Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery
Bycatch of cetaceans in gillnet fisheries is a global problem that can be a major cause of mortality for some species like the harbour porpoise (Phocoena phocoena). To avoid cetacean bycatch, one can enhance the reflectivity of the netting material to make the net barrier more audible in the marine...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier BV
2024
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Online Access: | https://doi.org/10.1016/j.fishres.2024.107032 https://www.openagrar.de/receive/openagrar_mods_00096631 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00059466/dn068327.pdf |
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ftopenagrar:oai:www.openagrar.de:openagrar_mods_00096631 2024-06-23T07:51:06+00:00 Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery Kindt-Larsen, Lotte Noack, Thomas Brooks, Mollie Elizabeth Kroner, Anne-Mette Glemarec, Gildas 2024 https://doi.org/10.1016/j.fishres.2024.107032 https://www.openagrar.de/receive/openagrar_mods_00096631 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00059466/dn068327.pdf eng eng Elsevier BV Elsevier Fisheries research : an international journal on fisheries science, fishing technology and fisheries management -- FISH RES (AMST) -- 0165-7836 -- 1497860-x -- 406532-3 -- http://www.bibliothek.uni-regensburg.de/ezeit/?1497860 -- http://www.sciencedirect.com/science/journal/01657836 https://doi.org/10.1016/j.fishres.2024.107032 https://www.openagrar.de/receive/openagrar_mods_00096631 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00059466/dn068327.pdf all rights reserved only signed in user info:eu-repo/semantics/restrictedAccess article Text ddc:630 acrylic glass -- plastic spheres -- bycatch -- gillnet -- mitigation -- PearlNet article Text doc-type:article 2024 ftopenagrar https://doi.org/10.1016/j.fishres.2024.107032 2024-06-04T14:09:36Z Bycatch of cetaceans in gillnet fisheries is a global problem that can be a major cause of mortality for some species like the harbour porpoise (Phocoena phocoena). To avoid cetacean bycatch, one can enhance the reflectivity of the netting material to make the net barrier more audible in the marine environment. Plastic spheres made of acrylic glass are highly reflective to sound underwater and can be designed species-specifically to be particularly reflective in the frequencies used for echolocating by the species of concern. “PearlNets” are gillnets incorporating such plastic spheres on the twines and have the potential to reduce bycatch rates by making cetaceans aware of the presence of gillnets in their surroundings. However, PearlNets should also be at least as effective as traditional nets at catching target fish species if fishers are to accept using this new mitigation tool. In this study, we compared the catch rates of target species and the bycatch rates of non-target species between control and PearlNets in a set net fishery for Atlantic cod (Gadus morhua) off the Western Baltic Sea. The analysis of the data collected during this trial did not demonstrate a significant difference in catch rates between pearl and control nets (p-values >0.05). In other words, assuming that PearlNets effectively reduce cetacean bycatch, we show that they also maintain catch rates, making this mitigation tool likely acceptable for fishers. Article in Journal/Newspaper atlantic cod Gadus morhua Harbour porpoise Phocoena phocoena OpenAgrar (OA) Fisheries Research 276 107032 |
institution |
Open Polar |
collection |
OpenAgrar (OA) |
op_collection_id |
ftopenagrar |
language |
English |
topic |
article Text ddc:630 acrylic glass -- plastic spheres -- bycatch -- gillnet -- mitigation -- PearlNet |
spellingShingle |
article Text ddc:630 acrylic glass -- plastic spheres -- bycatch -- gillnet -- mitigation -- PearlNet Kindt-Larsen, Lotte Noack, Thomas Brooks, Mollie Elizabeth Kroner, Anne-Mette Glemarec, Gildas Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery |
topic_facet |
article Text ddc:630 acrylic glass -- plastic spheres -- bycatch -- gillnet -- mitigation -- PearlNet |
description |
Bycatch of cetaceans in gillnet fisheries is a global problem that can be a major cause of mortality for some species like the harbour porpoise (Phocoena phocoena). To avoid cetacean bycatch, one can enhance the reflectivity of the netting material to make the net barrier more audible in the marine environment. Plastic spheres made of acrylic glass are highly reflective to sound underwater and can be designed species-specifically to be particularly reflective in the frequencies used for echolocating by the species of concern. “PearlNets” are gillnets incorporating such plastic spheres on the twines and have the potential to reduce bycatch rates by making cetaceans aware of the presence of gillnets in their surroundings. However, PearlNets should also be at least as effective as traditional nets at catching target fish species if fishers are to accept using this new mitigation tool. In this study, we compared the catch rates of target species and the bycatch rates of non-target species between control and PearlNets in a set net fishery for Atlantic cod (Gadus morhua) off the Western Baltic Sea. The analysis of the data collected during this trial did not demonstrate a significant difference in catch rates between pearl and control nets (p-values >0.05). In other words, assuming that PearlNets effectively reduce cetacean bycatch, we show that they also maintain catch rates, making this mitigation tool likely acceptable for fishers. |
format |
Article in Journal/Newspaper |
author |
Kindt-Larsen, Lotte Noack, Thomas Brooks, Mollie Elizabeth Kroner, Anne-Mette Glemarec, Gildas |
author_facet |
Kindt-Larsen, Lotte Noack, Thomas Brooks, Mollie Elizabeth Kroner, Anne-Mette Glemarec, Gildas |
author_sort |
Kindt-Larsen, Lotte |
title |
Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery |
title_short |
Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery |
title_full |
Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery |
title_fullStr |
Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery |
title_full_unstemmed |
Pearls are not just for girls: Plastic spheres do not interfere with target catches in a set net fishery |
title_sort |
pearls are not just for girls: plastic spheres do not interfere with target catches in a set net fishery |
publisher |
Elsevier BV |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.fishres.2024.107032 https://www.openagrar.de/receive/openagrar_mods_00096631 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00059466/dn068327.pdf |
genre |
atlantic cod Gadus morhua Harbour porpoise Phocoena phocoena |
genre_facet |
atlantic cod Gadus morhua Harbour porpoise Phocoena phocoena |
op_relation |
Fisheries research : an international journal on fisheries science, fishing technology and fisheries management -- FISH RES (AMST) -- 0165-7836 -- 1497860-x -- 406532-3 -- http://www.bibliothek.uni-regensburg.de/ezeit/?1497860 -- http://www.sciencedirect.com/science/journal/01657836 https://doi.org/10.1016/j.fishres.2024.107032 https://www.openagrar.de/receive/openagrar_mods_00096631 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00059466/dn068327.pdf |
op_rights |
all rights reserved only signed in user info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.fishres.2024.107032 |
container_title |
Fisheries Research |
container_volume |
276 |
container_start_page |
107032 |
_version_ |
1802642098975932416 |