Fifteen ponds were treated with toxaphene concentrations that varied from 0.01 to 0.1 parts per million. Preliminary studies revealed wide variations in the chemical and physical features of the ponds. Approximately 3,500 pounds of fish were killed. Carp, gizzard shad, and quillback were the most numerous; other species included largemouth bass, bigmouth buffalo, black crappie, black bullhead, bluegill, yellow bass, and channel catfish. Detoxification studies were conducted on five ponds. The first pond detoxified within 90 days; two remained toxic to fishes for 270 days. Factors important to the duration of toxicity are discussed.
Proceedings of the Iowa Academy of Science
©1959 Iowa Academy of Science, Inc.
"The Use of Toxaphene as a Fish Poison in Strip Mine Ponds With Varying Physical and Chemical Characteristics,"
Proceedings of the Iowa Academy of Science, 66(1), 515-517.
Available at: https://scholarworks.uni.edu/pias/vol66/iss1/70