Detection of humpback whale (Megaptera novaeangliae) non-song vocalizations around the Vema Seamount, southeast Atlantic Ocean

被引:8
作者
Ross-Marsh, E. C. [1 ,5 ]
Elwen, S. H. [1 ,5 ]
Fearey, J. [2 ,5 ]
Thompson, K. F. [3 ,6 ]
Maack, T. [4 ]
Gridley, T. [1 ,5 ]
机构
[1] Univ Stellenbosch, Dept Bot & Zool, Stellenbosch, South Africa
[2] Univ Cape Town, Ctr Stat Ecol Environm & Conservat, Dept Stat Sci, Cape Town, Western Cape, South Africa
[3] Univ Exeter, Biosci, Devon, England
[4] Greenpeace Germany, Hongkongstr 10, D-20457 Hamburg, Germany
[5] Sea Search Res & Conservat NPC, 4 Bath Rd, Cape Town, South Africa
[6] Univ Exeter, Greenpeace Res Labs, Devon, England
来源
JASA EXPRESS LETTERS | 2022年 / 2卷 / 04期
关键词
BEAKED-WHALES; CALLS; REPERTOIRE; ABUNDANCE; PATTERNS; BEHAVIOR;
D O I
10.1121/10.0010072
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Humpback whales are a cosmopolitan, highly vocal species. Investigated here are their vocalizations recorded at the Vema Seamount (31 degrees 38 ' S, 08 degrees 20 ' E) from moored hydrophones in the austral spring of 2019. During the 11-d recording period over 600 non-song calls were detected. Calls were predominantly detected at night over three consecutive days. The most common calls were low, frequency-modulated sounds (whups). An impulsive sound (gunshot) previously unknown in humpback whales was also detected. The location and timing of the calls suggests that humpback whales may be using the Vema Seamount as a temporary stop on their migration to their polar feeding grounds. (c) 2022 Author(s).
引用
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页数:7
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