Richard J. Strange

Movement, Growth, and Production of Brown Trout in Sympatry with Brook Trout in a Southern Appalachian Stream

A 1,532-m reach of Laurel Fork, a second-order tributary of the Doe River, Tennessee, was divided into 37 study sections which were sampled every 3 months by electrofishing. Brown trout (Salmo trutta) and brook trout (Salvelinus fontinalis) were weighed, measured, given a unique mark, and returned to the section from which they were caught. Population estimates were made with the Jolly Seber technique. Movement, density, instantaneous growth rate, biomass, and production were calculated. A large portion of recaptured brown trout (87%) and brook trout (63%) had trimonthly movements <75 m...

Age and Growth, Food Habits, and Forage Value of the Alewife in Watauga Reservoir, Tennessee

In 1976, the alewife (Alosa pseudoharengus) was stocked in Watauga Reservoir, Tennessee, by the Tennessee Wildlife Resources Agency (TWRA), in an attempt to strengthen the forage base. To assess ecological impacts of the introduction, both age and growth and food habits of alewives were evaluated along with food habits of adult game fishes. The alewife population was composed of 3 age classes (0+, 1+, and 2+). Average back-calculated lengths were 70 mm at annulus I and 103mm at annulus II. No significant differences between sexes were found with back-calculated lengths or with the length-...