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Description: |
3 pages : tables ; 26 cm. |
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With Note: |
With: Acute and chronic toxicity of rotenone to Daphnia magna (No. 92) : Oral toxicity of Rotenone to mammals (No. 94). |
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Bibliography Note: |
Includes bibliographical references (page 3). |
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Summary, Etc. Note: |
Abstract: In a flow-through toxicity test, eyed eggs and larvae of rainbow trout were exposed for 32 days to crystalline technical grade rotenone to determine its effects on survival, hatching, and growth. Rotenone concenttrations of 1.0 to 10.0 microgram/liter did not kill the eyed eggs, which hatched normally after 5 or 6 days of exposure. Mortality of young larvae increased as rotenone concentrations increased. After 32 days of exposure, and after all larvae had transformed to the swim-up stage, the LC50 was 2.80 microgram/liter. Hatching time was unaffected by exposures to rotenone, but growth was significantly decreased in fish that survived concentrations of 2.21 and 2.75 micrograms/liter. |