James R. Charles

Oilfield brines wasting into the Green River created an acute pollution problem over 100 miles in extent. Before August, 1958, the water was moderately hard, of the calcium magnesium bicarbonate type, and had an average chloride concentration of less than 10 ppm. With the disposal of brines coincident with the rapid development of the Greensburg oilfield in the spring of 1958, the water became very hard, changed to a sodium chloride type, and chloride concentrations frequently exceeded 1,000 ppm. The effects this pollution had on the water quality, fish fauna, and macro-invertebrate bottom...

Perhaps the most universal problem in many of Kentucky's streams, from the angler's viewpoint, is that of excessive numbers of rough fish in proportion to the numbers of game fish. This paper presents the findings of a Dingell-Johnson project that has been concerned since 1952 with the manipulation of populations in 3 streams typical of types found in the state. The upper 46 miles of North Fork River in Mason County and 12 miles of Whippoorwill Creek in Logan County were treated with 5-percent powdered rotenone in 1952 to eradicate their entire fish populations. Both streams were...

The upper 46 miles of the North Fork of Licking River in Mason County, Kentucky, were treated in July, 1952, with 5-percent powdered rotenone to eradicate the entire fish population. This experimental section was then left open at all times to rough fish movement and recruitment. North Fork was selected as being typical of the many warm-water streams in the state having a high rough fish population which once offered better than average game fish angling. Five random population samples totaling 2.88 acres in area were taken prior to the eradication operation. They yielded 2,662 fish...