Austin K. Andrews

A stratified, random survey was conducted from I August 1970through 31 July 1971 at the 15 public access points on the unimpounded riverine flowing portions of the Mountain Fork River in McCurtain County, Oklahoma. The purpose of the study was to compare fisherman expenditures and capitalized resource values in the portions of the river above and below Broken Bow Reservoir, a flood control and hydroelectric impoundment. Of the estimated 16,485 fishermen who spent $156,864, 8,403 fishennen above the reservoir spent 76,757 and 8,082 fishermen below the resevoir spent $80,107. The difference...

New information concerning spawning and reproduction of the fathead minnow (Pimephales promelas Rafinesque) from observations in Colorado, and a review of important findings of previous works is presented in this paper. Potential for egg production by mature. Age I females is between 1,000 and 10,000 eggs per breeding season. On the basis of this information and the known polygynous mating behavior, we estimate that 19,200 adult fathead minnows in a ratio of five females per male should be stocked per surface acre to yield a theoretical maximum production of 1.5 million fingerlings per...

Variations in annual increments of growth of white crappie. Pomoxis annularis Rafinesque, and channel catlish, Ictalurus punctatus (Rafinesque), are examined in relation to mean annual water level of Lake Carl Blackwell, 1962-1967, when lake level was declining. The occurrence of lee's phenomenon precluded a correlative comparison of white crappie growth with water level, but decrease in growth at age I and the increase at older ages is attributed to the decline in water level. The crappie body-scale relationship changed from curvilinear to linear as growth improved during the drawdown...