Examination of 5,456 ffsh of 36 different species during 1951 and 1952 showed 4,925 or 90 per cent to be infected with at least one species of parasite. Records include fish from many lakes and streams of the Columbia and Fraser drainages and from a few localities in the Skeena, Peace, Liard and Skagit drainages. Parasites are recorded for each species of ffsh from each locality. The incidence of parasitism in the fish was comparable with that found by other surveys in eastern Canada and the United States. No major difierences were for:nd in the parasite faunas of the difierent river systems, Most of the common parasites were forms of circumpolar or general North American distribution. Several species of parasites described only from the Pacific coast area were common in certain hosts. Introduced species of ffsh showed very light infections with but few species of their normal parasites. The parasite fauna of ffshes of this area appears to be less varied than in eastern and southern parts of the continent. rReceived for publication , May 27, 1954. 2An investigation sponsored and supported by the British Columbia Game Commission. 3Address: College of Wooster, Wooster, Ohio. On sabbatical leave at the University of British Columbia during 1953-54. aAddress: Department of Zoology, University of British Columbia. J. Frsrr. Rrs. Bn. CeNeoe, lf(6), 1954. Printed in Canada. J. Fish. Res. Bd. Can. Downloaded from www.nrcresearchpress.com by University of Alberta on 11/27/14 For personal use only.fows to the west, and the Peace and Liard with their tributaries, drain the flat prairie land of the north and east towards the Arctic Ocean. Lesser drainages represented are the Skagit River in the south central area and the Yukon in the northwest. These systems include numerous lakes, many of large size. Our sampling of this large area has been very incomplete, particularly in the north. Systematic collection from Vancouver Island and the many small coastal streams and lakes has not been possible. Most of our material hds come from the Columbia and Fraser systems, with only a few collections from the Skeena and Peace drainages. The results indicate, however, that our sample is probably representative of tho whole northwest portion of the continent.The study was initiated in the summer of 1952 and continued through the summer and academic year of 1953-54. Parasites were collected by the investigators in the field during the summer months. Additional examinations of preserved fish were made during the winter of 1953-54 by Bangham who had a research leave from the College of Wooster.During the ffrst season we were attached to Iake survey parties of the British Columbia Game Commission. Their seine hauls and gill-nef sets provided specimens for the parasite study. The activities of the ffrst ffeld party with which we worked were centered in the East Kootenay area. Starting at Christina Lake, near Grand Forks, specimens from several lakes in the Kettle River drainage were obtained. Other collections were made in the vicinity of Cran...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.