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Impulsive sounds produced by humpback whale surface active behavior recorded on acoustic tags and bottom‐moored recorders
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2023
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Source: Marine Mammal Science, 40(1), 302-308
[PDF-300.01 KB]
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Journal Title:Marine Mammal Science
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Description:Humpback whales (Megaptera novaeangliae), like some other cetacean species (e.g., killer whales, Orcinus orca, Jensen et al., 2020; bowhead whales, Balaena mysticetus, Würsig et al., 1989; dusky dolphins, Lagenorhynchus obscurus, Pearson, 2017) have been observed to produce percussive sounds by striking their entire bodies or a body part against the water surface. Occurring both in high-latitude feeding grounds and low-latitude breeding grounds, humpback whale percussive behaviors have been proposed to serve a communicative function (e.g., Dunlop et al., 2008; Kavanaugh et al., 2017; Whitehead, 1985). Yet more work is required to fully understand the function of these behaviors within different contexts, including occasions when visible observations are not feasible. Animal-borne sensor tags have dramatically expanded our understanding of animal behavior, including that of humpback whales. Recent advancements to tags have made it possible within a single tag to measure acoustic characteristics, track diving behavior and three-dimensional movements, and record video images. These data points in multiple domains, collected from the perspective of an individual animal, can provide contextualization of its behavior and clarify the sounds that are related to specific behaviors (Johnson et al., 2009; see also Cade et al., 2021), allowing for inferences from tags with more limited capabilities (e.g., those that record acoustics, dive, and 3D data but lack visual recording capabilities). Additionally, recent efforts in marine soundscape monitoring and integrated analysis are helping to elucidate features of soundscapes, which can help reveal trends in animal behavior and environmental conditions (McKenna et al., 2021). The current study combined data obtained using both methods to provide novel insights into humpback whale behavior and communication.
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Source:Marine Mammal Science, 40(1), 302-308
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ISSN:0824-0469;1748-7692;
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Rights Information:Accepted Manuscript
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Compliance:Library
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