Nord 2000:7: Nordic manual for the surveillance and diagnosis of infectious diseases in farmed salmonids

analyse microbiologique diagnosis diagnostic disease surveillance enfermedades de los peces enfermedades infecciosas escandinavia exploitation piscicole fish culture fish diseases fish farms infectious diseases maladie des poissons maladie infectieuse microbiological analysis monitoring piscicultura pisciculture salmon saumon scandinavia scandinavie surveillance vigilancia vigilancia de enfermedades