Impingement Dynamics and Age and Growth of Selected Species at Lake Dardanelle, a Southcentral Reservoir

摘要

Impingement data collected between 1974 and 1979 was analyzed and compared with four years of data from Arkansas Nuclear One located on Lake Dardanelle, a southcentral run-of-the-river reservoir. Dorosoma petenense, D. cepedianum, Ictalurus punctatus, Lepomis macrochirus, and several other recreationally or ecologically important species commonly found on the intake screen were chosen for comparison. Weekly natural log transformed impingement estimates were plotted, and yearly impingement estimates were determined over the five year period. An analysis of variance on the transformed weekly estimates of eight species of fish indicated the significance of temperature on impingement for seven species. Results of the impingement analysis were compared and contrasted with age and growth studies in the reservoir.