Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins
Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins
复制标题
DOI：
10.1098/rstb.2020.0225
复制
发表时间：
2021-08-16
影响因子：
6.3
通讯作者：
Sakamoto, Kentaro Q.
中科院分区：
文献类型：
--
作者：
Aoki, Kagari;Watanabe, Yurie;Sakamoto, Kentaro Q.
对自由放养的鲸类动物进行心率监测以了解其行为生态学和潜水生理学具有挑战性。在这里，我们开发了一种简单、非侵入性的方法，使用心电图测量装置和配备电极的单个吸盘来监测鲸类动物的心率。将单极吸盘放置在圈养的里索海豚（Grampus griseus）和假虎鲸（Pseudorca crassidens）胸鳍后方的左侧体表；他们的心率被成功监测。我们观察到静止鲸鱼浮出水面时与呼吸相对应的大幅心率振荡（假虎鲸，平均 47 bpm，范围 20-75 bpm；里索海豚，平均 +/- s.d. 61 +/- 15 bpm，范围 28-120 bpm，n = 4 个体），这与窦性心律失常模式（静息性心动过速和 在其他鲸目动物中观察到呼吸暂停心动过缓）。呼吸后，心率立即迅速增加至呼吸前观察到的大约两倍。然后心率在 20-50 秒左右逐渐下降，并保持相对恒定，直到下一次呼吸。此外，我们成功地监测了自由游泳的里索海豚的心率。该一体式吸盘装置可在不束缚动物的情况下进行野外使用，有助于进一步了解散养鲸类的潜水生理。本文是主题“测量自由生活动物的生理学（第二部分）”的一部分。
Heart rate monitoring in free-ranging cetaceans to understand their behavioural ecology and diving physiology is challenging. Here, we developed a simple, non-invasive method to monitor the heart rate of cetaceans in the field using an electrocardiogram-measuring device and a single suction cup equipped with an electrode. The unipolar suction cup was placed on the left lateral body surface behind the pectoral fin of Risso's dolphins (Grampus griseus) and a false killer whale (Pseudorca crassidens) in captivity; their heart rate was successfully monitored. We observed large heart rate oscillations corresponding to respiration in the motionless whales during surfacing (a false killer whale, mean 47 bpm, range 20-75 bpm; Risso's dolphins, mean +/- s.d. 61 +/- 15 bpm, range 28-120 bpm, n = 4 individuals), which was consistent with the sinus arrhythmia pattern (eupneic tachycardia and apneic bradycardia) observed in other cetaceans. Immediately after respiration, the heart rate rapidly increased to approximately twice that observed prior to the breath. Heart rate then gradually decreased at around 20-50 s and remained relatively constant until the next breath. Furthermore, we successfully monitored the heart rate of a free-swimming Risso's dolphin. The all-in-one suction cup device is feasible for field use without restraining animals and is helpful in further understanding the diving physiology of free-ranging cetaceans. This article is part of the theme issue 'Measuring physiology in free-living animals (Part II)'.