Centerville Lake is primarily managed for Walleyes (WAE). Walleye fry were stocked annually at variable rates from 1989 to 2012, with the exception of 1994, 1995, 2005 and 2007. Since 2004, WAE fry are scheduled to be stocked biennially on even numbered years at a rate of 3,000 fish/littoral-acre (828,000 fry). Walleye were sampled below the median level for gill net abundance in class 24 lakes. The gill net catch rate of WAE is down from the level observed in 2007. The average size of gill net sampled WAE in 2013 was 21.8 inches and 4.1 pounds. Approximately 83 percent of all WAE captured measured 20 inches or longer. Northern Pike (NOP) were sampled above median levels for abundance and mean weight in gill nets. The average size NOP captured in gill nets was approximately 24.7 inches and 3.6 pounds. Approximately 10 percent of sampled NOP measured 30.0 inches or longer. Yellow Perch (YEP) catch rate increased from 2007. The average size of YEP sampled was 7.6 inches and 0.21 pounds. Approximately 39 percent of all YEP captured measured 8 inches or longer. Bluegills (BLG) were sampled above the average level of abundance for trap nets however has decreased since the assessment in 2007. The average BLG sampled in trap nets was 5.9 inches and 0.12 pounds. Approximately 9.7 percent of BLG sampled were 7.0 inches or longer. Black Crappies (BLC) were sampled above the median level of abundance for gill nets, however overall abundance in both gears has decreased from 2007. The average BLC sampled in gill nets was 7.5 inches and 0.23 pounds. Approximately 7.0 percent of BLC sampled in gill nets were 9.0 inches or longer. Largemouth Bass (LMB) were sampled at an above average level of abundance in both the gill nets and trap nets. The average size of LMB sampled was 12.9 inches and 1.4 pounds.
- Eurasian Watermilfoil
Recreational activities such as recreational boating, angling, waterfowl hunting, and diving may spread aquatic invasive species. Some aquatic invasive species can attach to boats, while others can become tangled on propellers, anchor lines, or boat trailers. Many species can survive in bilge water, ballast tanks, and motors or may hide in dirt or sand that clings to nets, buckets, anchors, and waders. Fortunately, completing simple steps can prevent the transport of aquatic invasive species.