Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery
Abstract Herrmann, B., Mieske, B., Stepputtis, D., Krag, L. A., Madsen, N., and Noack, T. 2013. Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery. – ICES Journal of Marine Science, 70: 850–863....
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Language: | English |
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Oxford University Press (OUP)
2013
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Online Access: | http://dx.doi.org/10.1093/icesjms/fst032 http://academic.oup.com/icesjms/article-pdf/70/4/850/29146549/fst032.pdf |
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croxfordunivpr:10.1093/icesjms/fst032 2024-05-19T07:40:36+00:00 Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery Herrmann, Bent Mieske, Bernd Stepputtis, Daniel Krag, Ludvig Ahm Madsen, Niels Noack, Thomas 2013 http://dx.doi.org/10.1093/icesjms/fst032 http://academic.oup.com/icesjms/article-pdf/70/4/850/29146549/fst032.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 70, issue 4, page 850-863 ISSN 1095-9289 1054-3139 journal-article 2013 croxfordunivpr https://doi.org/10.1093/icesjms/fst032 2024-04-25T07:59:23Z Abstract Herrmann, B., Mieske, B., Stepputtis, D., Krag, L. A., Madsen, N., and Noack, T. 2013. Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery. – ICES Journal of Marine Science, 70: 850–863. The survival likelihood of fish escaping through trawl codends may depend on when they escape. It is therefore relevant to investigate when during the fishing process fish actually attempt to escape and do escape from trawl codends. This subject is addressed by modelling data collected during a specially designed experiment. Results demonstrate that the escape process during towing cannot be described sufficiently by a traditional logistic model or something similar. Instead, a model is required that explicitly considers that not all fish necessarily contact the codend netting to attempt escape during the towing phase. A model that accounts for such behaviour is applied and it is demonstrated that this model can adequately describe the size selection process during towing. The overall escape process, which consists of the attempt probability, partial escape during towing, and partial escape during the haul-back phase, is also modelled. This proposed model sufficiently described the observed escape pattern for cod (Gadus morhua), plaice (Pleuronectes platessa), and flounder (Platichtys flesus). For all three species, a significant percentage of the individuals entering the codends during fishing first attempt to escape during the haul-back operation. Article in Journal/Newspaper Gadus morhua Oxford University Press ICES Journal of Marine Science 70 4 850 863 |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Herrmann, B., Mieske, B., Stepputtis, D., Krag, L. A., Madsen, N., and Noack, T. 2013. Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery. – ICES Journal of Marine Science, 70: 850–863. The survival likelihood of fish escaping through trawl codends may depend on when they escape. It is therefore relevant to investigate when during the fishing process fish actually attempt to escape and do escape from trawl codends. This subject is addressed by modelling data collected during a specially designed experiment. Results demonstrate that the escape process during towing cannot be described sufficiently by a traditional logistic model or something similar. Instead, a model is required that explicitly considers that not all fish necessarily contact the codend netting to attempt escape during the towing phase. A model that accounts for such behaviour is applied and it is demonstrated that this model can adequately describe the size selection process during towing. The overall escape process, which consists of the attempt probability, partial escape during towing, and partial escape during the haul-back phase, is also modelled. This proposed model sufficiently described the observed escape pattern for cod (Gadus morhua), plaice (Pleuronectes platessa), and flounder (Platichtys flesus). For all three species, a significant percentage of the individuals entering the codends during fishing first attempt to escape during the haul-back operation. |
format |
Article in Journal/Newspaper |
author |
Herrmann, Bent Mieske, Bernd Stepputtis, Daniel Krag, Ludvig Ahm Madsen, Niels Noack, Thomas |
spellingShingle |
Herrmann, Bent Mieske, Bernd Stepputtis, Daniel Krag, Ludvig Ahm Madsen, Niels Noack, Thomas Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery |
author_facet |
Herrmann, Bent Mieske, Bernd Stepputtis, Daniel Krag, Ludvig Ahm Madsen, Niels Noack, Thomas |
author_sort |
Herrmann, Bent |
title |
Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery |
title_short |
Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery |
title_full |
Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery |
title_fullStr |
Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery |
title_full_unstemmed |
Modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal Baltic Sea cod fishery |
title_sort |
modelling towing and haul-back escape patterns during the fishing process: a case study for cod, plaice, and flounder in the demersal baltic sea cod fishery |
publisher |
Oxford University Press (OUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1093/icesjms/fst032 http://academic.oup.com/icesjms/article-pdf/70/4/850/29146549/fst032.pdf |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
ICES Journal of Marine Science volume 70, issue 4, page 850-863 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fst032 |
container_title |
ICES Journal of Marine Science |
container_volume |
70 |
container_issue |
4 |
container_start_page |
850 |
op_container_end_page |
863 |
_version_ |
1799480195088908288 |