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

Table 33. Jaccard coefficients of parasite-community similarity for fish in the family Percidae
from Lakes Michigan, Superior, Huron, Erie, and Ontario, 1871-2010.
Lake Michigan Superior Huron Erie
Michigan 1.0000 0.3061 0.3731 0.2714
Superior 0.3061 1.0000 0.3150 0.3285
Huron 0.3731 0.3150 1.0000 0.4938
Erie 0.2714 0.3285 0.4938 1.0000
Ontario 0.3281 0.3088 0.5000 0.4250
Table 34. Jaccard coefficients of parasite-community similarity for fish in the family Salmonidae
from Lakes Michigan, Superior, Huron, Erie, and Ontario, 1871-2010.
Lake Michigan Superior Huron Erie
Michigan 1.0000 0.2777 0.2857 0.1250
Superior 0.2777 1.0000 0.4761 0.1400
Huron 0.2857 0.4761 1.0000 0.1538
Erie 0.1250 0.1400 0.1538 1.0000
Ontario 0.2222 0.3000 0.1525 0.1428
Parasite Species-Richness, Autogenic-Allogenic Helminth Species, and
Jaccard Coefficients of Parasite-Community Similarity for Specific Fish
Species
Parasite species-richness, percentages of autogenic-allogenic helminth species, and Jaccard
coefficients for the parasite communities were used to describe and compare the parasite and
helminth faunas of specific fish species. For each of the five major fish families previously
discussed and Osmeridae, one or two fish species (Centrarchidae—Ambloplites rupestris,
Cyprinidae—Notropis hudsonius, Catostomidae—Catostomus commersonii, Percidae—Perca
flavescens, Salmonidae—Coregonus clupeaformis, Salvelinus namaycush, Osmeridae—Osmerus
mordax) were chosen based on the number of studies performed and available data from each
Great Lake. These baseline data on parasite species-richness as well as on the occurrence and
percentages of autogenic and allogenic helminth species and the other parasite groups in these
specific fish species in this synopsis are important because data generated in future studies can be
compared to them. Temporal difference in these data may indicate that one or more abiotic or
biotic characteristics playing a role in the occurrence of parasites in fishes are changing in one or
more of these lakes.
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