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首页> 外文期刊>Marine and Freshwater Behaviour and Physiology >The effects of water pressure, temperature, and current cycles on circatidal rhythms expressed by the American horseshoe crab, Limulus polyphemus
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The effects of water pressure, temperature, and current cycles on circatidal rhythms expressed by the American horseshoe crab, Limulus polyphemus

机译：水压，温度和水流周期对美洲horse蟹poly poly表达的节律的影响

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The American horseshoe crab, Limulus polyphemus, expresses tidal rhythms of locomotion that can be entrained to cyclic fluctuations in water depth, but the ability of other tidal cues to entrain locomotor activity has not been assessed. In this study, tidal inundation cycles of ~12.4h delivered in the laboratory clearly entrained the locomotor patterns of most animals. However, smaller amplitude water level fluctuations and large amplitude temperature cycles (10℃) were less successful while small-amplitude temperature fluctuations (3℃) and current cycles (0.3 ms~(-1)) were unsuccessful. In the field, animals confined to modified running wheels expressed rhythms of locomotor activity that were clearly synchronized with the tides, but only if they were allowed to experience water level changes. Overall, these results suggest a hierarchy among potential tidal entrainment cues: inundation and water level changes are of primary importance, while other factors such as current and temperature changes appear to play secondary roles.
机译：美国的crab蟹，poly多毛Li，表现出可以随水深周期性波动而运动的潮汐节律，但尚未评估其他潮汐线索引起运动能力的能力。在这项研究中，实验室中大约12.4h的潮汐淹没周期清楚地带动了大多数动物的运动模式。然而，较小幅度的水位波动和较大幅度的温度周期（10℃）不太成功，而较小幅度的温度波动（3℃）和电流周期（0.3 ms〜（-1））则不成功。在野外，仅限于改型的行走轮的动物表现出运动活动的节奏，与潮汐明显同步，但前提是允许它们经历水位变化。总体而言，这些结果暗示了潜在的潮气夹带线索之间的层次：淹没和水位变化是最重要的，而其他因素（例如电流和温度变化）似乎起着次要作用。

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