Geology topics

O.B. Cope

Publications and source records attributed to O.B. Cope.

3 recordsLinked to original sources

USGS1965

Relative toxicities of similar formulations of pyrethrum and rotenone to fish and immature stoneflies

The insecticidal properties of rotenone and pyrethrum have been known for many years. Both toxicants have long histories of extensive use for control of a variety of insect pests. Rotenone has been also employed as a management tool by fishery biologists to rehabilitate fishing waters, and its toxicity to fish in a number of ecological situations is well established. Pyrethrum's toxicity to fish is less well known.

Pyrethrum Post↗

USGS1964

Revised bibliography on the cutthroat trout

Explore the source record for details and available documents.

Research Report↗

USGS1961

Standards for reporting fish toxicity tests

The growing impetus of studies on fish and pesticides focuses attention on the need for standardized reporting procedures. Good methods have been developed for laboratory and field procedures in testing programs and in statistical features of assay experiments; and improvements are being made on methods of collecting and preserving fish, invertebrates, and other materials exposed to economic poisons. On the other had, the reporting of toxicity data in a complete manner has lagged behind, and today's literature is little improved over yesterday's with regard to completeness and susceptibility to interpretation.

Progressive Fish-Culturist↗