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For North Norway and Salaks, the challenge with salmon louse is not as extensive as other areas along the coast. This is due to the low water temperatures. However, we do different measures to prevent and treat to get the number of louse equal to zero. At each location, the fish are checked for possible salmon louce in accordance with established routines from the Norwegian Food Safety Authority. If necessary, the fish is treated against louse.

Salmon breeders must pick the louse on a representative range of salmon from the entire fishing facility every week. The figures are reported and are available for public inspection.

Public inspection of salmon louse, treatment and fish diseases at fish farms

On June 22, 2016, the Norwegian Food Safety Authority, in collaboration with Barentswatch, launched a new map tool service that shows weekly overview of salmon louse, treatment and fish diseases at all breeding sites along the Norwegian coast. The service is available to all. Through an interactive map, you will receive a weekly overview of salmon louse, measures against salmon louse and diseases. In addition, you get information about the companies and the type of permission they have. The online service displays updated data as they come in daily, with the option to scroll backwards per week until 2012.

Sonic Norway Ultrasound

Sonic Norway has been working for two years to develop a system based on ultrasound, which will break the early stages of salmon louse. The ultrasound system works in a way where high-frequency audio will keep away louse. There are four sensors standing on the salmon cage and transmitting high frequency sound waves that will break the smallest louse. The system has been tested at Sinkaberg Hansen, but Salaks is the first company to use it in full scale farming. The location Mohamn, located in Dyrøy, has launched ultrasonic equipment in all nine cages. Louse counts have been completed on a weekly basis and ultrasound equipment has been on a continuous basis. After completion of the agreed trial period, data is gathered and systematized for a descriptive analysis. This will describe how the development of louse has been during the trial period on this location. Louse development at this location is compared to neighborhood locations and will be looked at against infection pressures calculated against the individual site. Based on this test, indications can be given as to whether ultrasound can have an effect on the louse. 

Norwegian Weather Protection AS louse skirt

Salaks AS has also used louse skirt that are a preventive measure to avoid louse. The skirt is mounted in the upper water layer - 5 to 10m down, and directs the flow of water past the cage. The louse is in this height, and therefore the skirt will shut the louse out of the cage. The skirt can be mounted both on the outside and inside of the rings in the cage. In addition to a protection against salmon louse, the skirt also shields against other undesirable particles, and it gives less dirt / contamination inside the skirt. Salaks AS uses NWP louse skirts that is the strongest in the market - for longer life and better economy. The skirts are produced in Norway and have the EU REACH environmental standard.

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