Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea
The harbor porpoise, Phocoena phocoena, is the only cetacean regularly occurring in the Baltic Sea. During the last decades, several anthropogenic activities have affected porpoises in the Baltic region. Most notably is bycatch in static fishing gear, such as gill nets, which is the main human-induc...
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Online Access: | https://portal.findresearcher.sdu.dk/da/publications/6ba566fd-1198-4e8b-9aeb-0bd518f2c7b3 https://doi.org/10.7717/peerj.12284 https://findresearcher.sdu.dk/ws/files/193965244/peerj_12284.pdf |
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ftsydanskunivpub:oai:sdu.dk:publications/6ba566fd-1198-4e8b-9aeb-0bd518f2c7b3 2024-05-19T07:47:22+00:00 Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea Brennecke, Dennis Wahlberg, Magnus Gilles, Anita Siebert, Ursula 2021-10 application/pdf https://portal.findresearcher.sdu.dk/da/publications/6ba566fd-1198-4e8b-9aeb-0bd518f2c7b3 https://doi.org/10.7717/peerj.12284 https://findresearcher.sdu.dk/ws/files/193965244/peerj_12284.pdf eng eng https://portal.findresearcher.sdu.dk/da/publications/6ba566fd-1198-4e8b-9aeb-0bd518f2c7b3 info:eu-repo/semantics/openAccess Brennecke , D , Wahlberg , M , Gilles , A & Siebert , U 2021 , ' Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea ' , PeerJ , vol. 9 , e12284 . https://doi.org/10.7717/peerj.12284 Abiotic factors Baltic Sea Bycatch Cetacean Fisheries Harbor porpoise Lunar cycle Marine mammals Phocoena phocoena article 2021 ftsydanskunivpub https://doi.org/10.7717/peerj.12284 2024-04-24T00:47:10Z The harbor porpoise, Phocoena phocoena, is the only cetacean regularly occurring in the Baltic Sea. During the last decades, several anthropogenic activities have affected porpoises in the Baltic region. Most notably is bycatch in static fishing gear, such as gill nets, which is the main human-induced cause of death in odontocetes. There is still considerable uncertainty about which factors influence the amount of bycatch. In the present study, we reviewed bycatch data collected from 1987 to 2016 from the southwestern Baltic Sea. There was a significant difference in bycatch due to seasonality and region, and there was a higher bycatch rate in juveniles than in adults. The only abiotic factor associated with bycatch was the lunar cycle, with more animals bycaught during a full moon. These results improve our understanding of which biotic and abiotic factors are associated with bycatch of Baltic harbor porpoises, which can be used to strengthen conservation endeavors such as managing fishing efforts. Article in Journal/Newspaper Phocoena phocoena University of Southern Denmark Research Portal PeerJ 9 e12284 |
institution |
Open Polar |
collection |
University of Southern Denmark Research Portal |
op_collection_id |
ftsydanskunivpub |
language |
English |
topic |
Abiotic factors Baltic Sea Bycatch Cetacean Fisheries Harbor porpoise Lunar cycle Marine mammals Phocoena phocoena |
spellingShingle |
Abiotic factors Baltic Sea Bycatch Cetacean Fisheries Harbor porpoise Lunar cycle Marine mammals Phocoena phocoena Brennecke, Dennis Wahlberg, Magnus Gilles, Anita Siebert, Ursula Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea |
topic_facet |
Abiotic factors Baltic Sea Bycatch Cetacean Fisheries Harbor porpoise Lunar cycle Marine mammals Phocoena phocoena |
description |
The harbor porpoise, Phocoena phocoena, is the only cetacean regularly occurring in the Baltic Sea. During the last decades, several anthropogenic activities have affected porpoises in the Baltic region. Most notably is bycatch in static fishing gear, such as gill nets, which is the main human-induced cause of death in odontocetes. There is still considerable uncertainty about which factors influence the amount of bycatch. In the present study, we reviewed bycatch data collected from 1987 to 2016 from the southwestern Baltic Sea. There was a significant difference in bycatch due to seasonality and region, and there was a higher bycatch rate in juveniles than in adults. The only abiotic factor associated with bycatch was the lunar cycle, with more animals bycaught during a full moon. These results improve our understanding of which biotic and abiotic factors are associated with bycatch of Baltic harbor porpoises, which can be used to strengthen conservation endeavors such as managing fishing efforts. |
format |
Article in Journal/Newspaper |
author |
Brennecke, Dennis Wahlberg, Magnus Gilles, Anita Siebert, Ursula |
author_facet |
Brennecke, Dennis Wahlberg, Magnus Gilles, Anita Siebert, Ursula |
author_sort |
Brennecke, Dennis |
title |
Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea |
title_short |
Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea |
title_full |
Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea |
title_fullStr |
Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea |
title_full_unstemmed |
Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea |
title_sort |
age and lunar cycle predict harbor porpoise bycatch in the south-western baltic sea |
publishDate |
2021 |
url |
https://portal.findresearcher.sdu.dk/da/publications/6ba566fd-1198-4e8b-9aeb-0bd518f2c7b3 https://doi.org/10.7717/peerj.12284 https://findresearcher.sdu.dk/ws/files/193965244/peerj_12284.pdf |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_source |
Brennecke , D , Wahlberg , M , Gilles , A & Siebert , U 2021 , ' Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea ' , PeerJ , vol. 9 , e12284 . https://doi.org/10.7717/peerj.12284 |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/6ba566fd-1198-4e8b-9aeb-0bd518f2c7b3 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.7717/peerj.12284 |
container_title |
PeerJ |
container_volume |
9 |
container_start_page |
e12284 |
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1799487764247347200 |