The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery
The proportion of Atlantic cod (Gadus morhua) discarded in the Danish Baltic Sea cod trawl fishery has been as high as 40%. This, combined with a stock that has declined dramatically over the past 30 years, has led to numerous technical regulations being introduced to reduce the capture of juveniles...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://orbit.dtu.dk/en/publications/70c95590-72ff-496e-b454-39a43edcc4c8 https://doi.org/10.1139/cjfas-2012-0273 http://www.nrcresearchpress.com/toc/cjfas/70/4 |
id |
ftdtupubl:oai:pure.atira.dk:publications/70c95590-72ff-496e-b454-39a43edcc4c8 |
---|---|
record_format |
openpolar |
spelling |
ftdtupubl:oai:pure.atira.dk:publications/70c95590-72ff-496e-b454-39a43edcc4c8 2023-05-15T15:27:11+02:00 The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery Feekings, Jordan Lewy, Peter Madsen, Niels 2013 https://orbit.dtu.dk/en/publications/70c95590-72ff-496e-b454-39a43edcc4c8 https://doi.org/10.1139/cjfas-2012-0273 http://www.nrcresearchpress.com/toc/cjfas/70/4 eng eng info:eu-repo/semantics/closedAccess Feekings , J , Lewy , P & Madsen , N 2013 , ' The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 70 , no. 4 , pp. 534-542 . https://doi.org/10.1139/cjfas-2012-0273 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water article 2013 ftdtupubl https://doi.org/10.1139/cjfas-2012-0273 2023-01-04T23:59:00Z The proportion of Atlantic cod (Gadus morhua) discarded in the Danish Baltic Sea cod trawl fishery has been as high as 40%. This, combined with a stock that has declined dramatically over the past 30 years, has led to numerous technical regulations being introduced to reduce the capture of juveniles and thus discards. One method that has been widely adopted in the Baltic Sea has been to improve gear selectivity, subsequently allowing young individuals to escape capture. To understand the effects that changes to gear selectivity and minimum landing size have had on discard rates, as well as the effects of a range of additional explanatory factors, generalized additive mixed models were used. Gear regulation changes enforced in the Danish demersal trawl fishery in the Baltic Sea and other factors, such as minimum landings size, juvenile abundance, catch mass, price, and their spatial and temporal distribution, were found to significantly affect discard rates. The newest and currently legislated gears were identified as having the lowest discard rates. The increase in minimum landing size from 35 to 38 cm has increased discard rates Article in Journal/Newspaper atlantic cod Gadus morhua Technical University of Denmark: DTU Orbit Canadian Journal of Fisheries and Aquatic Sciences 70 4 534 542 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water Feekings, Jordan Lewy, Peter Madsen, Niels The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water |
description |
The proportion of Atlantic cod (Gadus morhua) discarded in the Danish Baltic Sea cod trawl fishery has been as high as 40%. This, combined with a stock that has declined dramatically over the past 30 years, has led to numerous technical regulations being introduced to reduce the capture of juveniles and thus discards. One method that has been widely adopted in the Baltic Sea has been to improve gear selectivity, subsequently allowing young individuals to escape capture. To understand the effects that changes to gear selectivity and minimum landing size have had on discard rates, as well as the effects of a range of additional explanatory factors, generalized additive mixed models were used. Gear regulation changes enforced in the Danish demersal trawl fishery in the Baltic Sea and other factors, such as minimum landings size, juvenile abundance, catch mass, price, and their spatial and temporal distribution, were found to significantly affect discard rates. The newest and currently legislated gears were identified as having the lowest discard rates. The increase in minimum landing size from 35 to 38 cm has increased discard rates |
format |
Article in Journal/Newspaper |
author |
Feekings, Jordan Lewy, Peter Madsen, Niels |
author_facet |
Feekings, Jordan Lewy, Peter Madsen, Niels |
author_sort |
Feekings, Jordan |
title |
The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery |
title_short |
The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery |
title_full |
The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery |
title_fullStr |
The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery |
title_full_unstemmed |
The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery |
title_sort |
effect of regulation changes and influential factors on atlantic cod discards in the baltic sea demersal trawl fishery |
publishDate |
2013 |
url |
https://orbit.dtu.dk/en/publications/70c95590-72ff-496e-b454-39a43edcc4c8 https://doi.org/10.1139/cjfas-2012-0273 http://www.nrcresearchpress.com/toc/cjfas/70/4 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Feekings , J , Lewy , P & Madsen , N 2013 , ' The effect of regulation changes and influential factors on Atlantic cod discards in the Baltic Sea demersal trawl fishery ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 70 , no. 4 , pp. 534-542 . https://doi.org/10.1139/cjfas-2012-0273 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1139/cjfas-2012-0273 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
70 |
container_issue |
4 |
container_start_page |
534 |
op_container_end_page |
542 |
_version_ |
1766357636702273536 |