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Foods And Feeding Of The Redfin Shiner (Notropis Umbratilis) In Coles County, Illinois, Karen Denise High
Foods and diel feeding activities of the redfin shiner, Notropis umbratilis, were studied in Coles County, Illinois in September, 1981, and monthly from April through September, 1982. A total of 200 stomachs with food were examined. Diptera adults and larvae were the most frequently occurring food item (83%), and also occurred in the highest volume (49%). Coleoptera were the second most frequently occurring item (23%), and accounted for the second largest volume (11%). Larger fish consumed a wider variety of food items. Changes in foods with season were also noted.
Feeding activity on the 24-25 July was greatest in the ...