Masked hearing thresholds of a beluga whale (Delphinapterus leucas) in icebreaker noise

被引：43

作者：

Erbe, C

Farmer, DM

机构：

[1] Institute of Ocean Sciences, 9860 W Saanich Rd.

来源：

DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY | 1998年 / 45卷 / 07期

关键词：

D O I：

10.1016/S0967-0645(98)00027-7

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

An experiment is presented that measured masked hearing thresholds of a beluga whale at the Vancouver Aquarium. The masked signal was a typical beluga vocalization; the masking noise included two types of icebreaker noise and naturally occurring icecracking noise. Thresholds were measured behaviorally in a go/no-go paradigm. Results were that bubbler system noise exhibited the strongest masking effect with a critical noise-to-signal ratio of 15.4 dB. Propeller cavitation noise completely masked the vocalization for noise-to-signal ratios greater than 18.0 dB. Natural icecracking noise showed the least interference with a threshold at 29.0 dB. A psychophysical analysis indicated that the whale did not have a consistent decision bias. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1373 / 1388

页数：16

共 22 条

[1]

Au W.W. L., 1993, SONAR DOLPHINS, DOI [10.1007/978-1-4612-4356-4, DOI 10.1007/978-1-4612-4356-4]

[2] RECEIVING BEAM PATTERNS AND DIRECTIVITY INDEXES OF THE ATLANTIC BOTTLENOSE DOLPHIN TURSIOPS-TRUNCATUS [J].