Fin whale ( Balaenoptera physalus ) target strength measurements
Abstract Active acoustic techniques can be used to detect whales. The ability to detect whales from a moving vessel or stationary buoy could reduce conflicts between hazardous human activities and whales, enabling implementation of mitigation procedures. In order to identify acoustic targets correct...
Published in: | Marine Mammal Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2013
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/mms.12032 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12032 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12032 |
id |
crwiley:10.1111/mms.12032 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/mms.12032 2023-12-03T10:19:58+01:00 Fin whale ( Balaenoptera physalus ) target strength measurements Bernasconi, Matteo Patel, Ruben Nøttestad, Leif Brierley, Andrew S. 2013 http://dx.doi.org/10.1111/mms.12032 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12032 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12032 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 29, issue 3, page 371-388 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2013 crwiley https://doi.org/10.1111/mms.12032 2023-11-09T13:50:04Z Abstract Active acoustic techniques can be used to detect whales. The ability to detect whales from a moving vessel or stationary buoy could reduce conflicts between hazardous human activities and whales, enabling implementation of mitigation procedures. In order to identify acoustic targets correctly as whales, knowledge of whale target strength ( TS ) is required. Active acoustic detections of fin whales ( Balaenoptera physalus ) were made in the Norwegian Sea; acoustic data were collected using calibrated omnidirectional sonar, operating at a discrete frequency of 110 kH z. Three fin whales of similar size (estimated between 16 and 18 m total length) had an overall average TS for all insonified body aspects of −11.4 dB [95% CI −12.05, −10.8] at 110 kH z, with a total spread of nearly 14 dB . As expected, the received signals were stronger when the fin whales were insonified at broadside (−5.6 dB ). Individual fin whale TS varied by approximately 12 dB , probably due to variation in lung volume with breathing, and to dynamic swimming kinematics. Our TS values are consistent with values reported previously for other large whales. All data together pave the way for development of automated acoustic whale detection protocols that could aid whale conservation. Article in Journal/Newspaper Balaenoptera physalus Fin whale Norwegian Sea Wiley Online Library (via Crossref) Norwegian Sea Marine Mammal Science 29 3 371 388 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Bernasconi, Matteo Patel, Ruben Nøttestad, Leif Brierley, Andrew S. Fin whale ( Balaenoptera physalus ) target strength measurements |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Active acoustic techniques can be used to detect whales. The ability to detect whales from a moving vessel or stationary buoy could reduce conflicts between hazardous human activities and whales, enabling implementation of mitigation procedures. In order to identify acoustic targets correctly as whales, knowledge of whale target strength ( TS ) is required. Active acoustic detections of fin whales ( Balaenoptera physalus ) were made in the Norwegian Sea; acoustic data were collected using calibrated omnidirectional sonar, operating at a discrete frequency of 110 kH z. Three fin whales of similar size (estimated between 16 and 18 m total length) had an overall average TS for all insonified body aspects of −11.4 dB [95% CI −12.05, −10.8] at 110 kH z, with a total spread of nearly 14 dB . As expected, the received signals were stronger when the fin whales were insonified at broadside (−5.6 dB ). Individual fin whale TS varied by approximately 12 dB , probably due to variation in lung volume with breathing, and to dynamic swimming kinematics. Our TS values are consistent with values reported previously for other large whales. All data together pave the way for development of automated acoustic whale detection protocols that could aid whale conservation. |
format |
Article in Journal/Newspaper |
author |
Bernasconi, Matteo Patel, Ruben Nøttestad, Leif Brierley, Andrew S. |
author_facet |
Bernasconi, Matteo Patel, Ruben Nøttestad, Leif Brierley, Andrew S. |
author_sort |
Bernasconi, Matteo |
title |
Fin whale ( Balaenoptera physalus ) target strength measurements |
title_short |
Fin whale ( Balaenoptera physalus ) target strength measurements |
title_full |
Fin whale ( Balaenoptera physalus ) target strength measurements |
title_fullStr |
Fin whale ( Balaenoptera physalus ) target strength measurements |
title_full_unstemmed |
Fin whale ( Balaenoptera physalus ) target strength measurements |
title_sort |
fin whale ( balaenoptera physalus ) target strength measurements |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/mms.12032 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12032 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12032 |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Balaenoptera physalus Fin whale Norwegian Sea |
genre_facet |
Balaenoptera physalus Fin whale Norwegian Sea |
op_source |
Marine Mammal Science volume 29, issue 3, page 371-388 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12032 |
container_title |
Marine Mammal Science |
container_volume |
29 |
container_issue |
3 |
container_start_page |
371 |
op_container_end_page |
388 |
_version_ |
1784267368296349696 |