Hydroacoustic estimates of abundance and spatial distribution of pelagic prey fishes in western Lake Superior - Mason, Doran; Johnson, Timothy; Harvey, Chris; Kitchell, James; Schram, Stephen; Bronte, Charles; Hoff, Michael; Lozano, Stephen; Trebitz, Anett S.; Schreiner, Donald; Lamon, E.; Hrabik, Thomas (Journal of Great Lakes Research, 2005)