Orientation of Limulus polyphemus in the Vicinity of Breeding Beaches
Orientation of Limulus polyphemus in the Vicinity of Breeding Beaches
复制标题
繁殖滩附近鲎的方位
DOI：
10.1080/10236247609386943
复制
发表时间：
1976
期刊：
影响因子：
--
通讯作者：
W. Herrnkind
中科院分区：
文献类型：
--
作者：
A. Rudloe;W. Herrnkind
1)马蹄蟹，鲎，出现在交配对桑迪产卵，然后返回近海。快速离岸运动表现在逃避反应。在近海岸环境中存在各种潜在的合适的定向路标，包括视觉线索、底坡、波浪浪涌和引导此类运动的水流。2)进行了一系列的实验中，马蹄蟹标记与聚苯乙烯泡沫塑料浮子和释放在附近的已知的繁殖海滩在不同的条件下的浪涌，电流，底坡和浊度。每隔一分钟记录移动方向（解释为逃逸移动），持续十分钟，并将每只螃蟹的最后五个方位取平均值并绘图。3)运动的方向最密切相关的波涌的方向，即使在存在的底坡和电流。马蹄蟹在无涌浪的情况下呈随机分布，但在无涌浪的情况下，马蹄蟹通常保持相对稳定的分布。
1) Horseshoe crabs, Limulus polyphemus, emerge in mating pairs on sandy beaches to lay eggs then return offshore. Rapid offshore locomotion is exhibited during escape responses. A variety of potentially suitable orientational guideposts exist in the near‐shore environment, including visual cues, bottom slope, wave surge and currents to direct such movements. 2) A series of experiments was performed in which horseshoe crabs were tagged with styrofoam floats and released in the vicinity of known breeding beaches under varying conditions of surge, current, bottom slope and turbidity. The direction of movement (interpreted as an escape movement) was recorded at one minute intervals for ten minutes and the last five bearings of each crab were averaged and plotted. 3) The direction of movement correlated most closely with the direction of wave surge even in the presence of bottom slope and currents. Horseshoe crabs distributed randomly in the absence of wave surge although they typically maintained relatively s...