Researchers Help With Breakthroughs In Salmon Farming

Matthew Stromberg, environmental engineering Ph.D. student, was recently mentioned in the Science article, "OCEANS AWAY: Is raising salmon on land the next big thing in farming fish?" by Erik Stokstad. Stomberg is co-advised by Dr. Ghosh, professor of chemical, biochemical, and environmental engineering and Dr. Zohar, professor of marine biotechnology. 

The article explores the emerging trend of land-based fish farming, specifically focusing on Superior Fresh, a Wisconsin-based farm that raises Atlantic salmon. The farm's unique approach to raising fish in tanks and integrating them with its greenhouse operations has attracted attention from investors and customers looking for locally produced and high-quality fish.

The article highlights the challenges associated with land-based fish farming, including the high costs of equipment and infrastructure, potential environmental impacts, and the need to address fish health and welfare. To address some of these challenges, the farm has implemented various innovative practices, such as using ultraviolet light to purify water and using antisense RNA to prevent salmon from sexually maturing and ensuring larger filets.

Stromberg is testing a system that uses ultraviolet light and titanium electrodes to break down water-borne chemicals that can give land-reared salmon a muddy flavor. Their research is crucial in ensuring the long-term success of land-based fish farming.