Science. 1978 Jan 27;199(4327):453-5. doi: 10.1126/science.199.4327.453.
Semimonthly peaks in courtship behavior of male crabs coincide with peaks in the temporal distribution of receptive females. Females mate once each month, 4 to 5 days before one of the semimonthly spring tides. The relation of the time of reproduction to tide cycles may be an adaptation to increase to a maximum the probability that the final stage of the planktonic larvae will be transported by tidal currents to substrates suitable for adults.
雄蟹求偶行为的半月周期性高峰与可受孕雌蟹的时间分布高峰相吻合。雌蟹每月交配一次，在半月周期的两次春潮中的一次之前 4 到 5 天。繁殖时间与潮汐周期的关系可能是一种适应，以最大限度地增加浮游幼虫的最后阶段被潮流运送到适合成虫的基质的概率。
