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Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data

Research output: Contribution to journalArticle

DOI

Standard

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; Sveegaard, Signe; Larsen, Finn.

In: Marine Ecology Progress Series, Vol. 555, 18.08.2016, p. 261-271.

Research output: Contribution to journalArticle

Harvard

Kindt-Larsen, L, Willestofte Berg, C, Tougaard, J, Kirk Sørensen, T, Geitner, K, Northridge, SP, 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

APA

Kindt-Larsen, L., Willestofte Berg, C., Tougaard, J., Kirk Sørensen, T., Geitner, K., Northridge, S. P., ... 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, 555, 261-271. https://doi.org/10.3354/meps11806

Vancouver

Kindt-Larsen L, Willestofte Berg C, Tougaard J, Kirk Sørensen T, Geitner K, Northridge SP et al. Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data. Marine Ecology Progress Series. 2016 Aug 18;555:261-271. https://doi.org/10.3354/meps11806

Author

Kindt-Larsen, Lotte ; Willestofte Berg, Casper ; Tougaard, Jakob ; Kirk Sørensen, Thomas ; Geitner, Kerstin ; Northridge, Simon Patrick ; Sveegaard, Signe ; Sveegaard, Signe ; Larsen, Finn. / Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data. In: Marine Ecology Progress Series. 2016 ; Vol. 555. pp. 261-271.

Bibtex - Download

@article{14023b08d27c4af7a128f4c82067645d,
title = "Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data",
abstract = "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 modelcan thus be used as a tool to identify areas of bycatch risk.",
keywords = "Harbour porpoise, Bycatch mitigation, REM, Natura 2000, Fisheries management",
author = "Lotte Kindt-Larsen and {Willestofte Berg}, Casper and Jakob Tougaard and {Kirk S{\o}rensen}, Thomas and Kerstin Geitner and Northridge, {Simon Patrick} and Signe Sveegaard and Signe Sveegaard and Finn Larsen",
year = "2016",
month = "8",
day = "18",
doi = "10.3354/meps11806",
language = "English",
volume = "555",
pages = "261--271",
journal = "Marine Ecology Progress Series",
issn = "0171-8630",
publisher = "Inter-Research",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Identification of high-risk areas for harbour porpoise Phocoena phocoena bycatch using remote electronic monitoring and satellite telemetry data

AU - Kindt-Larsen, Lotte

AU - Willestofte Berg, Casper

AU - Tougaard, Jakob

AU - Kirk Sørensen, Thomas

AU - Geitner, Kerstin

AU - Northridge, Simon Patrick

AU - Sveegaard, Signe

AU - Sveegaard, Signe

AU - Larsen, Finn

PY - 2016/8/18

Y1 - 2016/8/18

N2 - 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 modelcan thus be used as a tool to identify areas of bycatch risk.

AB - 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 modelcan thus be used as a tool to identify areas of bycatch risk.

KW - Harbour porpoise

KW - Bycatch mitigation

KW - REM

KW - Natura 2000

KW - Fisheries management

U2 - 10.3354/meps11806

DO - 10.3354/meps11806

M3 - Article

VL - 555

SP - 261

EP - 271

JO - Marine Ecology Progress Series

T2 - Marine Ecology Progress Series

JF - Marine Ecology Progress Series

SN - 0171-8630

ER -

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ID: 244842177