Physical Sciences and Mathematics Commons^™

Production Of Waterfowl In The Rain Basin Area Of South Central Nebraska, Ray Linder

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

One important form of wetlands habitat in Nebraska is the “Fresh-water Basins”; their importance extends to both waterfowl and upland game. The fresh-water basins are located primarily in south-central Nebraska. They are closed drainages, usually from one to 40 acres but ranging up to 1,000 acres, formed in the gently rolling loess plains. Soils are silt loam and the somewhat impervious soils in flat or depressed position receive and retain the largest amounts of water. This caused leaching and concentration of clay in the subsoil forming a soil type peculiar to these areas known as "Scott silt-loam," a heavy clay-loam …

The Results Of Four Years Of Fish Eradication Work With Toxaphene In Nebraska, D. B. Mccarraher, Jack L. Dean

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

Experimental use of the compound, toxaphene, (chlorinated camphene), as a fish eradicant was first tried in Nebraska during 1956.

During the period from 1956 to 1958 a total of 3,810 acres of water have been treated with emulsifiable toxaphene to remove rough fish populations. Concentration levels ranged from 0.05 p.p.m., to 0.61 p.p.m. The maximum depth of the nine renovated sandhill lakes was seven feet with an average depth of only 4.5 feet. Numerous spring seeps are found in all lakes and bottom deposits were organic muck and sand. The lakes are considered moderately alkaline in the 8.5 - 9.5 …