Chronic toxicity of waterborne thiocyanate to the fathead minnow (pimephales promelas): A partial life-cycle study

1994 ◽  
Vol 13 (9) ◽  
pp. 1423-1432 ◽  
Author(s):  
Roman P. Lanno ◽  
D. George Dixon
2012 ◽  
Vol 114-115 ◽  
pp. 31-38 ◽  
Author(s):  
G.H. Panter ◽  
Y.C. Glennon ◽  
J. Robinson ◽  
A. Hargreaves ◽  
R. Murray-Smith

1972 ◽  
Vol 29 (5) ◽  
pp. 583-587 ◽  
Author(s):  
A. R. Carlson

When fathead minnows (Pimephales promelas) were exposed to five concentrations (0.008–0.68 mg/liter) of the insecticide carbaryl for 9 months and throughout a life cycle, the highest concentration prevented reproduction and decreased survival. At the high concentration, testes contained motile sperm and ovaries were in a flaccid condition and appeared to be in a resorptive state. At the 0.68 mg/liter concentration, carbaryl appeared to contribute to mortality of larvae (produced by unexposed parents) within 30 days of hatching. Survival of young grown in the 0.008 mg/liter concentration was reduced. Since no demonstrable effects were noted for survival, growth, or reproduction at the 0.017, 0.062, and 0.21 mg/liter concentrations, this low survival value is considered not due to carbaryl. The 96-hr median tolerance concentration (TL 50) and the lethal threshold concentration (LTC) for 2-month-old fathead minnows were 9.0 mg/liter. The maximum acceptable toxicant concentration (MATC) for fathead minnows exposed to carbaryl in water with a hardness of 45.2 mg/liter and a pH of 7.5 lies between 0.21 and 0.68 mg/liter. The application factors (MATC/96-hr TL50 and MATC/LTC) both lie between 0.023 and 0.075.


Author(s):  
Reinhard Länge ◽  
Thomas H. Hutchinson ◽  
Charlotte P. Croudace ◽  
Fred Siegmund ◽  
Hermann Schweinfurth ◽  
...  

2005 ◽  
Vol 24 (9) ◽  
pp. 2316 ◽  
Author(s):  
Gerald T. Ankley ◽  
Douglas W. Kuehl ◽  
Michael D. Kahl ◽  
Kathleen M. Jensen ◽  
Ann Linnum ◽  
...  

2001 ◽  
Vol 20 (6) ◽  
pp. 1216-1227 ◽  
Author(s):  
Reinhard Länge ◽  
Thomas H. Hutchinson ◽  
Charlotte P. Croudace ◽  
Fred Siegmund ◽  
Hermann Schweinfurth ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document