Pineal control of ultradian rhythms and short-term activity in a cyprinid fish, the lake chub, Couesius plumbeus.
D000818:Animals; D002940:Circadian Rhythm; D005399:Fishes; D006801:Humans; D009043:Motor Activity / Q000502:physiology; D010507:Periodicity; D010870:Pineal Gland / Q000502:physiology*