Publications

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seasonal patterns in the biology of eubothrium salvelini infecting brook trout in a creek in lower michigan.a total of 392 brook trout, salvelinus fontinalis, and 211 slimy sculpin, cottus cognatus, was examined for eubothrium salvelini (cestoda) from may 1995 through september 1996 from sweetwater creek, michigan. no seasonal pattern in prevalence, intensity, and abundance of parasites in trout and sculpin was determined. however a seasonal pattern in the length and percent gravid e. salvelini in brook trout suggests that recruitment of this parasite occurs during late summer and early fall. during t ...19989920300
distribution, prevalence, and pathology of a microsporidian infecting freshwater sculpins.microsporidian infections are common in many fish species, yet detailed studies of these parasites in ecologically important wild populations are rare. phylogenetic analysis using rdna sequence data and parasite morphology indicate that mottled sculpin cottus bairdii and slimy sculpin c. cognatus are hosts for glugea sp. microsporidia in the northern usa. glugea sp. is common in the michigan populations sampled for this study, and prevalence was ≥ 70% in 4 of 6 infected populations (range -4 to ...201627025307
myxobolus cognati n. sp. (myxosporea) from the opercular integument of cottus cognatus (cottidae) in lake michigan.a myxosporean producing aggregations of white pseudocysts in skin covering the posterior margin of the operculum and perioral tissue of cottus cognatus in lake michigan is described as myxobolus cognati n. sp. (myxosporea). histological sections revealed that the parasite develops in vascularized regions of the dermis and with development protrudes beyond the surrounding skin surface. fixed spores are oval in front view, measure 12.0-14.0 microns long and 9.5-10.5 microns wide, and contain 8-11 ...19968627483
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