Ludvig Ahm Krag

Ludvig Ahm Krag

Senior Researcher

DTU AQUA
National Institute of Aquatic Resources

Section for Ecosystem based Marine Management

Technical University of Denmark

Willemoesvej 2

9850 Hirtshals

Request a vCard via e-mail.

Publications
Projects
Activities
Courses
CV
DTU news
Loading

Publications rss feed

2019
 

An evaluation of European initiatives established to encourage industry-led development of selective fishing gears

Feekings, Jordan P. ; O’Neill, Finbarr G. ; Krag, Ludvig Ahm ; Ulrich, Clara ; Veiga Malta, Tiago
in: Fisheries Management and Ecology, vol: 26, issue: 6, pages: 650-660

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1111/fme.12379

 

Can active behaviour stimulators improve fish separation from Nephrops (Nephrops norvegicus) in a horizontally divided trawl codend?

Melli, Valentina ; Krag, Ludvig Ahm ; Herrmann, Bent ; Karlsen, Junita Diana
in: Fisheries Research, vol: 211, pages: 282-290

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1016/j.fishres.2018.11.027

  PDF

Gear performance and catch process of a commercial Danish anchor seine

Noack, Thomas ; Stepputtis, Daniel ; Madsen, Niels ; Wieland, Kai ; Haase, Stefanie ; Krag, Ludvig Ahm
in: Fisheries Research, vol: 211, pages: 204-211

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1016/j.fishres.2018.11.012

 

Industry-led fishing gear development: Can it facilitate the process?

Veiga-Malta, Tiago ; Feekings, Jordan P. ; Herrmann, Bent ; Krag, Ludvig Ahm
in: Ocean & Coastal Management, vol: 177, pages: 148-155

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1016/j.ocecoaman.2019.05.009

  PDF

Is two better than one? Predicting the performance of a combination of bycatch reduction devices in a Nephrops-directed fishery

Melli, Valentina ; Herrmann, Bent ; Karlsen, Junita Diana ; Feekings, Jordan P. ; Krag, Ludvig Ahm
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behavior (WGFTFB)

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2019

 

Predicting optimal combinations of by-catch reduction devices in trawl gears: a meta-analytical approach

Melli, Valentina ; Herrmann, Bent ; Karlsen, Junita Diana ; Feekings, Jordan P. ; Krag, Ludvig Ahm
in: Fish and Fisheries

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    Year: 2019     |    DOI: https://doi.org/10.1111/faf.12428

  PDF

Using vertical distribution to separate fish from crustaceans in a mixed species trawl fishery

Karlsen, Junita Diana ; Krag, Ludvig Ahm ; Herrmann, Bent ; Lund, Henrik Skaarup
in: Canadian Journal of Fisheries and Aquatic Sciences, vol: 76, issue: 10, pages: 1781-1794

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1139/cjfas-2018-0313

  PDF

Working Group on Fishing Technology and Fish Behaviour (WGFTFB)

