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Harbor porpoise (Phocoena phocoena) reactions to pingers

Research output: Contribution to journalArticle

DOI

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Harbor porpoise (Phocoena phocoena) reactions to pingers. / Kindt-Larsen, Lotte; Willestofte Berg, Casper; Northridge, Simon Patrick; Larsen, Finn.

In: Marine Mammal Science, Vol. 35, No. 2, 04.2019, p. 552-573.

Research output: Contribution to journalArticle

Harvard

Kindt-Larsen, L, Willestofte Berg, C, Northridge, SP & Larsen, F 2019, 'Harbor porpoise (Phocoena phocoena) reactions to pingers' Marine Mammal Science, vol. 35, no. 2, pp. 552-573. https://doi.org/10.1111/mms.12552

APA

Kindt-Larsen, L., Willestofte Berg, C., Northridge, S. P., & Larsen, F. (2019). Harbor porpoise (Phocoena phocoena) reactions to pingers. Marine Mammal Science, 35(2), 552-573. https://doi.org/10.1111/mms.12552

Vancouver

Kindt-Larsen L, Willestofte Berg C, Northridge SP, Larsen F. Harbor porpoise (Phocoena phocoena) reactions to pingers. Marine Mammal Science. 2019 Apr;35(2):552-573. https://doi.org/10.1111/mms.12552

Author

Kindt-Larsen, Lotte ; Willestofte Berg, Casper ; Northridge, Simon Patrick ; Larsen, Finn. / Harbor porpoise (Phocoena phocoena) reactions to pingers. In: Marine Mammal Science. 2019 ; Vol. 35, No. 2. pp. 552-573.

Bibtex - Download

@article{f92e36f7fb3846d3b07074bef40bae83,
title = "Harbor porpoise (Phocoena phocoena) reactions to pingers",
abstract = "The use of acoustic alarms (pingers) has been mandated in several gill net fisheries around the world. Even though pingers have shown to reduce the incidental catch there are still questions to be answered in relation to effective range, habituation and displacement. In the present studies, the vocalization behavior of porpoises was recorded in response to two different pingers, AQUAmark100 (20–160 kHz) and AQUAmark300 (10 kHz). The Scottish experiment included an AQUAmark100 pinger running in on/off cycles. The pinger was placed in an array of acoustic click detectors (C‐PODs) spaced at different distances from the pinger. In Denmark, three experiments were conducted. One had the same AQUAmark100 pinger placed in a C‐POD array. The second and third experiment used an AQUAmark300 pinger running in on/off cycles. Both trial results of the AQUAmark100 revealed significant pinger reduction effects at 0, 200, and 400 m distance; however, the vocalization behavior reveal no signs of habituation. The studies of the AQUAmark300 revealed a significant pinger effect at 0 m distance and either none or 17{\%} reduction at 300 m distance. At one station, however, habituation effects were found indicated by an increase in clicks over time. These results are important in relation to pinger use and thus fisheries management.",
keywords = "Harbor porpoise, Phocoena phocoena, Pinger, Natura2000, Habituation, Pinger effect, Habitat exclusion, Porpoise management",
author = "Lotte Kindt-Larsen and {Willestofte Berg}, Casper and Northridge, {Simon Patrick} and Finn Larsen",
note = "Finally, we would like to thank the Danish Ministry for Food, Agriculture and Fisheries and the European Fisheries Fund and DEFRA for funding the project.",
year = "2019",
month = "4",
doi = "10.1111/mms.12552",
language = "English",
volume = "35",
pages = "552--573",
journal = "Marine Mammal Science",
issn = "0824-0469",
publisher = "John Wiley & Sons, Ltd (10.1111)",
number = "2",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Harbor porpoise (Phocoena phocoena) reactions to pingers

AU - Kindt-Larsen, Lotte

AU - Willestofte Berg, Casper

AU - Northridge, Simon Patrick

AU - Larsen, Finn

N1 - Finally, we would like to thank the Danish Ministry for Food, Agriculture and Fisheries and the European Fisheries Fund and DEFRA for funding the project.

PY - 2019/4

Y1 - 2019/4

N2 - The use of acoustic alarms (pingers) has been mandated in several gill net fisheries around the world. Even though pingers have shown to reduce the incidental catch there are still questions to be answered in relation to effective range, habituation and displacement. In the present studies, the vocalization behavior of porpoises was recorded in response to two different pingers, AQUAmark100 (20–160 kHz) and AQUAmark300 (10 kHz). The Scottish experiment included an AQUAmark100 pinger running in on/off cycles. The pinger was placed in an array of acoustic click detectors (C‐PODs) spaced at different distances from the pinger. In Denmark, three experiments were conducted. One had the same AQUAmark100 pinger placed in a C‐POD array. The second and third experiment used an AQUAmark300 pinger running in on/off cycles. Both trial results of the AQUAmark100 revealed significant pinger reduction effects at 0, 200, and 400 m distance; however, the vocalization behavior reveal no signs of habituation. The studies of the AQUAmark300 revealed a significant pinger effect at 0 m distance and either none or 17% reduction at 300 m distance. At one station, however, habituation effects were found indicated by an increase in clicks over time. These results are important in relation to pinger use and thus fisheries management.

AB - The use of acoustic alarms (pingers) has been mandated in several gill net fisheries around the world. Even though pingers have shown to reduce the incidental catch there are still questions to be answered in relation to effective range, habituation and displacement. In the present studies, the vocalization behavior of porpoises was recorded in response to two different pingers, AQUAmark100 (20–160 kHz) and AQUAmark300 (10 kHz). The Scottish experiment included an AQUAmark100 pinger running in on/off cycles. The pinger was placed in an array of acoustic click detectors (C‐PODs) spaced at different distances from the pinger. In Denmark, three experiments were conducted. One had the same AQUAmark100 pinger placed in a C‐POD array. The second and third experiment used an AQUAmark300 pinger running in on/off cycles. Both trial results of the AQUAmark100 revealed significant pinger reduction effects at 0, 200, and 400 m distance; however, the vocalization behavior reveal no signs of habituation. The studies of the AQUAmark300 revealed a significant pinger effect at 0 m distance and either none or 17% reduction at 300 m distance. At one station, however, habituation effects were found indicated by an increase in clicks over time. These results are important in relation to pinger use and thus fisheries management.

KW - Harbor porpoise

KW - Phocoena phocoena

KW - Pinger

KW - Natura2000

KW - Habituation

KW - Pinger effect

KW - Habitat exclusion

KW - Porpoise management

U2 - 10.1111/mms.12552

DO - 10.1111/mms.12552

M3 - Article

VL - 35

SP - 552

EP - 573

JO - Marine Mammal Science

T2 - Marine Mammal Science

JF - Marine Mammal Science

SN - 0824-0469

IS - 2

ER -

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ID: 255764524