Few lice, but major R&D efforts are still required regarding closed sea-based facilities

Written by: Reidun Lilleholt Kraugerud for the CtrlAQUA Annual Report 2020 Cermaq has now started the third round of salmon production in closed containment systems, without having to delouse. In the neighbouring net pen, which has a traditional net system, they have had to delouse several times. It is precisely the combination of a semi-closed containment…

New knowledge about disinfection of RAS facilities

Written for Nofima by Jon-Are Berg-Jacobsen New research shows that land-based recirculation facilities for salmon farming in Norway and in North America are disinfected in different ways. An overall picture of current practice may provide knowledge that increases safety in a rapidly growing industry. Nofima scientist Carlo C. Lazado and Chris Good of The Conservation…

A vegetarian with a PhD in fish

By: Per Haakon Stenhaug at Krüger Kaldnes: telephone +47 415 77 368 The Process Engineer Sharada Navada (30) does not eat fish but has recently completed a PhD in “salinity acclimation strategies for nitrifying bioreactors in recirculation aquaculture systemes”. Her sensational results have already been applied by the aquaculture industry. Normally, the 30-year-old works at the…

“Smolt production in the future” goes digital

Audience from all over the world are virtually welcome to the aquaculture town of Sunndalsøra and the webinar «Smolt production in the future» 21 October. “This year we are hosting a webinar due to the covid-19 situation instead of our traditional conference. But we hope you are able to join us!”, says webinar’s scientific coordinator…

Documenting effect of light on salmon performance

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…

Another piece in place about the salmon’s requirements in closed facilities

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…

A doctoral degree outside the norm

Written by: Reidun Lilleholt Kraugerud for the CtrlAQUA Annual Report 2019 An experienced researcher will earn his Doctoral degree based on long term and new in-depth industry research. John Davidson works at the Freshwater Institute, located in West Virginia, USA. During more than twenty years as a researcher there, he has an established track record but…

Two new technology partners

Written by: Reidun Lilleholt Kraugerud for the CtrlAQUA Annual Report 2019 CtrlAQUA has welcomed two new technology suppliers as partners. While the contribution from Atlantium from Israel is to work on treating intake water with UV, the contribution from the Norwegian CreateView is machine learning and artificial intelligence for improved fish welfare. Atlantium Getting Atlantium as…

Spotlight on a deadly gas, disease and puberty

During the lifetime of a Centre for Research-Based Innovation (SFI), there is a high probability that new challenges emerge and must be resolved in order to achieve the goal. In the case of CtrlAQUA, the ambition is to make closed-containment systems for salmon up to one kilogram into off-the-shelf systems by 2023. Written by: Reidun…

Rapid implementation of innovation

Even before the results of the CtrlAQUA project about optimal production regimes appeared in any report, Grieg Seafood was implementing the knowledge at its RAS facilities in Canada. Written by: Reidun Lilleholt Kraugerud for the CtrlAQUA Annual Report 2019 ”This knowledge from the CtrlAQUA project concerns which light regimes and water qualities provide the best…