Adam, Serena Binti ; Amornpiyakrit, Taweekiet ; Bayse, Shannon ; bin Asmat, MohdFadzliee ; Bjordal, Åsmund ; Brooks, Mollie Elizabeth ; Cao, Daomei ; Catchpole, Thomas ; Chanrachkij, Isara ; Chen, Mingrui ; Chen, Xinjun ; Chen, Zhihai ; Cheng, Zhaohai ; Chu, Wenhua ; Dai, Mingyun ; Dai, Ying ; Deng, Qingyan ; Ding, Ruizhi ; Duarte, Dérien Lucie Vernetti ; Eayrs, Stephen ; Fan, Wei ; Fatima, Ema ; Fields, Lauren ; Friederike, Kratzer Isabella Maria ; Gao, Yanjie ; Gilman, Eric ; Haney, Georg ; Hua, Rong ; Huang, Hongliang ; Huang, Liuyi ; Ingólfsson, Ólafur Arnar ; Jiang, Keji ; Jiang, Weiping ; Jørgensen, Terje ; Karlsen, Junita Diana ; Breddermann, Karsten ; Kim, Hyun Young ; Kindt-Larsen, Lotte ; Krag, Ludvig Ahm ; Li, Yiting ; Li, Yuwei ; Li, Zengguang ; Lichtenstein, Uwe ; Liu, Lili ; Liu, Ying ; Ljungberg, Peter ; Lu, Huajie ; Lu, Kexiang ; Matsushita, Yoshiki ; McHugh, Matthew ; Melli, Valentina ; Molenaar, Pieke ; Narcisse, Ebango Ngando ; Opstal, Mattiasvan ; Park, Subong ; Pol, Michael ; Qi, Yukun ; Qian, Weiguo ; Qiu, Yongsong ; Ramirez, Daniel Aguilar ; Ren, Shiyu ; Ren, Yiping ; Richardson, Kelsey ; Sá, Pedro ; Sala, Antonello ; Santos, Juan ; Schacht, Stephan ; Scott, Carol ; Shen, Huihui ; Shiode, Daisuke ; Soetaert, Maarten ; Song, Weihua ; Stepputtis, Daniel ; Takayama, Go ; Tang, Hao ; Tang, Jianhua ; Tang, Weiyao ; Tang, Yanli ; Tenningen, Maria ; Tong, Jianfeng ; van Anrooij, Raymon ; Vold, Aud ; Wang, Di ; Wang, Jing ; Wang, Jintao ; Wang, Teng ; Wang, Xuefeng ; Wang, Yongjin ; Watson, Daniel ; Werner, Timothy ; Xing, Binbin ; Xu, Shuangquan ; Yan, Lei ; Yang, Fei ; Ye, Xuchang ; Yin, Leiming ; Yochum, Noëlle ; Yu, Congda ; Zang, Yinliang ; Zhang, Heng ; Zhang, Jian ; Zhang, Jingjing ; Zhang, Min ; Zhang, Peng ; Zhang, Shengmao ; Zhang, Xun ; Zhang, Yu ; Zhen, Ji ; Zhong, Chunyi ; Zhong, Xiaming ; Zhou, Cheng ; Zhou, Wang ; Zhou, Yingqi ; Zhou, Yongdong ; Zhu, Guoping ; Zhu, Wenbin ; Zhu, Xiaoli ; Zou, Xiaorong

Type: Report

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.17895/ices.pub.5592

2018
 

Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2018

Krafft, Bjørn A. ; Skaret, Georg ; Krag, Ludvig Ahm ; Pedersen, Ronald

Type: Report

Status: Published     |    Year: 2018

 

Assessing physiological stress to understand collateral mortality in the Antarctic krill (Euphausia superba) trawl fishery

Krag, Ludvig Ahm ; Krafft, B. A. ; Herrmann, B. ; Skov, Peter Vilhelm
Presented at:
ICES FTFB 2018

Type: Conference abstract for conference

Status: Published     |    Year: 2018

 

Changes in operational tactics as a powerful tool to adjust to the landing obligation for bottom-set-nets

Savina, Esther ; Krag, Ludvig Ahm
Presented at:
ICES FTFB 2018

Type: Conference abstract for conference

Status: Published     |    Year: 2018

  PDF

Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig

Krag, Ludvig Ahm ; Krafft, Bjørn A ; Engås, Arill ; Herrmann, Bent
in: PLOS ONE, vol: 13, issue: 8

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1371/journal.pone.0202027

  PDF

Developing and testing a computer vision method to quantify 3D movements of bottom-set gillnets on the seabed

Savina, Esther ; Krag, Ludvig Ahm ; Madsen, Niels
in: ICES Journal of Marine Science, vol: 75, issue: 2, pages: 814-824

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1093/icesjms/fsx194

 

Establishing baseline understanding of Antarctic krill (Euhausia superba) response to LED light exposure

Krafft, B.A. ; Krag, Ludvig Ahm
Presented at:
ICES FTFB 2018

Type: Poster

Status: Published     |    Year: 2018

  PDF

Findings from the ICES workshop on Methods for Stakeholder Involvement in Fishing Gear Development

