Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries
Abstract Fishing trials were carried out to compare the relative fishing efficiency of gillnets made of a new biodegradable resin (polybutylene succinate co-adipate-co-terephthalate, PBSAT) with conventional (nylon) nets. The fishing trials covered two consecutive fishing seasons (2016 and 2017) for...
Published in: | ICES Journal of Marine Science |
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Oxford University Press (OUP)
2018
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsy108 http://academic.oup.com/icesjms/article-pdf/75/6/2245/31237500/fsy108.pdf |
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croxfordunivpr:10.1093/icesjms/fsy108 2024-09-15T18:07:16+00:00 Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries Grimaldo, Eduardo Herrmann, Bent Vollstad, Jørgen Su, Biao Moe Føre, Heidi Larsen, Roger B Tatone, Ivan Pol, Michael Research Council of Norway Norwegian Industrial Seafood Research Fund Norwegian Directorate of Fisheries 2018 http://dx.doi.org/10.1093/icesjms/fsy108 http://academic.oup.com/icesjms/article-pdf/75/6/2245/31237500/fsy108.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 75, issue 6, page 2245-2256 ISSN 1054-3139 1095-9289 journal-article 2018 croxfordunivpr https://doi.org/10.1093/icesjms/fsy108 2024-08-05T04:30:41Z Abstract Fishing trials were carried out to compare the relative fishing efficiency of gillnets made of a new biodegradable resin (polybutylene succinate co-adipate-co-terephthalate, PBSAT) with conventional (nylon) nets. The fishing trials covered two consecutive fishing seasons (2016 and 2017) for cod (Gadus morhua) and saithe (Pollachius virens) in northern Norway. Results generally showed better catch rates for the nylon gillnets. The biodegradable PBSAT gillnets caught 50.0% and 26.6% fewer cod, and 41.0% and 22.5% fewer saithe than the nylon gillnets in 2016 and 2017, respectively. Even though the relative catch efficiency of the biodegradable gillnets was slightly better in 2017 than in 2016, the difference with respect to the catch efficiency of nylon gillnets may be too large for biodegradable gillnets to be accepted by fishermen if they were available commercially. Tensile strength measurements of the nylon and biodegradable PBSAT gillnets carried out before and after the fishing trials showed that the both types of gillnets had significant reductions in tensile strength and elongation at break, especially in 2017. Although less catch efficient than nylon gillnets, biodegradable PBSAT gillnets show great potential for reducing ghost fishing and plastic pollution at sea, which are major problems in these fisheries. Article in Journal/Newspaper Gadus morhua Northern Norway Oxford University Press ICES Journal of Marine Science 75 6 2245 2256 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Fishing trials were carried out to compare the relative fishing efficiency of gillnets made of a new biodegradable resin (polybutylene succinate co-adipate-co-terephthalate, PBSAT) with conventional (nylon) nets. The fishing trials covered two consecutive fishing seasons (2016 and 2017) for cod (Gadus morhua) and saithe (Pollachius virens) in northern Norway. Results generally showed better catch rates for the nylon gillnets. The biodegradable PBSAT gillnets caught 50.0% and 26.6% fewer cod, and 41.0% and 22.5% fewer saithe than the nylon gillnets in 2016 and 2017, respectively. Even though the relative catch efficiency of the biodegradable gillnets was slightly better in 2017 than in 2016, the difference with respect to the catch efficiency of nylon gillnets may be too large for biodegradable gillnets to be accepted by fishermen if they were available commercially. Tensile strength measurements of the nylon and biodegradable PBSAT gillnets carried out before and after the fishing trials showed that the both types of gillnets had significant reductions in tensile strength and elongation at break, especially in 2017. Although less catch efficient than nylon gillnets, biodegradable PBSAT gillnets show great potential for reducing ghost fishing and plastic pollution at sea, which are major problems in these fisheries. |
author2 |
Pol, Michael Research Council of Norway Norwegian Industrial Seafood Research Fund Norwegian Directorate of Fisheries |
format |
Article in Journal/Newspaper |
author |
Grimaldo, Eduardo Herrmann, Bent Vollstad, Jørgen Su, Biao Moe Føre, Heidi Larsen, Roger B Tatone, Ivan |
spellingShingle |
Grimaldo, Eduardo Herrmann, Bent Vollstad, Jørgen Su, Biao Moe Føre, Heidi Larsen, Roger B Tatone, Ivan Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries |
author_facet |
Grimaldo, Eduardo Herrmann, Bent Vollstad, Jørgen Su, Biao Moe Føre, Heidi Larsen, Roger B Tatone, Ivan |
author_sort |
Grimaldo, Eduardo |
title |
Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries |
title_short |
Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries |
title_full |
Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries |
title_fullStr |
Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries |
title_full_unstemmed |
Fishing efficiency of biodegradable PBSAT gillnets and conventional nylon gillnets used in Norwegian cod (Gadus morhua) and saithe (Pollachius virens) fisheries |
title_sort |
fishing efficiency of biodegradable pbsat gillnets and conventional nylon gillnets used in norwegian cod (gadus morhua) and saithe (pollachius virens) fisheries |
publisher |
Oxford University Press (OUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1093/icesjms/fsy108 http://academic.oup.com/icesjms/article-pdf/75/6/2245/31237500/fsy108.pdf |
genre |
Gadus morhua Northern Norway |
genre_facet |
Gadus morhua Northern Norway |
op_source |
ICES Journal of Marine Science volume 75, issue 6, page 2245-2256 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsy108 |
container_title |
ICES Journal of Marine Science |
container_volume |
75 |
container_issue |
6 |
container_start_page |
2245 |
op_container_end_page |
2256 |
_version_ |
1810444643395960832 |