Physiology and genetics of fish muscle in aquaculture

Future growth in seafood consumption is predicted to come from aquaculture, and the application of genetics is essential for meeting this demand. Research from St Andrews on the physiology and genetics of fish muscle (2000 – 2012) included the discovery of selection markers for increasing fillet yield and superior texture and underpinned the success of a spin-out company which has grown since 2013 into a mature multi-species aquaculture genetics business trading globally (www.xelect\-genetics.com\). Xelect methods enable aquaculture companies to select for and test for fillets of higher value. From August 2016 to December 2020, Xelect has provided breeding programme management and analytic services with broad reach to 14 countries involving 16 species on behalf of more than 25 companies, including a top six global salmon producer. By improving hatchery management and protecting endemic wild fish stocks from introduced fish, Xelect contributes to improved sustainability and growth of the global aquaculture sector, whilst creating highly skilled employment for a team of 15 people (headcount: 15; FTEs: 15; 11 with PhDs) in the UK.