Written by: Reidun Lilleholt Kraugerud for the CtrlAQUA Annual Report 2021 The fact that there are few salmon lice in semi-closed fish farms is the main argument for these farms having a future, says Are Nylund, a professor in fish health at the University of Bergen. Nylund has been researching pathogenic organisms in closed fish farms…
Nofima scientists studied the effect of LED light on salmon performance in closed-containment recirculated aquaculture systems. So far, the existing lighting conditions for salmon in recirculating aquaculture systems (RAS) appear to be safe in terms of growth and mortality rates. “However, we still know little about how the light affects salmon physiology and how they…
Scientists have determined that salmon post-smolts tolerate similar level of ozone in brackish water as they do in freshwater. Ozone is a strong oxidant commonly used for improving water quality and disinfecting pathogens in freshwater fish farms. When ozone reacts with certain constituents of seawater, however, toxic byproducts can severely impact the health of fish…
