Robert T. Lackey

Fisheries managers have long operated under the assumptions that time spent fishing (angler-days) or pounds or numbers of fish caught (maximum sustained yield) were accurate measures of fisheries output. However, many fisheries managers today advocate development of a multidimensional output measure which would incorporate social, aesthetic, and psychological factors. The present srndy was undertaken to delineate and determine the relative importance of 10 items affecting the quality of angling as perceived by Virginia fee-fishermen. A self-administered questionnaire employing a modified...

A basic activity of freshwater recreational fisheries management agencies is forecasting societal demand for fisheries resources and producing the necessary supply. Today, potential consumption often exceeds the supply of fisheries of the desired quality. A primary means for enhancing contemporary fisheries management may be to regulate angler consumption. Operations research techniques are well suited for handling the complexities involved with planning multiple action policies for regulating angler consumption. PISCES is a computer simulator of the recreational fisheries management...

Claytor Lake, Virginia, an 1820 ha main stem hydroelectric reservoir, was studied for one year to determine the effect of water discharge on reservoir phytoplankton. Number/liter, areal units/liter, average cell size, and chlorophyll a content were used as measures of photoplankton abundance. Rate of water discharge had an adverse effect on reservoir phytoplankton during spring and summer. Although increased rate of water discharge caused increased phytoplankton loss, the adverse effect of rate of water discharge on reservoir phytoplankton populations was probably at least partially due to...

A computerized creel census system that is nearly automatic after initial field data recording is described. Partially prepunched computer cards are used to record creel data. Cards are processed directly by computer and a detailed tabulation provided to the fisheries manager. The entire system is designed for ease of use in that no programming knowledge is required of the user.