有证据表明,潮间鱼Fistulobalanus albicostatus的循环活动具有内生节律性
Aoi Katayama1, Hiroki Takekata2, Itsuki Kunita3
1Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, 903-0213, Okinawa, Japan.
Scientific reports
|December 18, 2025
概括
潮间鱼表现出灵活的潮节奏,使其食和繁殖活动适应环境暗示. 这种由内部生物钟驱动的行为可塑性,对于在动态的潮区生存至关重要.
科学领域:
- 海洋生物学 海洋生物学
- 时间生物学 时间生物学
- 动物行为 动物行为
背景情况:
- 潮间无脊椎动物与潮周期同步生物活动.
- 内部生物钟在这些同步活动中的作用在很大程度上仍未被探索.
研究的目的:
- 调查潮间鱼Fistulobalanus albicostatus的内外活动调节.
- 为了确定生物钟在多大程度上影响了与潮周期一致的行为.
主要方法:
- 巴纳克被暴露在受控的光暗 (LD),恒定的黑暗 (DD) 和恒定的光 (LL) 条件下.
- 在实验室条件下监测循环活动以观察节律模式.
- 使用统计分析 (雷利测试) 来评估相对于潮阶段的活动开始的聚类.
主要成果:
- 在LD下,鱼表现出24小时的活动节奏,在DD和LL下转移到两个12小时的峰值.
- 在LD下观察到的循环节律性在恒定条件下经常减少.
- 活动开始时,在特定的潮阶段出现了显著的聚类,表明稳定的循环节律.
结论:
- Fistulobalanus albicostatus具有塑性循环节律,证明了它对环境变化的适应能力.
- 响应潮线索的行为灵活性对于在潮间环境中生存至关重要.
- 潮的季节性可能会影响鱼对光处理和整体活动模式的反应.
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