Fig. 5From: Variation in responses to photoperiods and temperatures in Japanese medaka from different latitudesBox plot with dot plot for the GSI values of females kept at the Hakodate outdoor experimental field on April 5, May 24, and June 8. A red triangle indicates a mean value in each group. Significant differences among groups (p < 0.05) are indicated by a–d. The raw statistical results of two-way ANOVA and Tukey tests are shown in Tables 6 and 7Back to article page