Black Spot Disease in a Large Discrete Sample of Spotfin Shiners From the Upper Susquehanna River

Elaine Langone Center, Terrace Room

We examined 3500 spotfin shiners (Cyprinella spiloptera) for black spot disease. These fish represented a single haul of a 7.6 m bank seine along the shoreline of the Upper Susquehanna River. This sample presented an opportunity to assess black spot in a large, discrete sample of a common minnow at a single point in time. Our specific goals were to assess the prevalence (=Nhost/Nfish), mean intensity (=Nspots/Nhost), and abundance (=Nspots/Nfish) of disease in these fish.