Click characteristics of northern bottlenose whales (Hyperoodon ampullatus) and Sowerby's beaked whales (Mesoplodon bidens) off eastern Canada

doi:10.1121/1.5111336

	Click characteristics of northern bottlenose whales (Hyperoodon ampullatus) and Sowerby's beaked whales (Mesoplodon bidens) off eastern Canada
	Clarke, Emma 1; Feyrer, Laura Joan 2; Moors-Murphy, Hilary 1; Stanistreet, Joy 1
刊名	JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
	2019-07
卷号	146 期号:1 页码:307-315
ISSN号	0001-4966
DOI	10.1121/1.5111336
英文摘要	Passive acoustic monitoring (PAM) is crucial to expanding the knowledge of beaked whales, including the northern bottlenose whale (Hyperoodon ampullatus) and Sowerby's beaked whale (Mesoplodon bidens). Existing descriptions of clicks produced by these species are limited by sample size, number of individuals recorded, and geographic scope. Data from multiple encounters in the western North Atlantic are used to provide a quantitative description of clicks produced by these species. Recordings from nine encounters with northern bottlenose whales in Nova Scotia and Newfoundland were analyzed (N = 2239 clicks). The click type described had a median peak frequency of 25.9 kHz (10th-90th percentile range: 22.9-29.3 kHz), and a median inter-click interval (ICI) of 402 ms (N = 1917, 10th-90th percentile range: 290-524 ms). Recordings from 18 Sowerby's beaked whale encounters from Nova Scotia were analyzed (N = 762 clicks). The click type described had a median peak frequency of 65.8 kHz (10th-90th percentile range: 61.5-76.5 kHz), and a median ICI of 237 ms (N = 677, 10th-90th percentile range: 130-315 ms). These results will contribute to the development of methods to detect and classify beaked whale clicks to the species level, improving the effectiveness of PAM and enhancing scientific understanding and conservation efforts for cryptic and at-risk cetaceans. (C) 2019 Acoustical Society of America.
WOS关键词	ECHOLOCATION CLICKS ; ABUNDANCE ; SIGNALS
WOS研究方向	Acoustics ; Audiology & Speech-Language Pathology
语种	英语
出版者	ACOUSTICAL SOC AMER AMER INST PHYSICS
WOS记录号	WOS:000478628800043
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24618]
专题	自然资源部第一海洋研究所
通讯作者	Clarke, Emma
作者单位	1.Fisheries & Oceans Canada, Bedford Inst Oceanog, 1 Challenger Dr, Dartmouth, NS B2Y 4A2, Canada 2.Dalhousie Univ, Dept Biol, 1355 Oxford St,POB 15000, Halifax, NS B3H 4R2, Canada
推荐引用方式 GB/T 7714	Clarke, Emma,Feyrer, Laura Joan,Moors-Murphy, Hilary,et al. Click characteristics of northern bottlenose whales (Hyperoodon ampullatus) and Sowerby's beaked whales (Mesoplodon bidens) off eastern Canada[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2019,146(1):307-315.
APA	Clarke, Emma,Feyrer, Laura Joan,Moors-Murphy, Hilary,&Stanistreet, Joy.(2019).Click characteristics of northern bottlenose whales (Hyperoodon ampullatus) and Sowerby's beaked whales (Mesoplodon bidens) off eastern Canada.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,146(1),307-315.
MLA	Clarke, Emma,et al."Click characteristics of northern bottlenose whales (Hyperoodon ampullatus) and Sowerby's beaked whales (Mesoplodon bidens) off eastern Canada".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 146.1(2019):307-315.