Fig. 3. Correlation between the number of movements (per hour) and oxygen consumption (µmol min^–1 g^–1 embryonic body dry mass) in chorionated (open circles, chorion intact), dechorionated (closed circles, chorion removed), and hatched (triangles) rainbow trout embryos around the time of hatch (3 days before hatch to 3 days after hatch). Embryos were dechorionated 3 days before hatching. Movements were measured while the embryos were in the respirometers.