A review of the effects of seismic surveys on marine mammals
This review highlights significant gaps in our knowledge of the effects of seismic air-gun noise on marine mammals. although the characteristics of the seismic signal at different ranges and depths and at higher frequencies are poorly understood, and there are often insufficient data to identify the...
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2003
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Online Access: | https://research-portal.st-andrews.ac.uk/en/publications/ef358f1f-3db3-4fd4-ab1f-575db6a1b17a https://doi.org/10.4031/002533203787536998 |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/ef358f1f-3db3-4fd4-ab1f-575db6a1b17a 2024-10-06T13:47:32+00:00 A review of the effects of seismic surveys on marine mammals Gordon, Jonathan Charles David Gillespie, D Potter, J Frantzis, A Simmonds, M P Swift, R Thompson, D 2003 https://research-portal.st-andrews.ac.uk/en/publications/ef358f1f-3db3-4fd4-ab1f-575db6a1b17a https://doi.org/10.4031/002533203787536998 eng eng https://research-portal.st-andrews.ac.uk/en/publications/ef358f1f-3db3-4fd4-ab1f-575db6a1b17a info:eu-repo/semantics/restrictedAccess Gordon , J C D , Gillespie , D , Potter , J , Frantzis , A , Simmonds , M P , Swift , R & Thompson , D 2003 , ' A review of the effects of seismic surveys on marine mammals ' , Marine Technology Society Journal , vol. 37 , no. 4 , pp. 16-34 . https://doi.org/10.4031/002533203787536998 article 2003 ftunstandrewcris https://doi.org/10.4031/002533203787536998 2024-09-11T23:41:06Z This review highlights significant gaps in our knowledge of the effects of seismic air-gun noise on marine mammals. although the characteristics of the seismic signal at different ranges and depths and at higher frequencies are poorly understood, and there are often insufficient data to identify the appropriate acoustic propagation models to apply in particular conditions, these uncertainties are modest compared with those associated with biological factors. Potential biological effects of air gun noise include physical/physiological effects, behavioral disruption, and indirect effects associated with altered prey availability physical/physiological effects could include hearing threshold shifts and auditory damage as well as non-auditory disruption, and can be directly caused by sound exposure or the result of behavioral changes in response to sounds, e.g. recent observations suggesting that exposure to loud noise may result in decompression sickness. Direct information on the extent to which seismic pulses could damage hearing are difficult to obtain and as a consequence the impacts on hearing remain poorly known. Behavioral data have been collected for a few species in a limited range of conditions. responses, including startle and fright, avoidance, and changes in behaviour and vocalization patterns, have been observed in baleen whales, odontocetes, and pinnipeds and in some case these have occurred at ranges of tens or hundreds of kilometers. however, behavioral observations are typically variable, some findings are contradictory, and the biological significance of these effects has not been measured. Where feeding, orientation, hazard avoidance, migration or social behaviour are altered, it is possible that populations could be adversely affected. There may also be serious long-term consequences due to chronic exposure, and sound could affect marine mammals indirectly by changing the accessibility of their prey species. A precautionary approach to management and regulation must be recommended. While such ... Article in Journal/Newspaper baleen whales University of St Andrews: Research Portal Marine Technology Society Journal 37 4 16 34 |
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Open Polar |
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University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
This review highlights significant gaps in our knowledge of the effects of seismic air-gun noise on marine mammals. although the characteristics of the seismic signal at different ranges and depths and at higher frequencies are poorly understood, and there are often insufficient data to identify the appropriate acoustic propagation models to apply in particular conditions, these uncertainties are modest compared with those associated with biological factors. Potential biological effects of air gun noise include physical/physiological effects, behavioral disruption, and indirect effects associated with altered prey availability physical/physiological effects could include hearing threshold shifts and auditory damage as well as non-auditory disruption, and can be directly caused by sound exposure or the result of behavioral changes in response to sounds, e.g. recent observations suggesting that exposure to loud noise may result in decompression sickness. Direct information on the extent to which seismic pulses could damage hearing are difficult to obtain and as a consequence the impacts on hearing remain poorly known. Behavioral data have been collected for a few species in a limited range of conditions. responses, including startle and fright, avoidance, and changes in behaviour and vocalization patterns, have been observed in baleen whales, odontocetes, and pinnipeds and in some case these have occurred at ranges of tens or hundreds of kilometers. however, behavioral observations are typically variable, some findings are contradictory, and the biological significance of these effects has not been measured. Where feeding, orientation, hazard avoidance, migration or social behaviour are altered, it is possible that populations could be adversely affected. There may also be serious long-term consequences due to chronic exposure, and sound could affect marine mammals indirectly by changing the accessibility of their prey species. A precautionary approach to management and regulation must be recommended. While such ... |
format |
Article in Journal/Newspaper |
author |
Gordon, Jonathan Charles David Gillespie, D Potter, J Frantzis, A Simmonds, M P Swift, R Thompson, D |
spellingShingle |
Gordon, Jonathan Charles David Gillespie, D Potter, J Frantzis, A Simmonds, M P Swift, R Thompson, D A review of the effects of seismic surveys on marine mammals |
author_facet |
Gordon, Jonathan Charles David Gillespie, D Potter, J Frantzis, A Simmonds, M P Swift, R Thompson, D |
author_sort |
Gordon, Jonathan Charles David |
title |
A review of the effects of seismic surveys on marine mammals |
title_short |
A review of the effects of seismic surveys on marine mammals |
title_full |
A review of the effects of seismic surveys on marine mammals |
title_fullStr |
A review of the effects of seismic surveys on marine mammals |
title_full_unstemmed |
A review of the effects of seismic surveys on marine mammals |
title_sort |
review of the effects of seismic surveys on marine mammals |
publishDate |
2003 |
url |
https://research-portal.st-andrews.ac.uk/en/publications/ef358f1f-3db3-4fd4-ab1f-575db6a1b17a https://doi.org/10.4031/002533203787536998 |
genre |
baleen whales |
genre_facet |
baleen whales |
op_source |
Gordon , J C D , Gillespie , D , Potter , J , Frantzis , A , Simmonds , M P , Swift , R & Thompson , D 2003 , ' A review of the effects of seismic surveys on marine mammals ' , Marine Technology Society Journal , vol. 37 , no. 4 , pp. 16-34 . https://doi.org/10.4031/002533203787536998 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/publications/ef358f1f-3db3-4fd4-ab1f-575db6a1b17a |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.4031/002533203787536998 |
container_title |
Marine Technology Society Journal |
container_volume |
37 |
container_issue |
4 |
container_start_page |
16 |
op_container_end_page |
34 |
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1812175739426963456 |