Bert Deener

Population Changes of Sportfish Following Flathead Catfish Introduction inthe Satilla River, Georgia

A standardized sampling dataset collected from 1991-2007 on the Satilla River, Georgia, was used to document changes in bluegill (Lepomis macrochirus), largemouth bass (Micropterus salmoides), and redbreast sunfish (L. auritus) populations after the introduction of flathead catfish (Pylodictis olivaris). Repeated measures ANOVA was conducted incorporating a control area, where flathead catfish abundance is extremely low, and a flathead area, where flathead catfish have become well established, for both before (1991-1995) and after (1996-2007) flathead invasion. The analyses revealed...