Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus
Abstract Seismic surveys use airguns that emit low frequency high magnitude sound to detect subsea resources and to map seabed geology. The effect of seismic blasts on Calanus spp., a key food source for commercially important fish, was assessed in field experiments. Immediate mortality of copepods...
Published in: | ICES Journal of Marine Science |
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Language: | English |
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Oxford University Press (OUP)
2019
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsz126 http://academic.oup.com/icesjms/article-pdf/76/7/2033/31731333/fsz126.pdf |
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croxfordunivpr:10.1093/icesjms/fsz126 2024-09-30T14:33:21+00:00 Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus Fields, David M Handegard, Nils Olav Dalen, John Eichner, Christiane Malde, Ketil Karlsen, Ørjan Skiftesvik, Anne Berit Durif, Caroline M F Browman, Howard I Ratilal, Purnima Norwegian Institute of Marine Research’s Oil and Fish Programme US National Science Foundation 2019 http://dx.doi.org/10.1093/icesjms/fsz126 http://academic.oup.com/icesjms/article-pdf/76/7/2033/31731333/fsz126.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 76, issue 7, page 2033-2044 ISSN 1054-3139 1095-9289 journal-article 2019 croxfordunivpr https://doi.org/10.1093/icesjms/fsz126 2024-09-17T04:27:39Z Abstract Seismic surveys use airguns that emit low frequency high magnitude sound to detect subsea resources and to map seabed geology. The effect of seismic blasts on Calanus spp., a key food source for commercially important fish, was assessed in field experiments. Immediate mortality of copepods was significantly different from controls at distances of 5 m or less from the airguns. Mortality 1 week after the airgun blast was significantly higher—by 9% relative to controls—in the copepods placed 10 m from the airgun blast but was not significantly different from the controls at a distance of 20 m from the airgun blast. The increase in mortality—relative to controls—did not exceed 30% at any distance from the airgun blast. Only two genes changed in response to the airgun blast; however, their function is unknown. There were no sublethal effects of the seismic blasts on the escape performance or the sensory threshold needed to initiate an escape response at any of the distances from the airgun blast that were tested. Results from these experiments suggest that seismic blasts have limited effects on the mortality or escape response of Calanus sp. within 10 m of the blast and no measurable impact at greater distances. Article in Journal/Newspaper Calanus finmarchicus Copepods Oxford University Press ICES Journal of Marine Science 76 7 2033 2044 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Seismic surveys use airguns that emit low frequency high magnitude sound to detect subsea resources and to map seabed geology. The effect of seismic blasts on Calanus spp., a key food source for commercially important fish, was assessed in field experiments. Immediate mortality of copepods was significantly different from controls at distances of 5 m or less from the airguns. Mortality 1 week after the airgun blast was significantly higher—by 9% relative to controls—in the copepods placed 10 m from the airgun blast but was not significantly different from the controls at a distance of 20 m from the airgun blast. The increase in mortality—relative to controls—did not exceed 30% at any distance from the airgun blast. Only two genes changed in response to the airgun blast; however, their function is unknown. There were no sublethal effects of the seismic blasts on the escape performance or the sensory threshold needed to initiate an escape response at any of the distances from the airgun blast that were tested. Results from these experiments suggest that seismic blasts have limited effects on the mortality or escape response of Calanus sp. within 10 m of the blast and no measurable impact at greater distances. |
author2 |
Ratilal, Purnima Norwegian Institute of Marine Research’s Oil and Fish Programme US National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Fields, David M Handegard, Nils Olav Dalen, John Eichner, Christiane Malde, Ketil Karlsen, Ørjan Skiftesvik, Anne Berit Durif, Caroline M F Browman, Howard I |
spellingShingle |
Fields, David M Handegard, Nils Olav Dalen, John Eichner, Christiane Malde, Ketil Karlsen, Ørjan Skiftesvik, Anne Berit Durif, Caroline M F Browman, Howard I Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus |
author_facet |
Fields, David M Handegard, Nils Olav Dalen, John Eichner, Christiane Malde, Ketil Karlsen, Ørjan Skiftesvik, Anne Berit Durif, Caroline M F Browman, Howard I |
author_sort |
Fields, David M |
title |
Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus |
title_short |
Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus |
title_full |
Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus |
title_fullStr |
Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus |
title_full_unstemmed |
Airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod Calanus finmarchicus |
title_sort |
airgun blasts used in marine seismic surveys have limited effects on mortality, and no sublethal effects on behaviour or gene expression, in the copepod calanus finmarchicus |
publisher |
Oxford University Press (OUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1093/icesjms/fsz126 http://academic.oup.com/icesjms/article-pdf/76/7/2033/31731333/fsz126.pdf |
genre |
Calanus finmarchicus Copepods |
genre_facet |
Calanus finmarchicus Copepods |
op_source |
ICES Journal of Marine Science volume 76, issue 7, page 2033-2044 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsz126 |
container_title |
ICES Journal of Marine Science |
container_volume |
76 |
container_issue |
7 |
container_start_page |
2033 |
op_container_end_page |
2044 |
_version_ |
1811637264309026816 |