Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets
1. Entanglement in net fisheries (static and drift) is the largest known cause of direct anthropogenic mortality to many small cetacean species, including harbour porpoise ( Phocoena phocoena ), in UK waters. Despite this, little is known about the behaviour of small cetaceans in proximity to nets....
Published in: | Methods in Ecology and Evolution |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/passive-acoustic-tracking-of-the-threedimensional-movements-and-acoustic-behaviour-of-toothed-whales-in-close-proximity-to-static-nets(30004850-07ed-4eff-949b-778f4ff1cbd9).html https://doi.org/10.1111/2041-210X.13828 https://research-repository.st-andrews.ac.uk/bitstream/10023/25092/1/Macaulay_2022_Passive_acoustic_tracking_MIEE_13828_CCBY.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/30004850-07ed-4eff-949b-778f4ff1cbd9 2023-05-15T16:33:19+02:00 Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets MacAulay, Jamie Kingston, Al Coram, Alex Oswald, Michael Swift, Rene Gillespie, Doug Northridge, Simon 2022-06-06 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/passive-acoustic-tracking-of-the-threedimensional-movements-and-acoustic-behaviour-of-toothed-whales-in-close-proximity-to-static-nets(30004850-07ed-4eff-949b-778f4ff1cbd9).html https://doi.org/10.1111/2041-210X.13828 https://research-repository.st-andrews.ac.uk/bitstream/10023/25092/1/Macaulay_2022_Passive_acoustic_tracking_MIEE_13828_CCBY.pdf eng eng info:eu-repo/semantics/openAccess MacAulay , J , Kingston , A , Coram , A , Oswald , M , Swift , R , Gillespie , D & Northridge , S 2022 , ' Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets ' , Methods in Ecology and Evolution , vol. 13 , no. 6 , 13828 , pp. 1250-1264 . https://doi.org/10.1111/2041-210X.13828 Acoustic localisation Bycatch Gill net Harbour porpoise Passive acoustic monitoring article 2022 ftunstandrewcris https://doi.org/10.1111/2041-210X.13828 2022-07-21T07:01:41Z 1. Entanglement in net fisheries (static and drift) is the largest known cause of direct anthropogenic mortality to many small cetacean species, including harbour porpoise ( Phocoena phocoena ), in UK waters. Despite this, little is known about the behaviour of small cetaceans in proximity to nets. 2. We have developed a passive acoustic monitoring (PAM) system for tracking the fine-scale three-dimensional (3D) movements of echolocating cetaceans around actively fishing nets by localising their acoustic clicks. The system consists of two compact four-channel acoustic recorders with sample-synchronised sensor packages that use 3D motion tracking technology to accurately calculate log orientation, depth, water temperature and ambient light level. Two recorders were used in tandem, with each one attached to and floating above the net floatline. The system can be deployed during normal fishing operations by a trained researcher or experienced fisheries observer. Recordings were analysed in PAMGuard software and the 3D positions of echolocating animals in the vicinity of the system were calculated using an acoustic particle filter-based localisation method. 3. We present findings from four deployments in UK waters (each 1–2 days in duration) in which 12 distinct harbour porpoise encounters yielded a sufficient number of detected clicks to track their movements around the net. The tracks show a variety of behaviours, including multiple instances of animals actively foraging in close proximity to the fishing net. 4. We show that a relatively inexpensive PAM system, which is practical to deploy from active fishing vessels, is capable of providing highly detailed data on harbour porpoise behaviour around nets. As harbour porpoises are the one of the most difficult species to localise, this methodology is likely to be suitable for elucidating the behaviour of many other toothed whale species in a variety of situations. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena toothed whale toothed whales University of St Andrews: Research Portal Methods in Ecology and Evolution 13 6 1250 1264 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Acoustic localisation Bycatch Gill net Harbour porpoise Passive acoustic monitoring |
spellingShingle |
Acoustic localisation Bycatch Gill net Harbour porpoise Passive acoustic monitoring MacAulay, Jamie Kingston, Al Coram, Alex Oswald, Michael Swift, Rene Gillespie, Doug Northridge, Simon Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets |
topic_facet |
Acoustic localisation Bycatch Gill net Harbour porpoise Passive acoustic monitoring |
description |
1. Entanglement in net fisheries (static and drift) is the largest known cause of direct anthropogenic mortality to many small cetacean species, including harbour porpoise ( Phocoena phocoena ), in UK waters. Despite this, little is known about the behaviour of small cetaceans in proximity to nets. 2. We have developed a passive acoustic monitoring (PAM) system for tracking the fine-scale three-dimensional (3D) movements of echolocating cetaceans around actively fishing nets by localising their acoustic clicks. The system consists of two compact four-channel acoustic recorders with sample-synchronised sensor packages that use 3D motion tracking technology to accurately calculate log orientation, depth, water temperature and ambient light level. Two recorders were used in tandem, with each one attached to and floating above the net floatline. The system can be deployed during normal fishing operations by a trained researcher or experienced fisheries observer. Recordings were analysed in PAMGuard software and the 3D positions of echolocating animals in the vicinity of the system were calculated using an acoustic particle filter-based localisation method. 3. We present findings from four deployments in UK waters (each 1–2 days in duration) in which 12 distinct harbour porpoise encounters yielded a sufficient number of detected clicks to track their movements around the net. The tracks show a variety of behaviours, including multiple instances of animals actively foraging in close proximity to the fishing net. 4. We show that a relatively inexpensive PAM system, which is practical to deploy from active fishing vessels, is capable of providing highly detailed data on harbour porpoise behaviour around nets. As harbour porpoises are the one of the most difficult species to localise, this methodology is likely to be suitable for elucidating the behaviour of many other toothed whale species in a variety of situations. |
format |
Article in Journal/Newspaper |
author |
MacAulay, Jamie Kingston, Al Coram, Alex Oswald, Michael Swift, Rene Gillespie, Doug Northridge, Simon |
author_facet |
MacAulay, Jamie Kingston, Al Coram, Alex Oswald, Michael Swift, Rene Gillespie, Doug Northridge, Simon |
author_sort |
MacAulay, Jamie |
title |
Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets |
title_short |
Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets |
title_full |
Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets |
title_fullStr |
Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets |
title_full_unstemmed |
Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets |
title_sort |
passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets |
publishDate |
2022 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/passive-acoustic-tracking-of-the-threedimensional-movements-and-acoustic-behaviour-of-toothed-whales-in-close-proximity-to-static-nets(30004850-07ed-4eff-949b-778f4ff1cbd9).html https://doi.org/10.1111/2041-210X.13828 https://research-repository.st-andrews.ac.uk/bitstream/10023/25092/1/Macaulay_2022_Passive_acoustic_tracking_MIEE_13828_CCBY.pdf |
genre |
Harbour porpoise Phocoena phocoena toothed whale toothed whales |
genre_facet |
Harbour porpoise Phocoena phocoena toothed whale toothed whales |
op_source |
MacAulay , J , Kingston , A , Coram , A , Oswald , M , Swift , R , Gillespie , D & Northridge , S 2022 , ' Passive acoustic tracking of the three-dimensional movements and acoustic behaviour of toothed whales in close proximity to static nets ' , Methods in Ecology and Evolution , vol. 13 , no. 6 , 13828 , pp. 1250-1264 . https://doi.org/10.1111/2041-210X.13828 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/2041-210X.13828 |
container_title |
Methods in Ecology and Evolution |
container_volume |
13 |
container_issue |
6 |
container_start_page |
1250 |
op_container_end_page |
1264 |
_version_ |
1766023012165877760 |