Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.

Some beaked whale species are susceptible to the detrimental effects of anthropogenic noise. Most studies have concentrated on the effects of military sonar, but other forms of acoustic disturbance (e.g. shipping noise) may disrupt behavior. An experiment involving the exposure of target whale group...

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Autores principales:	Enrico Pirotta, Rachael Milor, Nicola Quick, David Moretti, Nancy Di Marzio, Peter Tyack, Ian Boyd, Gordon Hastie
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/98eba4a664994b098bfac335309bd16a
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spelling	oai:doaj.org-article:98eba4a664994b098bfac335309bd16a2021-11-18T07:09:43ZVessel noise affects beaked whale behavior: results of a dedicated acoustic response study.1932-620310.1371/journal.pone.0042535https://doaj.org/article/98eba4a664994b098bfac335309bd16a2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22880022/?tool=EBIhttps://doaj.org/toc/1932-6203Some beaked whale species are susceptible to the detrimental effects of anthropogenic noise. Most studies have concentrated on the effects of military sonar, but other forms of acoustic disturbance (e.g. shipping noise) may disrupt behavior. An experiment involving the exposure of target whale groups to intense vessel-generated noise tested how these exposures influenced the foraging behavior of Blainville's beaked whales (Mesoplodon densirostris) in the Tongue of the Ocean (Bahamas). A military array of bottom-mounted hydrophones was used to measure the response based upon changes in the spatial and temporal pattern of vocalizations. The archived acoustic data were used to compute metrics of the echolocation-based foraging behavior for 16 targeted groups, 10 groups further away on the range, and 26 non-exposed groups. The duration of foraging bouts was not significantly affected by the exposure. Changes in the hydrophone over which the group was most frequently detected occurred as the animals moved around within a foraging bout, and their number was significantly less the closer the whales were to the sound source. Non-exposed groups also had significantly more changes in the primary hydrophone than exposed groups irrespective of distance. Our results suggested that broadband ship noise caused a significant change in beaked whale behavior up to at least 5.2 kilometers away from the vessel. The observed change could potentially correspond to a restriction in the movement of groups, a period of more directional travel, a reduction in the number of individuals clicking within the group, or a response to changes in prey movement.Enrico PirottaRachael MilorNicola QuickDavid MorettiNancy Di MarzioPeter TyackIan BoydGordon HastiePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 8, p e42535 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Enrico Pirotta Rachael Milor Nicola Quick David Moretti Nancy Di Marzio Peter Tyack Ian Boyd Gordon Hastie Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.
description	Some beaked whale species are susceptible to the detrimental effects of anthropogenic noise. Most studies have concentrated on the effects of military sonar, but other forms of acoustic disturbance (e.g. shipping noise) may disrupt behavior. An experiment involving the exposure of target whale groups to intense vessel-generated noise tested how these exposures influenced the foraging behavior of Blainville's beaked whales (Mesoplodon densirostris) in the Tongue of the Ocean (Bahamas). A military array of bottom-mounted hydrophones was used to measure the response based upon changes in the spatial and temporal pattern of vocalizations. The archived acoustic data were used to compute metrics of the echolocation-based foraging behavior for 16 targeted groups, 10 groups further away on the range, and 26 non-exposed groups. The duration of foraging bouts was not significantly affected by the exposure. Changes in the hydrophone over which the group was most frequently detected occurred as the animals moved around within a foraging bout, and their number was significantly less the closer the whales were to the sound source. Non-exposed groups also had significantly more changes in the primary hydrophone than exposed groups irrespective of distance. Our results suggested that broadband ship noise caused a significant change in beaked whale behavior up to at least 5.2 kilometers away from the vessel. The observed change could potentially correspond to a restriction in the movement of groups, a period of more directional travel, a reduction in the number of individuals clicking within the group, or a response to changes in prey movement.
format	article
author	Enrico Pirotta Rachael Milor Nicola Quick David Moretti Nancy Di Marzio Peter Tyack Ian Boyd Gordon Hastie
author_facet	Enrico Pirotta Rachael Milor Nicola Quick David Moretti Nancy Di Marzio Peter Tyack Ian Boyd Gordon Hastie
author_sort	Enrico Pirotta
title	Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.
title_short	Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.
title_full	Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.
title_fullStr	Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.
title_full_unstemmed	Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.
title_sort	vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/98eba4a664994b098bfac335309bd16a
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Vessel noise affects beaked whale behavior: results of a dedicated acoustic response study.

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