Efficacy of Rotenone to Collect Bluegill for Stomach Content Analysis
In 1980 and 1981, bluegill, Lepomis macrochirus, were collected concurrently and in adjacent littoral areas of West Point Lake, a 10,480-ha reservoir (Alabama-Georgia), by seining (S) and by poisoning with rotenone (R). A statistical comparison of total stomach content volume and individual food item volume for Sand R fish was conducted to determine if rotenone caused either gorging or regurgitation of food as reported for some piscivorous fishes. Stomach contents of 744 R and 1,121 S fish were examined. Data were paired by date, site, and fish size. Although significant differences in...
