James R. Jackson and Richard L. Noble, Department of Zoology, Campus Box 7617, North Carolina State University, Raleigh, NC 27695-7617.

Abstract. Growth rates, as measured by changes in mean length through time, were determined for nine cohorts of juvenile largemouth bass Micropterus salmoides captured via shoreline electrofishing from 1987-1995 in B. E. Jordan Lake, North Carolina. Mean daily growth rates (mm/day) from July through October varied from 0.05-0.39 and in all cases were most parsimoniously described by linear models. No relationship was observed among annual variations in survivorship and growth rate during the first growing season. Collections of yearling largemouth bass provided little evidence of size-selective overwinter mortality, and survivorship from July through the following spring was similar among all cohorts, despite variations in growth rate and fall mean lengths. Data from individually marked juvenile bass in 1991 similarly failed to indicate a strong relationship between growth and survival.