1. North Atlantic Salmon Conservation Organization (NASCO) Available: http://www.nasco.int/.Accessed 2013 Jun 28.
2. Heggberget TG, Johnsen BO (1982) Infestations by Gyrodactylus sp. of Atlantic salmon, Salmo salar L., in Norwegian rivers. J Fish Biol 21: : 15–26.
3. Johnsen BO, Jensen AJ (1986) Infestations of Atlantic salmon, Salmo salar, . by Gyrodactylus salaris in Norwegian riversJ Fish Biol 29: : 233–241.
4. Johnsen BO, Jensen AJ (1992) Infection of Atlantic salmon, Salmo salar L., by Gyrodactylus salaris Malmberg, 1957, in the river Lakselva, Misvær in northern Norway. J Fish Biol 40: : 433–444.
5. Mo TA (1994) Status of Gyrodactylus salaris problems and research in Norway. In: Pike AW, Lewis JW, editors. Parasitic Diseases of Fish. Great Britain: Samara Publishing Ltd., Dyfed, Wales, UK, p. 43–58.