Recirculating aquaculture systems (RAS)

The head of a Ukrainian company that specialises in the design and implementation of RAS facilities is determined to bring his team out of Russia to find work in Europe.

The Blue Impact Fund aims to raise up to £75 million to catalyse the growth of truly sustainable aquaculture in the UK – with a focus on projects including the production of seaweed, bivalves and land-based shrimp.

David Dupaul-Chicoine recently established an urban RAS business in Montreal with the capacity to produce up to 30 tonnes of Arctic char a year. Coupled with an innovative and ever-evolving business plan, Opercule is an intriguing addition to North American aq…

Emerging research has shown that nutraceuticals in aquafeed can delay the onset and progress of clinical signs of amoebic gill disease (AGD) in farmed Atlantic salmon.

According to Ohad Maiman, founder and CEO of The Kingfish Company, they can indeed – although he warned that sustainability is by no means “a free pass” to profitability.

Mark Bowkett, CEO of Aquamonitrix, explains the dangers of elevated nitrogen levels in RAS facilities and why he believes that the company’s novel sensor can help to not only prevent mass mortalities, but also help to improve feed conversion ratios and growth …

Results of a new study by researchers at Nofima suggest that peracetic acid can safely be used as a water disinfectant in recirculating aquaculture systems (RAS) that contain salmon parr.

Alaa and Medhat Elokda are producing tilapia and mullet in a high-density RAS facility which they have designed and built themselves.

New analysis suggests that pond aquaculture could be the tilapia industry’s best way to profitably intensify production – and that, other than for a few notable exceptions, recirculating aquaculture systems (RAS) will remain relatively unprofitable in the near…

Pond-based tilapia farmers could benefit from adopting a novel method for intensifying the production of carp and other species that has recently been successful in Eastern Europe.

Vedrana Tomljanovic works as the lead aquaculturist for FTN AquaArt AG, one of Switzerland's leading indoor aquaculture firms.