chlordan {morse} | R Documentation |
Reproduction and survival data sets for Daphnia magna exposed to chlordan during 21 days
Description
Reproduction and survival data sets of chronic laboratory toxicity tests with Daphnia magna freshwater invertebrate exposed to six concentrations of one organochlorine insecticide (chlordan) during 21 days. Six concentrations were tested, with 10 replicates per concentration. Each replicate contained one organism. Reproduction and survival were monitored at 22 time points.
Usage
data(chlordan)
Format
A data frame with 1320 observations of the following five variables:
replicate
A vector of class
numeric
with the replicate code (1
to60
).conc
A vector of class
numeric
with the chlordan concentrations in\mu g.L^{-1}
.time
A vector of class
integer
with the time points (in days from the beginning of the experimentt = 0
).Nsurv
A vector of class
integer
with the number of alive individuals at each time point for each concentration and each replicate.Nrepro
A vector of class
integer
with the number of offspring at each time point for each concentration and each replicate.
References
Manar, R., Bessi, H. and Vasseur, P. (2009) Reproductive effects and bioaccumulation of chlordan in Daphnia magna, Environmental Toxicology and Chemistry, 28, 2150-2159.