Experimental pathogenicity in rainbow trout, Oncorhynchus mykiss (Walbaum), of two distinct morphotypes of long-spined Saprolegnia isolates obtained from wild brown trout, Salmo trutta L., and river water

1. Fregeneda Grandes, J.M.
2. Fernández Díez, M.
3. Aller Gancedo, J.M.