Feekings, Jordan P. ; Valentinsson, D. ; Malta, Tiago Alexandre Matias da Veiga ; Krag, Ludvig Ahm
Presented at:
ICES Annual Science Conference 2018

Type: Conference abstract for conference

Status: Published     |    Year: 2018

  PDF

FLEXSELECT: counter-herding device to reduce bycatch in crustacean trawl fisheries

Melli, Valentina ; Karlsen, Junita Diana ; Feekings, Jordan P. ; Herrmann, Bent ; Krag, Ludvig Ahm
in: Canadian Journal of Fisheries and Aquatic Sciences, vol: 75, issue: 6, pages: 850-860

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1139/cjfas-2017-0226

  PDF

Investigating fish behavioural responses to LED lights in trawls and potential applications for bycatch reduction in the Nephrops-directed fishery

Melli, Valentina ; Krag, Ludvig Ahm ; Herrmann, Bent ; Karlsen, Junita Diana
in: ICES Journal of Marine Science, vol: 75, issue: 5, pages: 1682-1692

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1093/icesjms/fsy048

 

LED lights to reduce bycatch in trawls: does phototaxis come into play?

Melli, Valentina ; Krag, Ludvig Ahm ; Herrmann, Bent ; Karlsen, Junita Diana
Presented at:
2018 Meeting in ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2018

 

New approaches to bottom trawl codend selectivity studies in the Mediterranean Sea

Tokaç, Adnan ; Herrmann, Bent ; Gökçe, Gökhan ; Krag, Ludvig Ahm
Presented at:
FISHFORUM 2018

Type: Conference abstract for conference

Status: Published     |    Year: 2018

 

Preventing the catch of fish in Nephrops (Nephrops norvegicus) trawl fisheries through counter-herding devices

Melli, Valentina ; Feekings, Jordan P. ; Herrmann, Bent ; Karlsen, Junita Diana ; Krag, Ludvig Ahm
Presented at:
ICES Annual Science Conference 2018

Type: Conference abstract for conference

Status: Published     |    Year: 2018

 

Size selection of Antarctic krill (Euphausia superba) in a commercial codend and trawl body

Herrmann, Bent ; Krag, Ludvig Ahm ; Krafft, Bjørn A.
in: Fisheries Research, vol: 207, pages: 49-54

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1016/j.fishres.2018.05.028

  PDF

Summer distribution and demography of Antarctic krill Euphausia superba Dana, 1852 (Euphausiacea) at the South Orkney Islands, 2011–2015

Krafft, Bjørn A. ; Krag, Ludvig Ahm ; Knutsen, Tor ; Skaret, Georg ; Jensen, Knut H. M. ; Krakstad, Jens O. ; Larsen, Stuart H. ; Melle, Webjørn ; Iversen, Svein A. ; Godø, Olav R.
in: Journal of Crustacean Biology, vol: 38, issue: 6, pages: 682-688

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1093/jcbiol/ruy061

  PDF

The efficiency of sieve-panels for bycatch separation in Nephrops trawls

Santos, Juan ; Herrmann, Bent ; Mieske, Bernd ; Krag, Ludvig Ahm ; Haase, Stefanie ; Stepputtis, Daniel
in: Fisheries Management and Ecology, vol: 25, issue: 6, pages: 464-473

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1111/fme.12323

 

The influence of mesh size and shape on the size selection of European hake (Merluccius merluccius) in demersal trawl codends: An investigation based on fish morphology and simulation of mesh geometry

Tokaç, Adnan ; Herrmann, Bent ; Gokce, Gokhan ; Krag, Ludvig Ahm ; Nezhad, Davud Sadegh
in: Scientia Marina, vol: 82, issue: 3, pages: 147-157

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.3989/scimar.04764.18A

 

The luminous net VISIONET – a guiding swimway to the exit or a stressor?

