Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data
ABSTRACT: The bycatch of harbour porpoise Phocoena phocoena is an issue of major concern for fisheries management and for porpoise conservation. We used high-resolution spatial and temporal data on porpoise abundance and fishing effort from the Danish Skagerrak Sea to identify areas with potentially...
Published in: | Marine Ecology Progress Series |
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Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2016
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/identification-of-highrisk-areas-for-harbour-porpoise-phocoena-phocoena-bycatch-using-remote-electronic-monitoring-and-satellite-telemetry-data(14023b08-d27c-4af7-a128-f4c82067645d).html https://doi.org/10.3354/meps11806 https://research-repository.st-andrews.ac.uk/bitstream/10023/23791/1/m555p261.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/14023b08-d27c-4af7-a128-f4c82067645d 2023-05-15T16:33:17+02:00 Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data Kindt-Larsen, Lotte Willestofte Berg, Casper Tougaard, Jakob Kirk Sørensen, Thomas Geitner, Kerstin Northridge, Simon Patrick Sveegaard, Signe Larsen, Finn 2016-08-18 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/identification-of-highrisk-areas-for-harbour-porpoise-phocoena-phocoena-bycatch-using-remote-electronic-monitoring-and-satellite-telemetry-data(14023b08-d27c-4af7-a128-f4c82067645d).html https://doi.org/10.3354/meps11806 https://research-repository.st-andrews.ac.uk/bitstream/10023/23791/1/m555p261.pdf eng eng info:eu-repo/semantics/openAccess Kindt-Larsen , L , Willestofte Berg , C , Tougaard , J , Kirk Sørensen , T , Geitner , K , Northridge , S P , Sveegaard , S , Sveegaard , S & Larsen , F 2016 , ' Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data ' , Marine Ecology Progress Series , vol. 555 , pp. 261-271 . https://doi.org/10.3354/meps11806 Harbour porpoise Bycatch mitigation REM Natura 2000 Fisheries management article 2016 ftunstandrewcris https://doi.org/10.3354/meps11806 2022-06-02T07:46:21Z ABSTRACT: The bycatch of harbour porpoise Phocoena phocoena is an issue of major concern for fisheries management and for porpoise conservation. We used high-resolution spatial and temporal data on porpoise abundance and fishing effort from the Danish Skagerrak Sea to identify areas with potentially higher and lower risk of porpoise bycatch. From May 2010 to April 2011, 4 commercial gillnet vessels were equipped with remote electronic monitoring (REM) systems. The REM system recorded time, GPS position and closed-circuit television (CCTV) footage of all gillnet hauls. REM data were used to identify fishing grounds, quantify fishing effort and document harbour porpoise bycatch. Movement data from 66 harbour porpoises equipped with satellite transmitters from 1997 to 2012 were used to model population density. A simple model was constructed to investigate the relationship between the response (number of individuals caught) and porpoise density and fishing effort described by net soak time, net string length and target species. Results showed that a model including both porpoise density and fishing effort data predicted bycatch better than models containing only one factor. We therefore conclude that porpoise telemetry or REM data allow for identification of areas of potential high and low bycatch risk, and better predictions are obtained when combining the 2 sources of data. The final model can thus be used as a tool to identify areas of bycatch risk. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena University of St Andrews: Research Portal Marine Ecology Progress Series 555 261 271 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Harbour porpoise Bycatch mitigation REM Natura 2000 Fisheries management |
spellingShingle |
Harbour porpoise Bycatch mitigation REM Natura 2000 Fisheries management Kindt-Larsen, Lotte Willestofte Berg, Casper Tougaard, Jakob Kirk Sørensen, Thomas Geitner, Kerstin Northridge, Simon Patrick Sveegaard, Signe Larsen, Finn Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data |
topic_facet |
Harbour porpoise Bycatch mitigation REM Natura 2000 Fisheries management |
description |
ABSTRACT: The bycatch of harbour porpoise Phocoena phocoena is an issue of major concern for fisheries management and for porpoise conservation. We used high-resolution spatial and temporal data on porpoise abundance and fishing effort from the Danish Skagerrak Sea to identify areas with potentially higher and lower risk of porpoise bycatch. From May 2010 to April 2011, 4 commercial gillnet vessels were equipped with remote electronic monitoring (REM) systems. The REM system recorded time, GPS position and closed-circuit television (CCTV) footage of all gillnet hauls. REM data were used to identify fishing grounds, quantify fishing effort and document harbour porpoise bycatch. Movement data from 66 harbour porpoises equipped with satellite transmitters from 1997 to 2012 were used to model population density. A simple model was constructed to investigate the relationship between the response (number of individuals caught) and porpoise density and fishing effort described by net soak time, net string length and target species. Results showed that a model including both porpoise density and fishing effort data predicted bycatch better than models containing only one factor. We therefore conclude that porpoise telemetry or REM data allow for identification of areas of potential high and low bycatch risk, and better predictions are obtained when combining the 2 sources of data. The final model can thus be used as a tool to identify areas of bycatch risk. |
format |
Article in Journal/Newspaper |
author |
Kindt-Larsen, Lotte Willestofte Berg, Casper Tougaard, Jakob Kirk Sørensen, Thomas Geitner, Kerstin Northridge, Simon Patrick Sveegaard, Signe Larsen, Finn |
author_facet |
Kindt-Larsen, Lotte Willestofte Berg, Casper Tougaard, Jakob Kirk Sørensen, Thomas Geitner, Kerstin Northridge, Simon Patrick Sveegaard, Signe Larsen, Finn |
author_sort |
Kindt-Larsen, Lotte |
title |
Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data |
title_short |
Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data |
title_full |
Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data |
title_fullStr |
Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data |
title_full_unstemmed |
Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data |
title_sort |
identification of high-risk areas for harbour porpoise phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data |
publishDate |
2016 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/identification-of-highrisk-areas-for-harbour-porpoise-phocoena-phocoena-bycatch-using-remote-electronic-monitoring-and-satellite-telemetry-data(14023b08-d27c-4af7-a128-f4c82067645d).html https://doi.org/10.3354/meps11806 https://research-repository.st-andrews.ac.uk/bitstream/10023/23791/1/m555p261.pdf |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
Kindt-Larsen , L , Willestofte Berg , C , Tougaard , J , Kirk Sørensen , T , Geitner , K , Northridge , S P , Sveegaard , S , Sveegaard , S & Larsen , F 2016 , ' Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data ' , Marine Ecology Progress Series , vol. 555 , pp. 261-271 . https://doi.org/10.3354/meps11806 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps11806 |
container_title |
Marine Ecology Progress Series |
container_volume |
555 |
container_start_page |
261 |
op_container_end_page |
271 |
_version_ |
1766022992263905280 |