Weber D N, Spieler R E
Experientia. 1987 Jun 15;43(6):621-4. doi: 10.1007/BF02126355.
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.
将青鳉饲养在16:8的明暗循环条件下，每天按照5种不同喂食时间表中的一种进行一次喂食。攻击行为的每日节律迅速与预定的喂食时间同步，并在3天的饥饿期内保持这种同步。相比之下，产卵和求偶的每日节律无论喂食时间表如何，都与光暗循环保持同步。因此，这种鱼与其日常环境的时间整合可能涉及多种刺激，这些刺激同时且不同程度地影响外部表达的昼夜节律系统。
