Quantifying harbour porpoise foraging behaviour in CPOD data
Harbour porpoises (Phocoena phocoena) are regularly monitored to assess how they are impacted by the construction and operation of offshore wind farms. A suitable method to do this is passive acoustic monitoring (PAM) by stationary hydrophones, for example CPODs. These devices provide information on...
Published in: | Proceedings of Meetings on Acoustics, 178th Meeting of the Acoustical Society of America |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Acoustical Society of America
2019
|
Subjects: | |
Online Access: | https://research.wur.nl/en/publications/quantifying-harbour-porpoise-foraging-behaviour-in-cpod-data https://doi.org/10.1121/2.0001214 |
id |
ftunivwagenin:oai:library.wur.nl:wurpubs/605285 |
---|---|
record_format |
openpolar |
spelling |
ftunivwagenin:oai:library.wur.nl:wurpubs/605285 2024-01-14T10:07:28+01:00 Quantifying harbour porpoise foraging behaviour in CPOD data Bergès, B.J.P. Geelhoed, Steve Scheidat, Meike Tougaard, Jakob 2019 application/pdf https://research.wur.nl/en/publications/quantifying-harbour-porpoise-foraging-behaviour-in-cpod-data https://doi.org/10.1121/2.0001214 en eng Acoustical Society of America https://edepot.wur.nl/581857 https://research.wur.nl/en/publications/quantifying-harbour-porpoise-foraging-behaviour-in-cpod-data doi:10.1121/2.0001214 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Proceedings of Meetings on Acoustics Life Science info:eu-repo/semantics/conferenceObject Article in monograph or in proceedings info:eu-repo/semantics/publishedVersion 2019 ftunivwagenin https://doi.org/10.1121/2.0001214 2023-12-20T23:15:52Z Harbour porpoises (Phocoena phocoena) are regularly monitored to assess how they are impacted by the construction and operation of offshore wind farms. A suitable method to do this is passive acoustic monitoring (PAM) by stationary hydrophones, for example CPODs. These devices provide information on echolocation click activity, which can then be analysed. Prey occurrence is considered one of the main drivers in porpoise distribution and successful feeding is vital to the fitness and survival of individual porpoises. Information on foraging behavior, however, is difficult to obtain in the field, in particular as animals feed under water. Harbour porpoise use narrow band high frequency signals in a sequence of clicks (called click trains) for echolocation, communication and foraging. The different behaviors are characterised by the modulation in time lag between clicks (inter-click interval). Using CPOD data collected in Dutch water during and after pile driving noise exposure, the present study first investigated different data processing methods for the quantification of foraging behavior. The results indicate that: (1) a click-based classification provides the best results (as opposed to using click trains), (2) foraging events could be detected in sufficient numbers to reveal patterns over time, such as correlation with pile driving activities. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena Wageningen UR (University & Research Centre): Digital Library Proceedings of Meetings on Acoustics, 178th Meeting of the Acoustical Society of America 39 070008 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Life Science |
spellingShingle |
Life Science Bergès, B.J.P. Geelhoed, Steve Scheidat, Meike Tougaard, Jakob Quantifying harbour porpoise foraging behaviour in CPOD data |
topic_facet |
Life Science |
description |
Harbour porpoises (Phocoena phocoena) are regularly monitored to assess how they are impacted by the construction and operation of offshore wind farms. A suitable method to do this is passive acoustic monitoring (PAM) by stationary hydrophones, for example CPODs. These devices provide information on echolocation click activity, which can then be analysed. Prey occurrence is considered one of the main drivers in porpoise distribution and successful feeding is vital to the fitness and survival of individual porpoises. Information on foraging behavior, however, is difficult to obtain in the field, in particular as animals feed under water. Harbour porpoise use narrow band high frequency signals in a sequence of clicks (called click trains) for echolocation, communication and foraging. The different behaviors are characterised by the modulation in time lag between clicks (inter-click interval). Using CPOD data collected in Dutch water during and after pile driving noise exposure, the present study first investigated different data processing methods for the quantification of foraging behavior. The results indicate that: (1) a click-based classification provides the best results (as opposed to using click trains), (2) foraging events could be detected in sufficient numbers to reveal patterns over time, such as correlation with pile driving activities. |
format |
Article in Journal/Newspaper |
author |
Bergès, B.J.P. Geelhoed, Steve Scheidat, Meike Tougaard, Jakob |
author_facet |
Bergès, B.J.P. Geelhoed, Steve Scheidat, Meike Tougaard, Jakob |
author_sort |
Bergès, B.J.P. |
title |
Quantifying harbour porpoise foraging behaviour in CPOD data |
title_short |
Quantifying harbour porpoise foraging behaviour in CPOD data |
title_full |
Quantifying harbour porpoise foraging behaviour in CPOD data |
title_fullStr |
Quantifying harbour porpoise foraging behaviour in CPOD data |
title_full_unstemmed |
Quantifying harbour porpoise foraging behaviour in CPOD data |
title_sort |
quantifying harbour porpoise foraging behaviour in cpod data |
publisher |
Acoustical Society of America |
publishDate |
2019 |
url |
https://research.wur.nl/en/publications/quantifying-harbour-porpoise-foraging-behaviour-in-cpod-data https://doi.org/10.1121/2.0001214 |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
Proceedings of Meetings on Acoustics |
op_relation |
https://edepot.wur.nl/581857 https://research.wur.nl/en/publications/quantifying-harbour-porpoise-foraging-behaviour-in-cpod-data doi:10.1121/2.0001214 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1121/2.0001214 |
container_title |
Proceedings of Meetings on Acoustics, 178th Meeting of the Acoustical Society of America |
container_volume |
39 |
container_start_page |
070008 |
_version_ |
1788061867428544512 |