title: Development of infections of Gyrodactylus colemanensis Mizelle and Kritsky, 1967 (Monogenea) and the effect on fry of Salmo gairdneri Richardson.
abstract: The development of infections of Gyrodactylus colemanensis Mizelle and Kritsky, 1967 (Monogenea) and their effect on fry of Salmo gairdneri Richardson are examined experimentally. Starting with initial infections of 1 to 10 worms per fry, intensity in 2 replicate groups increased to peaks of 55 and 65 on day 22 post-infection and declined to 0 by days 67 and 85 post-infection. The parasites were numerically aggregated within the host groups and there was a negative correlation between intensity and fish size. Infections did not influence growth or survival of the host and produced no clinical signs of disease.
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000469:parasitology*; D012487:Salmonidae / Q000469:parasitology*; D014200:Trematoda / Q000502:physiology*; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*; D014337:Trout / Q000033:anatomy & histology / Q000469:parasitology*