| rtrout | R Documentation |
Weights of rainbow trout at various doses of dca
data(rtrout)
A data frame containing 96 observations with the following 2 variables.
Weightthe weight of the rainbow trout, in grams; a numeric vector
Dosethe dose of 3, 4-dichloroaniline (dca), in micrograms per litre;
one of
0 (control),
19,
39,
39,
71,
120, or
210
The data give the weight of 95 rainbow trout after exposure to dca for 28 days (note that one observation is missing at a dose of 39). The aim of the study was to “determine the concentration level which causes 25% inhibition [i.e. weight loss] from the control” (Maul, p. 161).
Crossland, N.O. (1985) A method to evaluate effects of toxic chemicals on fish growth. Chemosphere, 14(11-12), 1855–1870.
Maul A. (1992) Application of generalized linear models to the analysis of toxicity test data. Environmental Monitoring and Assessment, 23(1), 153–163.
data(rtrout) summary(rtrout)