Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises
Assessments of the impact of offshore energy developments are constrained because it is not known whether fine-scale behavioral responses to noise lead to broader-scale displacement of protected small cetaceans. We used passive acoustic monitoring and digital aerial surveys to study changes in the o...
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ftzenodo:oai:zenodo.org:4991361 2023-06-06T11:58:34+02:00 Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises Thompson, Paul M. Brookes, Kate L. Graham, Isla M. Barton, Tim R. Needham, Keith Bradbury, Gareth Merchant, Nathan D. 2013-10-03 https://zenodo.org/record/4991361 https://doi.org/10.5061/dryad.hv4db unknown doi:10.1098/rspb.2013.2001 https://zenodo.org/communities/dryad https://zenodo.org/record/4991361 https://doi.org/10.5061/dryad.hv4db oai:zenodo.org:4991361 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Oil and gas exploration Marine mammal conservation acoustic disturbance Phocoena phocoena Marine spatial planning Holocene info:eu-repo/semantics/other dataset 2013 ftzenodo https://doi.org/10.5061/dryad.hv4db10.1098/rspb.2013.2001 2023-04-13T21:28:58Z Assessments of the impact of offshore energy developments are constrained because it is not known whether fine-scale behavioral responses to noise lead to broader-scale displacement of protected small cetaceans. We used passive acoustic monitoring and digital aerial surveys to study changes in the occurrence of harbour porpoises across a 2000 km2 study area during a commercial 2-D seismic survey in the North Sea. Acoustic and visual data provided evidence of group responses to air-gun noise from the 470 cu inch array over ranges of 5-10 km, at received peak-to-peak sound pressure levels of 165-172 dB re 1 µPa and sound exposure levels of 145-151 dB re. 1µPa2 s. However, animals were typically detected again at affected sites within a few hours, and the level of response declined through the 10 day survey. Overall, acoustic detections decreased significantly during the survey period in the impact area compared to a control area, but this effect was small in relation to natural variation. These results demonstrate that prolonged seismic survey noise did not lead to broader-scale displacement into sub-optimal or higher-risk habitats, and suggest that impact assessments should focus on sub-lethal effects resulting from changes in foraging performance of animals within affected sites. responses to seismic surveysZIP file containing 10 .txt data files as described in readme.txt Dataset Phocoena phocoena Zenodo |
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Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Oil and gas exploration Marine mammal conservation acoustic disturbance Phocoena phocoena Marine spatial planning Holocene |
spellingShingle |
Oil and gas exploration Marine mammal conservation acoustic disturbance Phocoena phocoena Marine spatial planning Holocene Thompson, Paul M. Brookes, Kate L. Graham, Isla M. Barton, Tim R. Needham, Keith Bradbury, Gareth Merchant, Nathan D. Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises |
topic_facet |
Oil and gas exploration Marine mammal conservation acoustic disturbance Phocoena phocoena Marine spatial planning Holocene |
description |
Assessments of the impact of offshore energy developments are constrained because it is not known whether fine-scale behavioral responses to noise lead to broader-scale displacement of protected small cetaceans. We used passive acoustic monitoring and digital aerial surveys to study changes in the occurrence of harbour porpoises across a 2000 km2 study area during a commercial 2-D seismic survey in the North Sea. Acoustic and visual data provided evidence of group responses to air-gun noise from the 470 cu inch array over ranges of 5-10 km, at received peak-to-peak sound pressure levels of 165-172 dB re 1 µPa and sound exposure levels of 145-151 dB re. 1µPa2 s. However, animals were typically detected again at affected sites within a few hours, and the level of response declined through the 10 day survey. Overall, acoustic detections decreased significantly during the survey period in the impact area compared to a control area, but this effect was small in relation to natural variation. These results demonstrate that prolonged seismic survey noise did not lead to broader-scale displacement into sub-optimal or higher-risk habitats, and suggest that impact assessments should focus on sub-lethal effects resulting from changes in foraging performance of animals within affected sites. responses to seismic surveysZIP file containing 10 .txt data files as described in readme.txt |
format |
Dataset |
author |
Thompson, Paul M. Brookes, Kate L. Graham, Isla M. Barton, Tim R. Needham, Keith Bradbury, Gareth Merchant, Nathan D. |
author_facet |
Thompson, Paul M. Brookes, Kate L. Graham, Isla M. Barton, Tim R. Needham, Keith Bradbury, Gareth Merchant, Nathan D. |
author_sort |
Thompson, Paul M. |
title |
Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises |
title_short |
Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises |
title_full |
Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises |
title_fullStr |
Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises |
title_full_unstemmed |
Data from: Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises |
title_sort |
data from: short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises |
publishDate |
2013 |
url |
https://zenodo.org/record/4991361 https://doi.org/10.5061/dryad.hv4db |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_relation |
doi:10.1098/rspb.2013.2001 https://zenodo.org/communities/dryad https://zenodo.org/record/4991361 https://doi.org/10.5061/dryad.hv4db oai:zenodo.org:4991361 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.hv4db10.1098/rspb.2013.2001 |
_version_ |
1767947276910592000 |