Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland
<qd> Graham, I. M., Harris, R. N., Denny, B., Fowden, D., and Pullan, D. 2009. Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland. – ICES Journal of Marine Science, 66: 860–864. </qd>In Scotland, there is frequent conflic...
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fthighwire:oai:open-archive.highwire.org:icesjms:66/5/860 2023-05-15T15:31:45+02:00 Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland Graham, Isla M. Harris, Robert N. Denny, Becks Fowden, Dan Pullan, Dave 2009-06-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/66/5/860 https://doi.org/10.1093/icesjms/fsp111 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/66/5/860 http://dx.doi.org/10.1093/icesjms/fsp111 Copyright (C) 2009, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2009 fthighwire https://doi.org/10.1093/icesjms/fsp111 2009-07-03T20:24:12Z <qd> Graham, I. M., Harris, R. N., Denny, B., Fowden, D., and Pullan, D. 2009. Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland. – ICES Journal of Marine Science, 66: 860–864. </qd>In Scotland, there is frequent conflict between salmon rod fisheries and seals, which is often managed by the shooting of seals in rivers, with potential negative impacts on protected populations of seals. Non-lethal devices have not been tested extensively in rivers as an alternative to shooting. Trials were carried out between January and May 2006 on the River North Esk and between October 2007 and February 2008 on the River Conon in northeast Scotland to examine the effectiveness of an acoustic deterrent device (ADD) at deterring seals from a specific area of river and as a barrier to the upstream movement of seals. The ADD was switched on and off alternately for periods of several days, and surveys were carried out to estimate the number of seals present within each river. The ADD had no significant effect on the absolute abundance of seals in the survey area in either river, but it did reduce seal movement upstream significantly, by ∼50% in both rivers. This reduction was constant over the 4-month period of both trials. The results suggest that ADDs might be a useful conservation tool in the management of seal–salmon conflicts, particularly in estuaries and rivers where the potential for adversely impacting cetaceans is limited. Text Atlantic salmon HighWire Press (Stanford University) ICES Journal of Marine Science 66 5 860 864 |
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English |
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Articles Graham, Isla M. Harris, Robert N. Denny, Becks Fowden, Dan Pullan, Dave Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland |
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<qd> Graham, I. M., Harris, R. N., Denny, B., Fowden, D., and Pullan, D. 2009. Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland. – ICES Journal of Marine Science, 66: 860–864. </qd>In Scotland, there is frequent conflict between salmon rod fisheries and seals, which is often managed by the shooting of seals in rivers, with potential negative impacts on protected populations of seals. Non-lethal devices have not been tested extensively in rivers as an alternative to shooting. Trials were carried out between January and May 2006 on the River North Esk and between October 2007 and February 2008 on the River Conon in northeast Scotland to examine the effectiveness of an acoustic deterrent device (ADD) at deterring seals from a specific area of river and as a barrier to the upstream movement of seals. The ADD was switched on and off alternately for periods of several days, and surveys were carried out to estimate the number of seals present within each river. The ADD had no significant effect on the absolute abundance of seals in the survey area in either river, but it did reduce seal movement upstream significantly, by ∼50% in both rivers. This reduction was constant over the 4-month period of both trials. The results suggest that ADDs might be a useful conservation tool in the management of seal–salmon conflicts, particularly in estuaries and rivers where the potential for adversely impacting cetaceans is limited. |
format |
Text |
author |
Graham, Isla M. Harris, Robert N. Denny, Becks Fowden, Dan Pullan, Dave |
author_facet |
Graham, Isla M. Harris, Robert N. Denny, Becks Fowden, Dan Pullan, Dave |
author_sort |
Graham, Isla M. |
title |
Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland |
title_short |
Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland |
title_full |
Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland |
title_fullStr |
Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland |
title_full_unstemmed |
Testing the effectiveness of an acoustic deterrent device for excluding seals from Atlantic salmon rivers in Scotland |
title_sort |
testing the effectiveness of an acoustic deterrent device for excluding seals from atlantic salmon rivers in scotland |
publisher |
Oxford University Press |
publishDate |
2009 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/66/5/860 https://doi.org/10.1093/icesjms/fsp111 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/66/5/860 http://dx.doi.org/10.1093/icesjms/fsp111 |
op_rights |
Copyright (C) 2009, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsp111 |
container_title |
ICES Journal of Marine Science |
container_volume |
66 |
container_issue |
5 |
container_start_page |
860 |
op_container_end_page |
864 |
_version_ |
1766362272802799616 |