Fig. 1From: Variation in responses to photoperiods and temperatures in Japanese medaka from different latitudesLocation from which the fish used in the experiment originated. a Collection sites of populations used in Experiments 1–3. The numbers refer to the locations listed in Table S1. Hakodate, where Experiment 3 was conducted, is shown using a green star. b Differences in day length in the natural habitats. c Differences in temperatures in the natural habitatsBack to article page