Automated mort collector for offshore fish farms

The ROMoC is backed by a self-positioning control algorithm to ensure the entire pen is covered within the given time limit The ROMoC is backed by a self-positioning control algorithm to ensure the entire pen is covered within the given time limit
Industry Database

Dutch subsea technology company Seatools has completed a feasibility and conceptual design study on a Remotely Operated Mort Collector (ROMoC) for offshore fish farms.

The study resulted in a highly automated mort collection system capable of effectively collecting dead fish in large-scale offshore fish farms as currently developed by Seatools’ client, De Maas SMC.

Jan Frumau, managing director at Seatools, said: “The aquaculture industry’s inclination toward increasingly remote and hostile offshore environments begs the development of new technologies characterised by reliability, durability, and solid failure-handling strategies.”

“Thanks to our extensive subsea technology toolbox, multidisciplinary engineering capabilities, and advanced control engineering capabilities, we are able to deliver smart and cost-efficient aquaculture solutions, such as the fish farm cleaning solution for De Maas SMC.”

A key requirement – a 100% coverage of the fish pen surface within a 24-hour time span – was of critical importance during the design process.

The design is backed by a self-positioning control algorithm to ensure the entire pen is covered within the given time limit.

In addition to the pen coverage design criterion, several other key criteria had to be met.

Niels Haakman, project manager, said: “Next to a 100% coverage of the fish pen surface, the concept had to have a minimal impact on the operations and design of the offshore fish farm. This meant the system had to come with a minimum footprint, weight, and required installed power.2

“Furthermore, the design’s burden on the farm’s primary operations and setup are kept at a minimum. Which is expressed by – among others – the fact that the collector can run without requiring any operator attention for up to 12 hours on end.”

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