Field-based methods including dredging, Autonomous Underwater Vehicle (AUV) deployment, and analysis of MODIS satellite remote sensing data.

Time Range

Primary field study around a 2015 seismic survey; satellite data covers 2006–2016.

Freshness

Last updated 2026-03-25 17:48:15.435662; freshness should be verified.

Geography

Bass Strait, Australia