• General information
• Fishing fees and licenses
• Fishing for anadromous salmonids
• Inland Fishing
• Angling in the sea
• Fish diseases
• Avoid spreading of fish species
• Rights of passage on uncultivated earth
• Special rights for children
• Important rules to remember

Fish diseases

Diseases and parasites represent a serious threat to fishery resources. One of the greatest threats is the salmon parasite Gyrodactylus salaris, which has spread to more than 35 Norwegian watercourses. Gyrodactylus salaris is a 1/2 mm long parasite. Thousands of this parasite are attached to the bodies of infected salmon fry, leading to serious depletion of salmon stocks. The Directorate for Nature Management is working toward extermination of the parasite in infected watercourses. Furunculosis is another serious fish disease which has spread with fish escaping from fish farms. The spread of disease and parasites with escaped farmed fish has been the source of enormous problems for wild fish populations. Crayfish plaque is caused by a fungus found on crayfish. The disease is easily spread and destroys entire populations. Because of the highly contagious nature of the disease, crayfishing is largely prohibited in most areas.

In order to avoid contributing to the spread of disease, exercise caution and follow these simple rules:

1. All fishing tackle should be dried before use in a new watercourse.
2. Fishing tackle used in a watercourse suspected of containing contagious fish disease should be disinfected. Contact veterinary.
3. Never empty buckets or other containers directly into a watercourse.
4. Fish should never be gutted or cleaned at any site other than their place of capture.
5. Dispose of all guts and other offal by burying in a suitable place.
6. Introductions of fish, crayfish or other organisms living in water are prohibited.
7. When discovering diseased or dead fish, report your observations to local veterinary authorities.