HEART-RATE AND BODY-TEMPERATURE DURING FREE DIVING OF WEDDELL SEALS
HEART-RATE AND BODY-TEMPERATURE DURING FREE DIVING OF WEDDELL SEALS
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DOI：
10.1152/ajpregu.1987.253.2.r344
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发表时间：
1987-08-01
影响因子：
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通讯作者：
ZAPOL, WM
中科院分区：
文献类型：
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作者：
HILL, RD;SCHNEIDER, RC;ZAPOL, WM
我们已经开发并成功地使用了第一个微处理器控制的监测器收集数据的深度，心率和体温的一个胎儿和五个成年男性自由游泳威德尔海豹。成年海豹几乎总是在每次潜水开始时出现心动过缓，潜水> 20 min时平均心率显著降低（P > 0.999）。上升段心率明显高于下降段（P > 0.95）。海豹胎儿经历了缓慢的心动过缓发作时，它的母亲潜水;在潜水过程中，胎儿的心率下降了平均每分钟1.1次/分钟的潜水。胎心率一般为. apprx。10分钟恢复到潜水前的水平后，它的母亲浮出水面呼吸。一只成年雄性威德尔海豹的体温下降> 1.5 ℃。C从潜水前的静息水平开始下降> 15分钟，下降超过2.5度。C潜水前> 30分钟。
We have developed and successfully used the first microprocessor-controlled monitors for collection of data on depth, heart rate, and body temperature of one fetal and five adult male freely swimming Weddell seals. Adult seals almost invariably experienced a prompt bradycardia at the start of each dive, and the mean heart rate during diving was significantly lower for dives > 20 min (P > 0.999). The heart rate was also significantly greater during the ascent portion of dives when compared with a descent portion (P > 0.95). The fetal seal experienced a slow onset of bradycardia when its mother dived; during diving the fetal heart rate decreased by an average of 1.1 beats/min for each minute of the dive. The fetal heart rate generally took .apprx. 10 min to recover to predive levels after its mother resurfaced to breathe. The body temperature of one adult male Weddell seal showed a decrease of > 1.5.degree. C from resting levels before dives of > 15 min were initiated and a drop of over 2.degree. C before dives of > 30 min duration.