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首页> 外文期刊>ICES Journal of Marine Science >Into a rhythm: diel activity patterns and behaviour in Mediterranean slipper lobsters, Scyllarides latus
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Into a rhythm: diel activity patterns and behaviour in Mediterranean slipper lobsters, Scyllarides latus

机译：成为一种节奏：地中海拖鞋龙虾，yl锦葵的diel活动模式和行为

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摘要

Although the natural history for Mediterranean slipper lobsters (Scyllarides latus) is well established, there exists a disproportionate lack of important biological and physiological data to verify many key traits, including to what extent endogenous rhythms modulate aspects of their behaviour. Although Scyllarids appear nocturnally active, few studies exist that quantify this tendency. Our overall objective was to test the hypothesis that adult slipper lobsters are nocturnal and to determine if their diel activity rhythms are under the influence of an endogenous circadian clock. In the laboratory, we exposed a total of 16 animals (CLavg = 92.6 +/- 6.6 mm; CL, carapace length) to a 12 : 12 light : dark (LD) cycle for 7-10 d, followed by *** constant dark (DD) for 15-20 d. Activity was assessed using a combination of time-lapse video and accelerometers. Of a total of 16 lobsters, we analysed data from 15 (one mortality). All 15 lobsters were evaluated using video. Thirteen of these lobsters were also evaluated using accelerometers. All lobsters were more active during night-time than during daytime and synchronized their activity to the LD cycle, expressing a diel activity pattern (tau = 24.04 +/- 0.13 h). In DD, lobsters maintained a circadian rhythm with a tau of 23.87 +/- 0.07 h. These findings may provide insight into the behaviour of these animals in their natural habitat and help explain their ability to anticipate dawn and dusk.
机译：尽管地中海拖鞋龙虾（Scyllarides latus）的自然历史已经很好地建立了，但是仍然不成比例地缺乏重要的生物学和生理数据来验证许多关键特征，包括内生节律在多大程度上调节了它们的行为。尽管Scylarids具有夜间活动性，但很少有研究可以量化这种趋势。我们的总体目标是检验成年拖鞋龙虾是否夜间活动​​的假说，并确定它们的diel活动节奏是否受内源性生物钟的影响。在实验室中，我们将总共16只动物（CLavg = 92.6 +/- 6.6 mm； CL，甲壳长度）暴露于12:12光照：黑暗（LD）循环7-10 d，然后保持恒定黑暗（DD）持续15-20 d。使用延时视频和加速度计的组合来评估活动。在总共16个龙虾中，我们分析了15个龙虾的数据（1个死亡率）。使用视频对所有15只龙虾进行了评估。还使用加速度计评估了这些龙虾中的13个。所有龙虾在夜间都比白天更活跃，并且将它们的活动与LD周期同步，表现出diel活动模式（tau = 24.04 +/- 0.13 h）。在DD中，龙虾维持昼夜节律，tau为23.87 +/- 0.07 h。这些发现可能有助于洞察这些动物在其自然栖息地中的行为，并有助于解释它们预测黎明和黄昏的能力。

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  • 来源
    《ICES Journal of Marine Science》 |2015年第1期|i147-i154|共8页
  • 作者

    Goldstein Jason S.; Dubofsky Elizabeth A.; Spanier Ehud;

  • 作者单位

    Univ Haifa, Leon H Charney Sch Marine Sci, Leon Recanati Inst Maritime Studies, IL-31999 Haifa, Israel|Univ Haifa, Leon H Charney Sch Marine Sci, Dept Maritime Civilizat, IL-31999 Haifa, Israel|Eastern Connecticut State Univ, Dept Biol, Willimantic, CT 06226 USA;

    New England Inst Technol, Dept Biol Sci, East Greenwich, RI USA;

    Univ Haifa, Leon H Charney Sch Marine Sci, Leon Recanati Inst Maritime Studies, IL-31999 Haifa, Israel|Univ Haifa, Leon H Charney Sch Marine Sci, Dept Maritime Civilizat, IL-31999 Haifa, Israel;

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  • 正文语种 eng
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  • 关键词

    biological clock; circadian; endogenous rhythms; light-dark cycles; scyllaridae;

    机译：生物钟;昼夜节律;内生节律;明暗周期;鞘翅目;

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