ECHOLOCATION RATES OF 2 HARBOR PORPOISES (PHOCOENA-PHOCOENA)

被引：20

作者：

AKAMATSU, T ^{[1
]}

HATAKEYAMA, Y ^{[1
]}

KOJIMA, T ^{[1
]}

SOEDA, H ^{[1
]}

机构：

[1] NIHON UNIV, COLL AGR & VET MED, SETAGAYA KU, TOKYO 154, JAPAN

来源：

MARINE MAMMAL SCIENCE | 1994年 / 10卷 / 04期

关键词：

ECHOLOCATION RATE; ACOUSTIC BEHAVIOR; HARBOR PORPOISE; PHOCOENA PHOCOENA; CLICKS; ECHOLOCATION; GILL NET; ACCIDENTAL CATCH;

D O I：

10.1111/j.1748-7692.1994.tb00497.x

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The rate of occurrence of click trains of two harbor porpoises (Phocoena phocoena) were counted during 14 nights. We developed an echolocation signal detection system that was harnessed to a porpoise and activated a light when the animal emitted an echolocation signal. This device, referred to as a click-light, detects echolocation signals above 150 dB re 1 mu Pa in the 28-180 kHz range. Echolocation rates, i.e., occurrences of click trains, changed frequently, ranging from 0 to 25 per minute. Echolocation rates were affected by feeding, individual difference, and enclosure type such 1 as the net enclosure and the pool. The porpoise echolocation rates seemed to show acclimation.

引用

页码：401 / 411

页数：11

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