The Food of the Bridled Shiner, Notropis bifrenatus (Cope)

Abstract
An analysis is presented of the food of 200 specimens of the bridled shiner, including young and adults from collections taken throughout the season in the Fall Creek region, Ithaca, New York, and in the Oyster River, Durham, New Hampshire. Feeding habits are descr. The food of adults and young was essentially similar, differing apparently only through size selection. The total contents were 73.4% animal, 6.0% plant, and 20.6% debris. The main staples were Diptera (28.8%) and Entomostraca (24.0%). Chironomid and psychodid larvae composed 90.3% of the Diptera, and cladocerans and copepods, 92.5% of the Entomostraca. Hydrachnids and amphipods contributed significantly. The seasonal variation in food selection is analyzed.