Feedlots are plots located in establishments on which bovine cattle is fattened for market by
means of the use of concentrated foods. The objective of this work was to characterize …

Toxicity tests on effluents from industrial production facilities, municipal and industrial
wastewater treatment plants, and stormwater runoff were conducted with the freshwater …

Seventeen Great Lakes sediments ranging in degree of expected toxicity were evaluated
using a 21 day sediment elutriate bioassay with Daphnia magna. Sediments differed in their …

Progress in any area of biology has generally required work on a variety of organisms. This
is true because particular species often have characteristics that make them especially …

Fig. l. The build-up of hidden genetic variance resulting from the operation of selection and
mutation on a dona! population. Six representative genotypes are depicted at each step of …

Abstract In the United States, the Environmental Protection Agency regulates chemicals
under several legislative acts, two of which are the Toxic Substances Control Act (TSCA) …

Life-table experiments are frequently used to examine the effects of food level, toxicants, and
other experimental treatments on a population's finite rate of increase λ. Although methods …

Page 1 UNIVERSITY OF CA RIVERSIDE, LIBRARY G200 Y no. 1049 3 1210 02073 2721 US
GEOLOGICAL SURVEY CIRCULAR 1049 Applicability of Ambient Toxicity Testing to National …

The experiments reported here describe the incorporation of Daphnia magna into the 7‐d
Ceriodaphnia toxicity test procedure of Mount and Norberg [1]. The addition of D. magna to …

You? ll learn strategies and tactics that can be used to improve production and efficiency in
the propagation of fingerlings in fertilized hatchery ponds. This book covers the production of …