The Norwegian Environment Agency is responsible for several national environmental monitoring programmes covering both freshwater and marine ecosystems.
The EU is aiming for a 35% share of global ocean observing system by 2035, in support climate forecasting, marine protection, aquaculture, fisheries and other blue economy activities.
Data on the amount of lice on migrating young salmon, sea trout and sea char contributes to the decision-making process as part of the country's "traffic light" system for aquaculture regulation.