Data from the F1 generation of a medaka extended one‐
generation reproduction test (MEOGRT) study are used for this exercise (see
Table  10.10). Medaka embryos were exposed to various concentrations of a
test chemical. The experimental design was six replicate tanks of 20 embryos
each. The response of interest in this exercise is first day of hatch for the
embryos. The study was terminated at the end of 14 days of exposure.
Concentrations are in μgl −1.

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