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North American RAS leaders adopt French water treatment systems

Water quality Technology & equipment Recirculating aquaculture systems (RAS) +7 more

Three of North America’s flagship RAS farms have adopted technology from French water treatment and disinfection specialist Bio-UV Group, following their partnership with the Boston-based aquaculture technology provider Innovasea 12 months ago.

A shoal of fish.
Blue Ocean Mariculture is one of Bio-UV's new customers

© Blue Ocean Mariculture

According to the French firm, the partnership has enabled Bio-UV Group’s systems to be rapidly deployed through Innovasea’s established footprint and technical expertise in recirculating aquaculture systems (RAS). 

Among the early adopters are Santomar, a regenerative aquaculture pioneer based in La Paz, Baja California Sur, Mexico, which is known for its commitment to sustainability and the cultivation of marine species such as totoaba and red snapper. The company has adopted Bio-UV systems to disinfect water destined for its larval hatcheries. The installation ensures pathogen-free conditions without harming the live feed organisms essential to early-stage fish health

At freshwater a US state hatchery, the transition to RAS technology required robust disinfection that could withstand cold-season variations in water temperature. Bio-UV’s ultraviolet reactors were selected for their reliability and efficiency, supporting both conservation and stock-repopulation efforts. 

Meanwhile, in Kailua-Kona, Hawaii, Blue Ocean Mariculture has implemented a complete recirculating system featuring Bio-UV reactors to protect its Hawaiian kanpachi broodstock from parasites and disease. The move marks a significant operational shift from flow-through to closed-loop aquaculture and reinforces Blue Ocean’s sustainability credentials. The installation is due to be fully operational this spring. 

“The results speak for themselves,” said Simon Marshall, deputy general manager of Bio UV Group. “Our technologies have proved their worth across a variety of aquaculture environments, and our partnership with Innovasea has provided the reach and insight needed to serve this vital and growing sector. These first deployments mark a strategic foothold in North America, and we’re already working on further projects that will extend our impact.” 

Both companies now confirm that additional projects are in the pipeline.