Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands
Abstract The minke whale is one of the most abundant species of baleen whales worldwide, yet is rarely sighted in subtropical waters. In the North Pacific, they produce a distinctive sound known as the “boing,” which can be used to acoustically localize individuals. A vessel‐based survey using both...
Published in: | Marine Mammal Science |
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crwiley:10.1111/mms.12397 2024-09-15T17:57:29+00:00 Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands Norris, Thomas F. Dunleavy, Kerry J. Yack, Tina M. Ferguson, Elizabeth L. U.S. Navy 2017 http://dx.doi.org/10.1111/mms.12397 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12397 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12397 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12397 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mms.12397 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 33, issue 2, page 574-592 ISSN 0824-0469 1748-7692 journal-article 2017 crwiley https://doi.org/10.1111/mms.12397 2024-06-25T04:12:55Z Abstract The minke whale is one of the most abundant species of baleen whales worldwide, yet is rarely sighted in subtropical waters. In the North Pacific, they produce a distinctive sound known as the “boing,” which can be used to acoustically localize individuals. A vessel‐based survey using both visual and passive acoustic monitoring was conducted during the spring of 2007 in a large (616,000 km 2 ) study area encompassing the Mariana Islands. We applied line transect methods to data collected from a towed hydrophone array to estimate the abundance of calling minke whales in our study area. No minke whales were sighted, but there were hundreds of acoustic detections of boings. Computer algorithms were developed to localize calling minke whales from acoustic recordings, resulting in over 30 independent localizations, a six‐fold increase over those estimated during the survey. The two best estimates of abundance of calling minke whales were determined to be 80 and 91 animals (0.13 and 0.15 animals per 1,000 km2, respectively; CV = 34%). These are the first density and abundance estimates for calling minke whales using towed hydrophone array surveys, and the first estimates for this species in the Mariana Islands region. These are considered minimum estimates of the true number of minke whales in the study area. Article in Journal/Newspaper baleen whales minke whale Wiley Online Library Marine Mammal Science 33 2 574 592 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The minke whale is one of the most abundant species of baleen whales worldwide, yet is rarely sighted in subtropical waters. In the North Pacific, they produce a distinctive sound known as the “boing,” which can be used to acoustically localize individuals. A vessel‐based survey using both visual and passive acoustic monitoring was conducted during the spring of 2007 in a large (616,000 km 2 ) study area encompassing the Mariana Islands. We applied line transect methods to data collected from a towed hydrophone array to estimate the abundance of calling minke whales in our study area. No minke whales were sighted, but there were hundreds of acoustic detections of boings. Computer algorithms were developed to localize calling minke whales from acoustic recordings, resulting in over 30 independent localizations, a six‐fold increase over those estimated during the survey. The two best estimates of abundance of calling minke whales were determined to be 80 and 91 animals (0.13 and 0.15 animals per 1,000 km2, respectively; CV = 34%). These are the first density and abundance estimates for calling minke whales using towed hydrophone array surveys, and the first estimates for this species in the Mariana Islands region. These are considered minimum estimates of the true number of minke whales in the study area. |
author2 |
U.S. Navy |
format |
Article in Journal/Newspaper |
author |
Norris, Thomas F. Dunleavy, Kerry J. Yack, Tina M. Ferguson, Elizabeth L. |
spellingShingle |
Norris, Thomas F. Dunleavy, Kerry J. Yack, Tina M. Ferguson, Elizabeth L. Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands |
author_facet |
Norris, Thomas F. Dunleavy, Kerry J. Yack, Tina M. Ferguson, Elizabeth L. |
author_sort |
Norris, Thomas F. |
title |
Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands |
title_short |
Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands |
title_full |
Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands |
title_fullStr |
Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands |
title_full_unstemmed |
Estimation of minke whale abundance from an acoustic line transect survey of the Mariana Islands |
title_sort |
estimation of minke whale abundance from an acoustic line transect survey of the mariana islands |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/mms.12397 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12397 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12397 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12397 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mms.12397 |
genre |
baleen whales minke whale |
genre_facet |
baleen whales minke whale |
op_source |
Marine Mammal Science volume 33, issue 2, page 574-592 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12397 |
container_title |
Marine Mammal Science |
container_volume |
33 |
container_issue |
2 |
container_start_page |
574 |
op_container_end_page |
592 |
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1810433625687064576 |