The acute toxicity of Diquat (1:1-ethylene-2:2' dipyridylium
dibromide) and Dichlobenil (2, 6-dichlorobenzonitrile) to six selected
pond invertebrates was determined using the median tolerance limit
estimation method. Diquat was more toxic to the amphipod, Hyalella
azeteca than to the aquatic insects Callibaetis, Limnephilus,
Enallagma, Libellula, and Tendipedidae. The addition of mud...
During the summers of 1967 and 1968 the horizontal distribution and did vertical migrations of zooplankton were studied within the unique environment of Crater Lake. Sampling of the horizontal
distribution was done by towing plankton nets vertically in different locations. The vertical distribution was sampled by towing at different depths...
The basic objectives of this project can be stated as follows:
1. To test a methodology for improving the quality of impact statement content;
2. To provide opportunity for local participation in project design and decision making;
3. To provide more efficient procedures for complying with impact statement laws, thereby...
Two experiments were conducted to study the efficacy
of feeding lasalocid to cattle on pasture on a three times
weekly basis. In experiment 1, 72 crossbred yearling
steers were stratified across a randomized block design of
12 pens including three replications of four treatments.
Treatments consisted of: (1) .45 kg...
National statistics indicate that as many as 23
million adults in the United States are illiterate and
another 40 million lack literacy skills necessary to
function effectively or on more than a narrow basis in this
society. People without literacy skills or who have only
marginal reading ability find themselves...
