Daily and Tidal Components in the Persistent Rhythmic Activity of the Crab, Sesarma
Daily and Tidal Components in the Persistent Rhythmic Activity of the Crab, Sesarma
复制标题
螃蟹 Sesarma 持续节律活动中的每日和潮汐成分
作者：
J. Palmer
在潮间带生物中，各种生理功能进行的速率通常与潮汐状态有关。在环境条件随着潮水涨落而发生剧烈变化的栖息地，这并不特别令人惊讶。值得注意的是，当生物体被转移到实验室中的非潮汐恒定条件下时，许多这些功能的速率继续与潮汐大致同步地波动。这些持续的波动被称为潮汐或双峰太阴日节律。例如，持续的潮汐节律已被描述为螃蟹的耗氧量。涡虫2和硅藻3的垂直迁移；螃蟹颜色变化4；螃蟹5,6、片足类7,8和鱼类9的自发活动；和贻贝的过滤率10。
IN intertidal organisms the rates at which various physiological functions proceed are often related to the state of the tide. In a habitat in which environmental conditions change so drastically with the ebb and flow of the tidal waters, this is not particularly surprising. What is remarkable is that the rate of many of these functions continues to vacillate in approximate synchrony with the tide when organisms are removed to non-tidal, constant conditions in the laboratory. These persistent vacillations are referred to as tidal or bimodal lunar day rhythms. By way of example, persistent tidal rhythms have been described for oxygen consumption in crabs1; vertical migrations of planarians2 and diatoms3; colour change in crabs4; spontaneous activity in crabs5,6, amphipods7,8, and fish9; and filtration rate in mussels10.