Development of a non-invasive heart rate measurement method for sea turtles with dense keratinous scutes through effective electrode placement by Ayaka Saito, Kino Sakai, Megumi Kawai, Lyu Lyu, Kazunari Kameda, Hiromi Kudo, Katsufumi Sato, Kentaro Q. Sakamoto

“…The measured heart rate of ten individuals during resting was 8.6 ± 2.9 (means ± s.d.) beats min−1 and that during moving was 12.2 ± 4.7 beats min−1, similar to those reported in a previous study involving the insertion of electrodes inside the body. …”
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