Fig. 4

Effects of incubation temperatures (12, 16, or 20 °C) on the temporal patterns of hatching event in Russian sturgeon Acipenser gueldenstaedtii embryos. Overall percent hatching success (filled boxes) and incidence of abnormal larvae (open boxes) for each temperature group are also provided. Means with different letters (a–c for hatching success and x and y for the incidence of abnormality) are significantly different based on ANOVA at P < 0.05