FYI: DNR river biologists are in the third year of a four-year study to determine the population status of blue, channel and flathead catfish in the Wabash River. So far, about 2,000 catfish have been sampled to provide information on growth, age, movement, and survival. Prelminary results indicate that at 10 years of age, blue catfish average 27 inches, channel catfish average 19 inches and flathead catfish average 28 inches in length. The oldest fish observed was a 31-year-old flathead catfish that measured 42 inches and weighed 34 pounds. Wabash River catfish generally remain within one mile of the location they were caught and released. However, a blue catfish tagged and released in 2005 moved 27 miles downstream, where it was recaptured in 2007. Anglers have recaptured about 5 percent of the catfish tagged by biologists. If anglers catch a catfish with a green tag near the dorsal fin, they are asked to send the tag in for a reward to the Big Rivers Fisheries Program, Sugar Ridge FWA, 2310 E. SR 364, Winslow, IN 47598. The reward is a camouflage baseball cap that says "Wabash River Fisheries Research."