Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations
Soundscapes with minimal anthropogenic noise sources are key for the survival and effective communication of marine mammals. The Gulf of Tribugá is part of the breeding ground for humpback whale Stock G. Currently, no large-scale infrastructure exists on the Gulf's coastline, making it an area...
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Frontiers Media S.A.
2021
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Online Access: | https://doi.org/10.3389/fmars.2021.623724 https://doaj.org/article/657083d134bb4ed29c714b8d61b5c783 |
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ftdoajarticles:oai:doaj.org/article:657083d134bb4ed29c714b8d61b5c783 2023-05-15T16:35:46+02:00 Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations Maria Paula Rey-Baquero Laura Valentina Huertas-Amaya Kerri D. Seger Natalia Botero-Acosta Andrea Luna-Acosta Christina E. Perazio John K. Boyle Sarah Rosenthal Ann Carole Vallejo 2021-03-01T00:00:00Z https://doi.org/10.3389/fmars.2021.623724 https://doaj.org/article/657083d134bb4ed29c714b8d61b5c783 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2021.623724/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.623724 https://doaj.org/article/657083d134bb4ed29c714b8d61b5c783 Frontiers in Marine Science, Vol 8 (2021) Gulf of Tribugá Colombia inter-unit interval whale-watching humpback whale song masking Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2021 ftdoajarticles https://doi.org/10.3389/fmars.2021.623724 2022-12-31T09:40:28Z Soundscapes with minimal anthropogenic noise sources are key for the survival and effective communication of marine mammals. The Gulf of Tribugá is part of the breeding ground for humpback whale Stock G. Currently, no large-scale infrastructure exists on the Gulf's coastline, making it an area with high biodiversity and little anthropogenic noise. Whale-watching is one of the few human activities that contributes to the soundscape. By Morro Mico, on the southern limit of the Utría Natural National Park, an Ecological Acoustic Recorder (EAR, Oceanwide Science Institute) was deployed in the Gulf to record samples of acoustic activity from October to November 2018. It recorded for 10-min intervals with 20-min lapses for a duty cycle of 33.3%. One of the common peak frequencies of humpback whale song units from these recordings was used as input to an acoustic propagation model using the parabolic equation to simulate the communication space of a humpback whale when zero, one, and two boats are present. GPS positions of theodolite data from various whale watching scenarios in the Gulf were used to inform the models. Model results indicate that humpback whale song communication space could be reduced by as much as 63% in the presence of even one whale-watching boat. The boats traveling through the Gulf are the same as those used in whale-watching, and their engine noise while passing Morro Mico coincided with song structural and temporal changes observed in the acoustic data. Combining in situ data with acoustic models can advance the understanding of the spatio-temporal acoustic reactions of whales when their vocalizations are masked by boat noise. This project serves as an approximation of how humpback whale Stock G may respond to whale-watching vessel noise in the Gulf of Tribugá. Article in Journal/Newspaper Humpback Whale Directory of Open Access Journals: DOAJ Articles Pacific Morro ENVELOPE(-57.500,-57.500,-63.833,-63.833) Frontiers in Marine Science 8 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Gulf of Tribugá Colombia inter-unit interval whale-watching humpback whale song masking Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Gulf of Tribugá Colombia inter-unit interval whale-watching humpback whale song masking Science Q General. Including nature conservation geographical distribution QH1-199.5 Maria Paula Rey-Baquero Laura Valentina Huertas-Amaya Kerri D. Seger Natalia Botero-Acosta Andrea Luna-Acosta Christina E. Perazio John K. Boyle Sarah Rosenthal Ann Carole Vallejo Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations |
topic_facet |
Gulf of Tribugá Colombia inter-unit interval whale-watching humpback whale song masking Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Soundscapes with minimal anthropogenic noise sources are key for the survival and effective communication of marine mammals. The Gulf of Tribugá is part of the breeding ground for humpback whale Stock G. Currently, no large-scale infrastructure exists on the Gulf's coastline, making it an area with high biodiversity and little anthropogenic noise. Whale-watching is one of the few human activities that contributes to the soundscape. By Morro Mico, on the southern limit of the Utría Natural National Park, an Ecological Acoustic Recorder (EAR, Oceanwide Science Institute) was deployed in the Gulf to record samples of acoustic activity from October to November 2018. It recorded for 10-min intervals with 20-min lapses for a duty cycle of 33.3%. One of the common peak frequencies of humpback whale song units from these recordings was used as input to an acoustic propagation model using the parabolic equation to simulate the communication space of a humpback whale when zero, one, and two boats are present. GPS positions of theodolite data from various whale watching scenarios in the Gulf were used to inform the models. Model results indicate that humpback whale song communication space could be reduced by as much as 63% in the presence of even one whale-watching boat. The boats traveling through the Gulf are the same as those used in whale-watching, and their engine noise while passing Morro Mico coincided with song structural and temporal changes observed in the acoustic data. Combining in situ data with acoustic models can advance the understanding of the spatio-temporal acoustic reactions of whales when their vocalizations are masked by boat noise. This project serves as an approximation of how humpback whale Stock G may respond to whale-watching vessel noise in the Gulf of Tribugá. |
format |
Article in Journal/Newspaper |
author |
Maria Paula Rey-Baquero Laura Valentina Huertas-Amaya Kerri D. Seger Natalia Botero-Acosta Andrea Luna-Acosta Christina E. Perazio John K. Boyle Sarah Rosenthal Ann Carole Vallejo |
author_facet |
Maria Paula Rey-Baquero Laura Valentina Huertas-Amaya Kerri D. Seger Natalia Botero-Acosta Andrea Luna-Acosta Christina E. Perazio John K. Boyle Sarah Rosenthal Ann Carole Vallejo |
author_sort |
Maria Paula Rey-Baquero |
title |
Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations |
title_short |
Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations |
title_full |
Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations |
title_fullStr |
Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations |
title_full_unstemmed |
Understanding Effects of Whale-Watching Vessel Noise on Humpback Whale Song in the North Pacific Coast of Colombia With Propagation Models of Masking and Acoustic Data Observations |
title_sort |
understanding effects of whale-watching vessel noise on humpback whale song in the north pacific coast of colombia with propagation models of masking and acoustic data observations |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.623724 https://doaj.org/article/657083d134bb4ed29c714b8d61b5c783 |
long_lat |
ENVELOPE(-57.500,-57.500,-63.833,-63.833) |
geographic |
Pacific Morro |
geographic_facet |
Pacific Morro |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_source |
Frontiers in Marine Science, Vol 8 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2021.623724/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.623724 https://doaj.org/article/657083d134bb4ed29c714b8d61b5c783 |
op_doi |
https://doi.org/10.3389/fmars.2021.623724 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
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1766026070859972608 |