Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation

The number and size of whale-watching and swim-with-cetacean vessels are increasing worldwide, but the noise impact on targeted species depends on vessel source characteristics, which remain largely unquantified. Here, we report the acoustic characteristics from 13 whale-watching vessels from Austra...

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Detalhes bibliográficos
Autores: Arranz Alonso, Patricia, Aguilar de Soto, Natacha, Madsen, Peter T., Sprogis, Kate R.
Tipo de documento: artigo
Data de publicação:2021
País:España
Recursos:Universidad de La Laguna (ULL)
Repositório:RIULL. Repositorio Institucional de la Universidad de La Laguna
OAI Identifier:oai:riull.ull.es:915/40700
Acesso em linha:http://riull.ull.es/xmlui/handle/915/40700
Access Level:Acceso aberto
Palavra-chave:Cetacean
Sustainable whale-watching
Vessel source level
Underwater noise
Swim-with-cetaceans
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spelling Whale-watch vessel noise levels with applications to whale-watching guidelines and conservationArranz Alonso, PatriciaAguilar de Soto, NatachaMadsen, Peter T.Sprogis, Kate R.CetaceanSustainable whale-watchingVessel source levelUnderwater noiseSwim-with-cetaceansThe number and size of whale-watching and swim-with-cetacean vessels are increasing worldwide, but the noise impact on targeted species depends on vessel source characteristics, which remain largely unquantified. Here, we report the acoustic characteristics from 13 whale-watching vessels from Australia and Canary Islands. Acoustic recorders were deployed to measure the frequency-weighted sound levels (for low [LF], mid [MF] and high frequency [HF] cetacean hearing types) of motor sailing, catamarans, and motor vessels operating at 4–8 kn representing the slow speed of whale-watch scenarios. The highest estimated source levels (SLs) were recorded from large catamarans with inboard engines (LF = 160 ± 3, MF = 148 ± 2, HF = 146 ± 2 dB re 1 µPa m). The lowest SLs were from smaller motor vessels and particularly by a hybrid vessel powered by electrical outboard engines (LF = 140 ± 3, MF = 136 ± 2, HF = 134 ± 2 dB re 1 µPa m). We demonstrate that at the same speed and distance, different vessels may produce very different received levels to the animals. To reduce disturbance to cetaceans we recommend tourism vessels meet a broadband (0.2–10 kHz) SL limit of <150 dB re 1 µPa (RMS) when within 500 m of cetaceans.Biología Animal y Edafología y GeologíaBIOECOMAC202520252021info:eu-repo/semantics/articleapplication/pdfhttp://riull.ull.es/xmlui/handle/915/40700reponame:RIULL. Repositorio Institucional de la Universidad de La Lagunainstname:Universidad de La Laguna (ULL)InglésMarine Policy 134 (2021) 104776Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ESoai:riull.ull.es:915/407002026-06-22T13:13:57Z
dc.title.none.fl_str_mv Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
title Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
spellingShingle Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
Arranz Alonso, Patricia
Cetacean
Sustainable whale-watching
Vessel source level
Underwater noise
Swim-with-cetaceans
title_short Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
title_full Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
title_fullStr Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
title_full_unstemmed Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
title_sort Whale-watch vessel noise levels with applications to whale-watching guidelines and conservation
dc.creator.none.fl_str_mv Arranz Alonso, Patricia
Aguilar de Soto, Natacha
Madsen, Peter T.
Sprogis, Kate R.
author Arranz Alonso, Patricia
author_facet Arranz Alonso, Patricia
Aguilar de Soto, Natacha
Madsen, Peter T.
Sprogis, Kate R.
author_role author
author2 Aguilar de Soto, Natacha
Madsen, Peter T.
Sprogis, Kate R.
author2_role author
author
author
dc.contributor.none.fl_str_mv Biología Animal y Edafología y Geología
BIOECOMAC
dc.subject.none.fl_str_mv Cetacean
Sustainable whale-watching
Vessel source level
Underwater noise
Swim-with-cetaceans
topic Cetacean
Sustainable whale-watching
Vessel source level
Underwater noise
Swim-with-cetaceans
description The number and size of whale-watching and swim-with-cetacean vessels are increasing worldwide, but the noise impact on targeted species depends on vessel source characteristics, which remain largely unquantified. Here, we report the acoustic characteristics from 13 whale-watching vessels from Australia and Canary Islands. Acoustic recorders were deployed to measure the frequency-weighted sound levels (for low [LF], mid [MF] and high frequency [HF] cetacean hearing types) of motor sailing, catamarans, and motor vessels operating at 4–8 kn representing the slow speed of whale-watch scenarios. The highest estimated source levels (SLs) were recorded from large catamarans with inboard engines (LF = 160 ± 3, MF = 148 ± 2, HF = 146 ± 2 dB re 1 µPa m). The lowest SLs were from smaller motor vessels and particularly by a hybrid vessel powered by electrical outboard engines (LF = 140 ± 3, MF = 136 ± 2, HF = 134 ± 2 dB re 1 µPa m). We demonstrate that at the same speed and distance, different vessels may produce very different received levels to the animals. To reduce disturbance to cetaceans we recommend tourism vessels meet a broadband (0.2–10 kHz) SL limit of <150 dB re 1 µPa (RMS) when within 500 m of cetaceans.
publishDate 2021
dc.date.none.fl_str_mv 2021
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://riull.ull.es/xmlui/handle/915/40700
url http://riull.ull.es/xmlui/handle/915/40700
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Marine Policy 134 (2021) 104776
dc.rights.none.fl_str_mv Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
rights_invalid_str_mv Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:RIULL. Repositorio Institucional de la Universidad de La Laguna
instname:Universidad de La Laguna (ULL)
instname_str Universidad de La Laguna (ULL)
reponame_str RIULL. Repositorio Institucional de la Universidad de La Laguna
collection RIULL. Repositorio Institucional de la Universidad de La Laguna
repository.name.fl_str_mv
repository.mail.fl_str_mv
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