Speed of sound in Euphausia superba
Speed of sound in Euphausia superba
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磷虾的声速
DOI：
10.1121/1.399436
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发表时间：
1990
影响因子：
2.4
通讯作者：
K. Foote
中科院分区：
文献类型：
--
作者：
K. Foote
用飞行时间法测定了南极磷虾体内纵向声波的传播速度。对不同组合的活磷虾进行了17次单独的测量，结果表明，在相同温度下，动物的声速比海水的声速高2.79±0.24%。平均长度为29.4 ~ 38.9 mm，平均长度为32.2 mm，平均长度为2.5 mm。平均长度为31 mm的磷虾对应的密度为1.0647±0.0069 g/cm3。测量温度从5.3到12.1°C不等；相应的盐度变化范围为32.5 ~ 33.87 ppt，也代表了环境状态。环境海水温度为2.0±0.3°C。
The speed of longitudinal sound waves in Antarctic krill has been measured by the time‐of‐flight method. The result of 17 separate measurement series on different assemblages of living krill is that the animal’s sound speed exceeds that of seawater at the same temperature by 2.79±0.24%. The mean lengths vary from 29.4 to 38.9 mm, with overall mean 32.2 and s.d. 2.5 mm. The corresponding density of krill of mean length 31 mm is 1.0647±0.0069 g/cm3 . Measurement temperatures varied from 5.3 to 12.1 °C; corresponding salinities varied from 32.5 to 33.87 ppt, which also represent the ambient state. The ambient sea temperature was 2.0±0.3 °C.