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在太平洋鱼 (Clupea pallasii) 的群体产卵活动期间,行为发生时间变化

Kyosuke Seki¹, Makoto Tomiyasu², Mitsuki Kuroda^3,4

¹Graduate School of Environmental Science, Hokkaido University, Hakodate, Hokkaido, Japan. seki112358@gmail.com.

Scientific reports

|April 2, 2025

概括

太平洋鱼 (Clupea pallasii) 呈现同步的繁殖行为,这对繁殖成功至关重要. 这项研究使用数据记录器来揭示在产卵事件期间细度的行为变化.

科学领域:

海洋生物学海洋生物学
动物行为动物行为
生殖生态学生殖生态学

背景情况:

太平洋鱼 (Clupea pallasii) 聚合以繁殖,但小组繁殖同步和在微小尺度上持久的精确机制尚不清楚.
直接观察这些行为具有挑战性,需要创新的方法来研究繁殖期间鱼类聚合动态.

研究的目的:

为了研究太平洋鱼在产卵过程中的细微的行为变化和同步.
阐明这种物种同步群体产卵行为背后的机制.

主要方法:

使用加速度数据记录器,将15只雄性和38只雌性太平洋鱼连接到一个大型实验水箱 (共911只鱼).
监测到个体鱼的行为和同步的加速变化随着时间的推移推断出群体化模式.

主要成果:

在最初的行为转变后30-40分钟内,在许多个体中观察到同步加速变化.
在这些行为变化中确定了周期性模式 (105-210分钟),表明了由费罗蒙触发的同步和习惯.
与特定的产卵行为相关的加速度变化:上升,磨削,基质测试和雌同体释放.

结论:

精细的行为同步对于太平洋鱼来说至关重要,以最大限度地提高受精率.
循环的产卵行为,可能由激素介导,优化伴生体释放时间,最大限度地减少浪费和增强生殖成功.

关键词:

生物测试是一种生物测试.群体繁殖群体繁殖产卵聚合产卵聚合产卵聚合产卵行为产卵行为

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