Douglas H. Powell

Channel catfish were stocked in 16 Alabama state-owned and managed public fishing lakes in an effort to create an additional sport fishery. The catfish harvest was generally low the first year after stocking with 100 catfish fingerlings per acre in an established bass-bluegillredear population. The harvest increased during the second year. The catfish harvest was 54.4 pounds per acre after the first year of fishing in a l00-acre public fishing lake in Alabama which was initially stocked with 100 channel catfish fingerlings per acre in addition to the nonnal stocking rate of bass,...

Barbour County Public Fishing Lake (75 acres) was stocked with approximately 500 channel catfish per acre in combination with the normal stocking rates of largemouth bass, bluegill, and redear sunfish. The lake was supplementally fed on one side only, in addition to receiving a regular fertilization program. At the end of one year of fishing, 305.5 fishermen per acre had harvested 621.8 pounds of fish per acre. Of this total, bluegill comprised 381 pounds per acre. There was no stgnificant difference between the weights of bluegill collected from the fed and non-fed areas. There...

A comparison of tolerance of fingerling black crappie, white crappie and largemouth bass to Fintrol-5 was conducted in aquaria. White crappie were found to be more susceptible to Fintrol-5 than were black crappie and largemouth bass. Largemouth bass and black crappie showed similar tolerance to the toxicant. The mortality of largemouth bass and black crappie was significantly reduced at a pH of 8.0-8.5. All three species suffered significant mortalities beginning with .04 ppm Fintrol-5 at a pH of 7.0. One ppm KMn04 significantly reduced mortality by detoxifying Fintrol-5.