AGE AND GROWTH OF LAKE STURGEON IN THE UPPER ST.-LAWRENCE RIVER

The growth of lake sturgeon (Acipenser fulvescens) over time in the up per St. Lawrence River Ir ns examined. Growth Of lake sturgeon collect ed during 1993 and 1994 below Robert Moses Dam near Massena, New York. was compared to that reported for the same population almost 25 years earlier The data suggest that lake sturgeon growth was similar to tha t reported in the previous study. However, significant differences iii the elevations of regression models between males and fish of unknown sex in both data sets suggest possible sexual dimorphism in growth at younger ages.