Optimized UVC-based antifouling system for moored applications

Biofouling, the unwanted accumulation of marine organisms on submerged structures, significantly compromises the quality of scientific data acquisition. A promising approach to mitigate biofouling on marine sensors is the use of UVC-based antifouling systems. However, existing systems often suffer f...

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Bibliographic Details
Main Authors: Robert Mars, Bennet Krebs, Mathis Bjoerner, Marialena Christopoulou, Oliver Zielinski
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-07-01
Series:Frontiers in Marine Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2025.1625587/full
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Summary:Biofouling, the unwanted accumulation of marine organisms on submerged structures, significantly compromises the quality of scientific data acquisition. A promising approach to mitigate biofouling on marine sensors is the use of UVC-based antifouling systems. However, existing systems often suffer from low efficiency, leading to high power consumption. This study presents a highly energy-efficient UVC-based antifouling system with a twentyfold increase in energy efficiency compared to previous commercial designs. The system was tested on moored CTDs and fluorometers in the southern Baltic Sea at a depth of 2 meters. Conductivity readings remained within the manufacturer’s specifications for 237 days, demonstrating the effectiveness of the approach in maintaining sensor performance. Based on in-situ measurements in coastal southern Baltic Sea water this study presents a formula to estimate UVC intensity in distances up to 50 cm in order to optimize the settings of UVC-based antifouling systems.
ISSN:2296-7745