Introduction of mammal detection system

Gemini SeaTec is a mammal detection system which provides a valuable tool in the detection of marine life around subsea turbines. Tritech's subsea sonars have been deployed on marine current structures since 2008 when the company made its first step into the offshore renewables sector. Tritech has now developed its real-time multibeam imaging sonar technology for this market.

The Gemini SeaTec system uses Tritech's industry standard Gemini 720id multibeam sonar and its image detection software. The software subsequently provides an early warning of the presence of sea mammals in the vicinity of marine current turbine structures. The Gemini SeaTec provides real-time monitoring of marine wildlife, allowing the operator to take corrective action as required. The logged data can be stored for analysis and used for environmental assessment as part of the current turbine development process.

 The Gemini SeaTech is currently installed on SeaGen, a tidal turbine, in Strangford Lough, County Down, Northern Ireland. Tritech has worked closely with the commercial arm of the Sea Mammal Research Unit (SMRU Ltd) at St. Andrews University and tidal energy company Marine Current Turbines (MCT) to help develop the Gemini SeaTec system.

Further applications for Gemini SeaTec include; survey of pre/ post cable lay survey operations, subsea monitoring and inspection and scour monitoring.