Trawl Selectivity in the Barents Sea Demersal Fishery
This chapter provides a general overview of the Barents Sea demersal trawl fishery. First, it reviews historical catch levels and current biomass status of four commercially important demersal species (cod, haddock, Greenland halibut, and redfish) and includes an overview of their management plan th...
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ftintech:oai:intechopen.com:50583 2023-05-15T15:38:33+02:00 Trawl Selectivity in the Barents Sea Demersal Fishery Grimaldo, Eduardo Sistiaga, Manu Herrmann, Bent Larsen, Roger B. 2016-09-28 https://mts.intechopen.com/articles/show/title/trawl-selectivity-in-the-barents-sea-demersal-fishery https://doi.org/10.5772/63019 en eng IntechOpen ISBN:978-953-51-2686-7 https://mts.intechopen.com/articles/show/title/trawl-selectivity-in-the-barents-sea-demersal-fishery doi:10.5772/63019 https://creativecommons.org/licenses/by/3.0/ CC-BY https://www.intechopen.com/books/5210 Fisheries and Aquaculture in the Modern World Chapter, Part Of Book 2016 ftintech https://doi.org/10.5772/63019 2021-11-13T18:58:23Z This chapter provides a general overview of the Barents Sea demersal trawl fishery. First, it reviews historical catch levels and current biomass status of four commercially important demersal species (cod, haddock, Greenland halibut, and redfish) and includes an overview of their management plan that has been carried out by the Joint Norwegian–Russian commission. Then, it presents the evolution of the technical regulations for improving size selectivity in this fishery and describes current challenges in gear selectivity. Later, this chapter describes the concept of size selectivity, introduces the selective parameters that define a selection curve, and progressively introduces different parametric models that describe the selection process. The most common experimental methods and gear used to collect selectivity data are described, and their advantages and disadvantages are discussed. Finally, this chapter describes an alternative, or a complementary method, to the conventional estimation of trawl selectivity—the FISHSELECT method. This method is based on morphology measurements and fish penetration models to estimate the selective properties of different mesh shapes and sizes at different mesh openings, which are later used to provide simulation-based prediction of size selectivity. FISHSELECT has already been applied to four important species of the Barents Sea Demersal Fishery, and the results have in all cases showed to be coherent with the results obtained from sea trial results. Other/Unknown Material Barents Sea Greenland IntechOpen (E-Books) Barents Sea Greenland |
institution |
Open Polar |
collection |
IntechOpen (E-Books) |
op_collection_id |
ftintech |
language |
English |
topic |
Fisheries and Aquaculture in the Modern World |
spellingShingle |
Fisheries and Aquaculture in the Modern World Grimaldo, Eduardo Sistiaga, Manu Herrmann, Bent Larsen, Roger B. Trawl Selectivity in the Barents Sea Demersal Fishery |
topic_facet |
Fisheries and Aquaculture in the Modern World |
description |
This chapter provides a general overview of the Barents Sea demersal trawl fishery. First, it reviews historical catch levels and current biomass status of four commercially important demersal species (cod, haddock, Greenland halibut, and redfish) and includes an overview of their management plan that has been carried out by the Joint Norwegian–Russian commission. Then, it presents the evolution of the technical regulations for improving size selectivity in this fishery and describes current challenges in gear selectivity. Later, this chapter describes the concept of size selectivity, introduces the selective parameters that define a selection curve, and progressively introduces different parametric models that describe the selection process. The most common experimental methods and gear used to collect selectivity data are described, and their advantages and disadvantages are discussed. Finally, this chapter describes an alternative, or a complementary method, to the conventional estimation of trawl selectivity—the FISHSELECT method. This method is based on morphology measurements and fish penetration models to estimate the selective properties of different mesh shapes and sizes at different mesh openings, which are later used to provide simulation-based prediction of size selectivity. FISHSELECT has already been applied to four important species of the Barents Sea Demersal Fishery, and the results have in all cases showed to be coherent with the results obtained from sea trial results. |
format |
Other/Unknown Material |
author |
Grimaldo, Eduardo Sistiaga, Manu Herrmann, Bent Larsen, Roger B. |
author_facet |
Grimaldo, Eduardo Sistiaga, Manu Herrmann, Bent Larsen, Roger B. |
author_sort |
Grimaldo, Eduardo |
title |
Trawl Selectivity in the Barents Sea Demersal Fishery |
title_short |
Trawl Selectivity in the Barents Sea Demersal Fishery |
title_full |
Trawl Selectivity in the Barents Sea Demersal Fishery |
title_fullStr |
Trawl Selectivity in the Barents Sea Demersal Fishery |
title_full_unstemmed |
Trawl Selectivity in the Barents Sea Demersal Fishery |
title_sort |
trawl selectivity in the barents sea demersal fishery |
publisher |
IntechOpen |
publishDate |
2016 |
url |
https://mts.intechopen.com/articles/show/title/trawl-selectivity-in-the-barents-sea-demersal-fishery https://doi.org/10.5772/63019 |
geographic |
Barents Sea Greenland |
geographic_facet |
Barents Sea Greenland |
genre |
Barents Sea Greenland |
genre_facet |
Barents Sea Greenland |
op_source |
https://www.intechopen.com/books/5210 |
op_relation |
ISBN:978-953-51-2686-7 https://mts.intechopen.com/articles/show/title/trawl-selectivity-in-the-barents-sea-demersal-fishery doi:10.5772/63019 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5772/63019 |
_version_ |
1766369584226500608 |