Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery
One of the most effective ways to alter catch and length compositions in trawls is to adjust the meshsize or add selective devices such as sorting grids and selective netting panels. These changes are oftenintroduced into the fishery in a top down manner whereby fishermen are forced to comply with s...
Published in: | Fisheries Research |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2016
|
Subjects: | |
Online Access: | https://orbit.dtu.dk/en/publications/834cadbe-294b-4ef4-ad23-cd8ec72d2d81 https://doi.org/10.1016/j.fishres.2015.11.017 https://backend.orbit.dtu.dk/ws/files/118482322/Publishers_version.pdf |
id |
ftdtupubl:oai:pure.atira.dk:publications/834cadbe-294b-4ef4-ad23-cd8ec72d2d81 |
---|---|
record_format |
openpolar |
spelling |
ftdtupubl:oai:pure.atira.dk:publications/834cadbe-294b-4ef4-ad23-cd8ec72d2d81 2023-06-11T04:11:47+02:00 Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery Feekings, Jordan P. Berg, Casper Willestofte Krag, Ludvig Ahm Eigaard, Ole Ritzau 2016 application/pdf https://orbit.dtu.dk/en/publications/834cadbe-294b-4ef4-ad23-cd8ec72d2d81 https://doi.org/10.1016/j.fishres.2015.11.017 https://backend.orbit.dtu.dk/ws/files/118482322/Publishers_version.pdf eng eng info:eu-repo/semantics/openAccess Feekings , J P , Berg , C W , Krag , L A & Eigaard , O R 2016 , ' Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery ' , Fisheries Research , vol. 175 , pp. 51-56 . https://doi.org/10.1016/j.fishres.2015.11.017 article 2016 ftdtupubl https://doi.org/10.1016/j.fishres.2015.11.017 2023-05-31T22:59:02Z One of the most effective ways to alter catch and length compositions in trawls is to adjust the meshsize or add selective devices such as sorting grids and selective netting panels. These changes are oftenintroduced into the fishery in a top down manner whereby fishermen are forced to comply with spe-cific legislation. However, fishermen have also introduced gear modifications that have contributed toimproving species selectivity in trawls. One of the simplest and most effective modifications that camefrom industry was the development and introduction of twin and multi-rig trawls. Here we analyse catchrates of four target species, Norway lobster (Nephrops norvegicus), cod (Gadus morhua), plaice (Pleuronectesplatessa) and haddock (Melanogrammus aeglefinus), to try and understand how the use of multi-rig trawlshave altered catch rates within the Danish demersal trawl fishery over the last 16 years (1997–2012).Results showed that catch rates of Nephrops in multi-rig trawls were significantly higher (1.89–2.03)than those in single trawls. For cod, haddock and plaice there was no significant effect of gear type. Theresults are discussed in relation to the Common Fisheries Policy reform and the increasing importanceof industry introduced gear modifications Article in Journal/Newspaper Gadus morhua Technical University of Denmark: DTU Orbit Norway Fisheries Research 175 51 56 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
One of the most effective ways to alter catch and length compositions in trawls is to adjust the meshsize or add selective devices such as sorting grids and selective netting panels. These changes are oftenintroduced into the fishery in a top down manner whereby fishermen are forced to comply with spe-cific legislation. However, fishermen have also introduced gear modifications that have contributed toimproving species selectivity in trawls. One of the simplest and most effective modifications that camefrom industry was the development and introduction of twin and multi-rig trawls. Here we analyse catchrates of four target species, Norway lobster (Nephrops norvegicus), cod (Gadus morhua), plaice (Pleuronectesplatessa) and haddock (Melanogrammus aeglefinus), to try and understand how the use of multi-rig trawlshave altered catch rates within the Danish demersal trawl fishery over the last 16 years (1997–2012).Results showed that catch rates of Nephrops in multi-rig trawls were significantly higher (1.89–2.03)than those in single trawls. For cod, haddock and plaice there was no significant effect of gear type. Theresults are discussed in relation to the Common Fisheries Policy reform and the increasing importanceof industry introduced gear modifications |
format |
Article in Journal/Newspaper |
author |
Feekings, Jordan P. Berg, Casper Willestofte Krag, Ludvig Ahm Eigaard, Ole Ritzau |
spellingShingle |
Feekings, Jordan P. Berg, Casper Willestofte Krag, Ludvig Ahm Eigaard, Ole Ritzau Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery |
author_facet |
Feekings, Jordan P. Berg, Casper Willestofte Krag, Ludvig Ahm Eigaard, Ole Ritzau |
author_sort |
Feekings, Jordan P. |
title |
Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery |
title_short |
Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery |
title_full |
Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery |
title_fullStr |
Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery |
title_full_unstemmed |
Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery |
title_sort |
influence of twin and multi-rig trawl systems on cpue in the danish norway lobster (nephrops norvegicus) fishery |
publishDate |
2016 |
url |
https://orbit.dtu.dk/en/publications/834cadbe-294b-4ef4-ad23-cd8ec72d2d81 https://doi.org/10.1016/j.fishres.2015.11.017 https://backend.orbit.dtu.dk/ws/files/118482322/Publishers_version.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Feekings , J P , Berg , C W , Krag , L A & Eigaard , O R 2016 , ' Influence of twin and multi-rig trawl systems on CPUE in the Danish Norway lobster (Nephrops norvegicus) fishery ' , Fisheries Research , vol. 175 , pp. 51-56 . https://doi.org/10.1016/j.fishres.2015.11.017 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.fishres.2015.11.017 |
container_title |
Fisheries Research |
container_volume |
175 |
container_start_page |
51 |
op_container_end_page |
56 |
_version_ |
1768387107235037184 |