title: An indication of change in Ligula intestinalis (Linn.) occurrence in spottail shiners, Notropis hudsonius (Clinton), from western Lake Erie, 1929-1977.
mesh_terms: D000818:Animals; D002589:Cestoda; D004463:Ecology; D005399:Fishes / Q000469:parasitology*; D005618:Fresh Water; D007422:Intestines / Q000469:parasitology; D007814:Larva; D009820:Ohio; D013045:Species Specificity