Article
Effects of the Light-Dark Cycle and Scheduled Feeding on Behavior and Reproductive Rhythms of the Cyprinodont Fish, Medaka, Oryzias latipes
Experientia
Document Type
Article
Publication Date
6-1-1987
Keywords
- Circadian rhythms,
- Zeitgebers,
- Oryzias latipes,
- Meal-feeding,
- Behavior,
- Environmental factors
Abstract
Medaka were maintained on a 16∶8 light-dark cycle and fed once daily on one of 5 different feeding schedules. The daily rhythm of agonistic behavior rapidly entrained to the scheduled feeding time and maintained this entrainment during a 3-day starvation period. In contrast the daily rhythms of egg laying and courtship stayed entrained to the L:D cycle regardless of the feeding schedule. Thus, temporal integration of this fish with its daily environment can involve multistimuli which concurrently and differentially entrain externally expressed circadian systems.
DOI
10.1007/BF02126355
Additional Comments
NIH grant #: AM 25191; NIEHS ES grant #: 01985
Disciplines
Citation Information
D. N. Weber and Richard E. Spieler. "Effects of the Light-Dark Cycle and Scheduled Feeding on Behavior and Reproductive Rhythms of the Cyprinodont Fish, Medaka, Oryzias latipes" Experientia Vol. 43 Iss. 6 (1987) p. 621 - 624 ISSN: 0014-4754 Available at: http://works.bepress.com/richard-spieler/62/
©Birkhäuser Verlag Basel 1987