Data for: Evolutionary Endocrinology in the Adaptive Radiation of Threespine Stickleback Fish

Female Stickleback Reproductive Steroids - shows natural log transformed cortisol, testosterone, and estradiol for females at 3 stages: early in clutch production (2 days into producing clutch), pre-ovulation (the day prior to ovulating) and ovulation. Females sampled were from three populations - Bush Creek, British Columbia, Lynne Lake, Alaska, and Crystal Lake, British Columbia. Stickleback_Water_Body_Plasma_Steroids - shows natural log transformed cortisol from water-borne, whole-body, and plasma samples. All samples are adjusted for mass.