WP3 - Remote Sensing Scallop Evaluation Scottish Inshore Fisheries - - PowerPoint PPT Presentation

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WP3 - Remote Sensing Scallop Evaluation Scottish Inshore Fisheries - - PowerPoint PPT Presentation

Mar 28, 2024 277 likes •395 views

WP3 - Remote Sensing Scallop Evaluation Scottish Inshore Fisheries Conference - 27 th April 2017 European Maritime & Fisheries Fund Remote Sensing Scallop Evaluation The project will assess the potential of novel, automated technologies

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European Maritime & Fisheries Fund

WP3 - Remote Sensing Scallop Evaluation

Scottish Inshore Fisheries Conference - 27th April 2017

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Remote Sensing Scallop Evaluation

The project will assess the potential of novel, automated technologies for the collection of scallop stock data.

  • 1. Desk-based review of current state-of-art for remote survey

methods for scallop resources

  • 2. Limited sea-trial of three methodologies that best represent

the different approaches currently available for remote survey

  • 3. Evaluation of tests and methods with respect to industry

capacity and cost effectiveness

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The Team

  • USTAN - Dr Richard Bates, Dr Melanie

Chocholek, Prof Stephen Buckland

  • SAMS – Dr John Howe, Dr. Clive Fox, Dr. Chris

Allen, Mr Colin Abernethy, Ms Estelle Dumont: AUV technician.

  • Shearwater Geophysical – Dr Neil Jones
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  • Task 1- desk-based review of current state-of-art for remote survey and

analysis methods

  • Task 2 - sea-trial

– towed systems - Sidescan Sonar, multibeam sonar – autonomous systems – Gavia AUV – buoyed systems – Walkaway Velocity Analysis

  • Task 3 - ground truth sampling of site using standard methods of analysis

to include diver-based survey, towed-video survey and UAV still/video survey.

  • Task 4 – processing of remote sensing results using standard software

approaches

  • Task 5 – statistical analysis of results. This task will include identifying any

adjustments required to correct for scallops unavailable for detection by any given method. A cost-benefit analysis will also be performed at this stage to identify how accuracy and precision balance against the costs of each survey method.

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Test Sites – Firth of Lorne

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Test Sites – Firth of Lorne

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Technology

Remote Sensing

– Multibeam, multi-frequency sonar – Bathymetric sidescan sonar – AUV with sonar and camera

Ground Truth

– Video/Still diver and dropdown

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Norbit iWBMSc (compact) Wideband Multibeam Sonar

400kHz w/80kHz BANDWIDTH (FREQ. AGILITY 200-700kH

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Gavia Offshore Surveyor AUV

  • 500kHz Geoacoustics sonar
  • Grasshopper benthic colour camera and

strobe

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