在自由活动的木头海中自愿深潜时心率的降低
Ayaka Saito1, Chihiro Kinoshita1, Kino Sakai1
1Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan.
The Journal of experimental biology
|March 5, 2024
概括
龙头海表现出潜水白心,潜水期间心率显著下降. 这种心强度随着潜水深度而变化,表明水生爬行动物的心血管反应受到调节.
科学领域:
- 海洋生物学 海洋生物学
- 生理学 生理学 生理学
- 动物行为 动物行为
背景情况:
- 呼吸空气的脊椎动物表现出潜水肌,其强度因哺乳动物和鸟类的潜水行为而异.
- 在深度,自然潜水期间,水生爬行动物的心率反应仍未得到充分研究.
研究的目的:
- 在自然条件下的深度潜水期间,研究海 (Caretta caretta) 的心率变化.
- 为了确定潜水勃心强度是否与木头海的潜水深度和潜水时间相关.
主要方法:
- 五只木头海配备了心电图,深度,温度和加速记录器.
- 录音机被部署了三天,然后自动脱离.
- 心率信号由的胎盘上的电极记录下来.
主要成果:
- 潜水期间的平均心率 (12.8±4.1次/分钟) 显著低于表面期间 (20.9±4.1次/分钟).
- 潜水期间的心率随潜水深度而变化,保持低于表面的心率.
- 在超过140米的深度,尽管脚中风率高,心率暂时下降到大约2次/分钟,尽管脚中风率高.
结论:
- 龙头海表现出显著的潜水肌梗塞.
- 龙头海的潜水白心强度是根据潜水深度调节的.
- 这些发现表明,在类似于海洋哺乳动物和鸟类的海中潜水时,心血管反应受到调节.
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