Parasites of Fish from the Great Lakes - Great Lakes Fishery ...

ambloplitis, Apophallus brevis, A. venustus, Ichthyocotylurus diminuta, I. intermedia,
Ichthyocotylurus sp., and Tylodelphys scheuringi mature in piscivorous birds; larvae of the
cestode Dilepis sp. mature in piscivorous reptiles, birds or mammals; larvae of the cestodes of
Diphyllobothrium ditremum and Ligula intestinalis mature in piscivorous birds; larvae of
Diphyllobothrium laruei mature in mammals; non-intestinal nematode larvae of Cosmocephalus
obvelatus, Paracuaria adunca, Contracaecum spiculigerum, and Eustrongylides tubifex mature in
piscivorous birds; and Spiroxys sp. matures in turtles.
Table 26. Parasites reported in fishes from Lake Ontario, 1930-2010. Host documentation, in
order, consists of references; when observed (cdnp = collection date not provided); prevalence
defined as the percentage (%) of fish infected (pnp = prevalence not provided); mean intensity
defined as the mean number of parasites per infected fish (minp = mean intensity not provided);
for the Dechtiar et al. (1988) article, intensity of infection (L = light, 1-9 parasites per host; M =
medium, 10-49 parasites per host; and H = heavy, >50 parasites per host); location (lns = location
not specified or incomplete); latitude and longitude (llnk = latitude/longitude not known).
Ciliophora (Ciliates)
Ichthyophthiriidae Kent, 1881
Ichthyophthirius multifiliis (Fouquet, 1876)
Synonym: None
Site of Infection: Body surface, fins, gills
Host:
Anguilla rostrata: Dechtiar and Christie 1988; 1961-1971; 5%; H; lns; Ontario; llnk
Ictalurus punctatus: Dechtiar and Christie 1988; 13%; M; lns; Ontario
Perca flavescens: Dechtiar and Christie 1988; 2%; L; lns; Ontario
Trichodinidae Raabe, 1959
Trichodina urinaria Dogiel, 1940
Synonym: Trichodina algonquinensis Li and Desser, 1983
Site of Infection: Ureters
Host: Perca flavescens: Dechtiar and Christie 1988; 1961-1971; 5%; H; lns; Ontario; llnk
Trichodina sp.
Site of Infection: Gills
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