William B. Kittrell, Jr.

Comparison of Florida, Northern, and Intergrade Juvenile Largemouth Bass in a Virginia Reservoir

Briery Creek Lake was stocked with both the Florida and northern subspecies of largemouth bass (Micropterus salmoides floridanus and M. s. salmoides, respectively) at a ratio of 3 Florida to 1 northern bass following impoundment in 1986. Progeny of these stockings in the 1989 and 1990 year classes were sampled in October as age-0 and again the following May and electrophoretically assayed to assign phenotypes for comparison of overwinter survival, first-year growth, and relative weight. Subspecies as well as intergrade (F1 and Fx) phenotypes were present in both year classes. First-...