title: Circadian and circannual fluctuations of pineal indoleamines (serotonin and melatonin) in Testudo hermanni Gmelin (Reptilia, Chelonia). I. Under natural conditions of photoperiod and temperature.
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D002940:Circadian Rhythm; D005260:Female; D008027:Light; D008297:Male; D008550:Melatonin / Q000378:metabolism*; D010507:Periodicity; D010870:Pineal Gland / Q000378:metabolism*; D012621:Seasons; D012701:Serotonin / Q000378:metabolism*; D013696:Temperature; D014426:Turtles / Q000378:metabolism*
chemical_list: D012701:Serotonin; D008550:Melatonin