Record Display for the EPA National Library Catalog
RECORD NUMBER: 131 OF 488
|OLS Field Name||OLS Field Data|
|Main Title||Effect of Pentachlorophenol on the Growth and Mortality of Embryonic and Juvenile Steelhead Trout.|
|Author||Dominguez, S. E. ; Chapman, G. A. ;|
|CORP Author||Corvallis Environmental Research Lab., OR.|
|Additional Subjects||Phenols ; Biocides ; Toxicity ; Trout ; Sodium compounds ; Chlorine organic compounds ; Exposure ; Growth ; Embryos ; Mortality ; Reprints ; Salmo gairdneri ; Phenol/pentachloro|
The toxicity of sodium pentachlorophenate to early life stages of steelhead trout (Salmo gairdneri) was investigated, using a flow-through exposure system. A 96-hr LC50 of 66 micrograms/l was derived for previously unexposed ten-week-old fry. A 72-day test, beginning 24 hr after fertilization, yielded a chronic toxicity threshold of 14 micrograms/l. These results, and the acute/chronic ratio of 4.7, compare reasonably well with values in the literature. Yolk sac edema and cranial malformations, which are commonly observed in chronic tests with technical grade pentachlorophenol, were rate in this test with purified (99%) material.