Review of low-level bioacoustic behavior in wild cetaceans: conservation implications of possible sleeping behavior
Wright, A.J.; Akamatsu, T.; Mouritsen, K.N.; Sveegaard, S.; Dietz, R.; Teilmann, J. (2016). Review of low-level bioacoustic behavior in wild cetaceans: conservation implications of possible sleeping behavior, in: Popper, A.N. et al.The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875: pp. 1251-1258. http://dx.doi.org/10.1007/978-1-4939-2981-8_157
In: Popper, A.N.; Hawkins, A. (Ed.) (2016). The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875. Springer Science+Business Media, Inc: New York. ISBN 978-1-4939-2980-1. xxx, 1292 pp., meer
In: Advances in Experimental Medicine and Biology. Springer: Berlin. ISSN 0065-2598; e-ISSN 2214-8019, meer
Shallow, low-activity, low-biosonar parabolic-shaped dives were observed in biologging data from tagged harbor porpoises in Danish waters and identified as potential sleeping behavior. This behavioral state merits consideration in assessing the context for noise exposure and passive acoustic monitoring studies. Similar dives have also been reported for other cetacean species. The existence of low-level bioacoustic dives that may represent that sleeping has implications for the mitigation of not only noise exposure but also of bycatch as well as legal repercussions given the protected status of sleeping, as a part of resting, under many legislative regimes.
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