Proliferative epitheliocystis associated with monogenean infection in juvenile seabream Sparus aurata in the north east of Spain

bacteria bacteriose bacterioses bacteriosis branchie branquias enfermedades de los peces epitelio epithelium espagne exploitation agricole explotaciones agrarias farms fish culture fish diseases gills helminthose helminthoses helmintiasis histopathologie histopathology histopatologia maladie des poissons monogenea mortalidad mortalite mortality pagrus pagrus aurata pathogenese pathogenesis piscicultura pisciculture spain trematode infections