Contribution of Stocked Advanced-Fingerling Largemouth Bass to the Population and Fishery at Taylorsville Lake, Kentucky

Abstract

Abstract Fin-clipped largemouth bass Micropterus salmoides averaging 4.2–4.5 in long were stocked annually in 3,050-acre Taylorsville Lake in the fall from 1988 to 1992 at densities ranging from 9.8 to 27.8 fish/acre. Survival of each year-class of stocked largemouth bass from age 0 to age 5 was similar; however, survival from the time of stocking to fall collection varied among year-classes, which suggests density dependence in survival. Optimal stocking density ranged from 9.8 to 12.8 fish/acre based on higher survival and lower production costs. In 1993, after 5 years of stocking, the stocked largemouth bass accounted for 37.6% (<8.0 in), 18.2% (8.0–11.9 in), 24.1% (12.0–14.9 in), and 14.9% (≥15.0 in) of the various size-groups and 24.5% of the total electrofishing catch. Contribution of the stocked largemouth bass in the electrofishing catch declined to below significant levels by the second spring after cessation of the fall stocking program. Corresponding significant increases were detected in the e...