title: The spatial distribution of Dactylogyrus amphibothrium on the gills of ruffe Gymnocephalus cernua and its relation to the relative amounts of water passing over the parts of the gills.
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000469:parasitology*; D005399:Fishes; D005618:Fresh Water; D005880:Gills / Q000469:parasitology* / Q000502:physiology; D012212:Rheology; D014200:Trematoda; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*