Reproduction and survival data sets of chronic laboratory toxicity tests with Daphnia magna freshwater invertebrate exposed to five concentrations of copper during 21 days. Five concentrations were tested, with three replicates per concentration. Each replicate contained 20 organisms. Reproduction and survival were monitored at 16 time points.
data(copper)A data frame with 240 observations of the following five variables:
replicateA vector of class numeric with the
replicate code (1 to 15).
concA vector of
class numeric with the copper concentrations in \(\mu g.L^{-1}\).
timeA vector of class integer with the time points
(in days from the beginning of the experiment \(t = 0\)).
NsurvA vector of class integer with the number of
alive individuals at each time point for each concentration and each
replicate.
NreproA vector of class integer with the
number of offspring at each time point for each concentration and each
replicate.
Billoir, E., Delignette-Muller, M.L., Pery, A.R.R. and Charles, S. (2008) A Bayesian Approach to Analyzing Ecotoxicological Data, Environmental Science & Technology, 42 (23), 8978-8984.