L. E. Miller

Effectiveness of an Electrical Barrier in Blocking Fish Movement

Electrical barriers were successful in blocking movements of gizzard shad (Dorosoma cepedianum), golden shiners (Notemigonus crysoleucas), rainbow trout (Oncorhynchus mykiss), brown trout (Salmo trutta), and largemouth bass (Micropertus salmoides) stocked in a 24-m long canal during simulated modes of pumped hydropower operation. Blockage rates were highest during nongeneration (95%-97%) and generation (94%-97%), and lowest during pumping (83%-84%). These results indicate an electrical barrier may be useful in blocking fish from migrating into areas around hydropower projects where they...


Fish Biomass and Angler Harvest from a South Carolina Cooling Reservoir

Fish biomass and angler harvest data were collected from Keowee Reservoir during a period when thermal characteristics of this reservoir were significantly altered by operation of a large steam-electric power plant. Plant operation increased the heat load of the reservoir and depressed the depth of the thermocline. During the 22-year sampling period, fish biomass (primarily for nonsportfish taxa) declined, fishing effort increased, and angler harvest rates remained unchanged.