Akiyama T, Yoshida M
Biol Bull. 1990 Oct;179(2):178-182. doi: 10.2307/1541766.
The crustacean Dimorphostylis asiatica inhabits the sublittoral zone and actively swims in the water at night. Males are positively phototaxic, and can be collected on the surface by using a light at night. The timing of this emergence was investigated in the field. Nearshore collections of males have demonstrated a clear rhythmic pattern, with emergence synchronized with both day-night and tidal cycles. The remarkable feature of this record was that the tidal aspect of the pattern was modified seasonally. While emergence was strongly synchronized with high tide during the winter and spring, tidal synchrony was scarcely detected in summer and autumn. Environmental factors that affect the seasonal modification of the activity pattern are still unknown.
甲壳动物亚洲异形柱虾栖息于潮下带，夜间在水中活跃游动。雄性具有正趋光性，夜间可用灯光在水面收集。在野外对这种出现的时间进行了调查。近岸雄性个体的采集显示出明显的节律模式，其出现与昼夜和潮汐周期同步。该记录的显著特点是，这种模式的潮汐方面会随季节变化。虽然在冬季和春季，出现时间与涨潮强烈同步，但在夏季和秋季几乎检测不到潮汐同步。影响活动模式季节性变化的环境因素仍然未知。