Karlsen, Junita Diana ; Melli, Valentina ; Krag, Ludvig Ahm
Presented at:
2018 Meeting in ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2018

 

When is enough, enough? From theory to practice

Malta, Tiago Alexandre Matias da Veiga ; Feekings, Jordan P. ; Herrmann, Bent ; Krag, Ludvig Ahm
Presented at:
ICES FTFB 2018

Type: Conference abstract for conference

Status: Published     |    Year: 2018

  PDF

When is enough, enough? Quantifying trade-offs between information quality and sampling effort for fishing gear selectivity data

Veiga-Malta, Tiago ; Feekings, Jordan P. ; Herrmann, Bent ; Krag, Ludvig Ahm
in: P L o S One, vol: 13, issue: 6

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1371/journal.pone.0199655

2017
  PDF

Codend selectivity in a commercial Danish anchor seine

Noack, Thomas ; Frandsen, Rikke ; Krag, Ludvig Ahm ; Mieske, Bernd ; Madsen, Niels
in: Fisheries Research, vol: 186, pages: 283-291

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1016/j.fishres.2016.10.006

 

Danish seine – Ecosystem effects of fishing

Noack, Thomas ; Madsen, Niels ; Wieland, Kai ; Savina, Esther ; Krag, Ludvig Ahm
Presented at:
Dansk Havforskermøde

Type: Conference abstract for conference

Status: Published     |    Year: 2017

  PDF

Effect of fisher's soak tactic on catch pattern in the Danish gillnet plaice fishery

Savina, Esther ; Krag, Ludvig Ahm ; Frandsen, Rikke Petri ; Madsen, Niels
in: Fisheries Research, vol: 196, pages: 56-65

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1016/j.fishres.2017.08.009

  PDF

Estimating escapement of fish and invertebrates in a Danish anchor seine

Noack, Thomas ; Madsen, Niels ; Mieske, Bernd ; Frandsen, Rikke ; Wieland, Kai ; Krag, Ludvig Ahm
in: ICES Journal of Marine Science, vol: 74, issue: 9, pages: 2480-2488

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1093/icesjms/fsx066

  PDF

FAST TRACK: Industry developed gear solutions under the landing obligation

Feekings, Jordan P. ; Krag, Ludvig Ahm ; Malta, Tiago Alexandre Matias da Veiga ; Ulrich, Clara ; Mortensen, Lars O. ; Eliasen, Søren
Presented at:
DanFish International

Type: Poster

Status: Published     |    Year: 2017

 

Fasttrack-projekt testede fangstpose

Feekings, Jordan P. ; Malta, Tiago Veiga ; Frandsen, Rikke P. ; Krag, Ludvig A.
in: Fiskeri Tidende, vol: 24, issue: 46, pages: 14-15

Type: Contribution to newspaper - Newspaper article

Status: Published     |    Year: 2017

  PDF

Fishing profiles of Danish seiners and bottom trawlers in relation to current EU management regulations

Noack, Thomas ; Frandsen, R. P. ; Wieland, Kai ; Krag, Ludvig Ahm ; Berg, F. ; Madsen, N.
in: Fisheries Management and Ecology, vol: 24, issue: 6, pages: 436-445

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1111/fme.12244

 

FLEXSELECT: a flexible counter-herding device to reduce bycatch in trawl fisheries

Melli, Valentina ; Karlsen, Junita Diana ; Feekings, Jordan P. ; Herrmann, Bent ; Krag, Ludvig Ahm
Presented at:
2017 Meeting in ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2017

 

Identifying candidate reflexes for lemon sole (Microstomus kitt)

Karlsen, Junita Diana ; Noack, Thomas ; Uhlmann, Sebastian ; Krag, Ludvig Ahm
Presented at:
ICES Annual Science Conference 2017

Type: Conference abstract for conference

Status: Published     |    Year: 2017

 

Improving escape panel selectivity in Nephrops directed fisheries by actively stimulating fish behaviour

Krag, Ludvig Ahm ; Herrmann, Bent ; Feekings, Jordan P. ; Lund, Henrik Skaarup ; Karlsen, Junita Diana
in: Canadian Journal of Fisheries and Aquatic Sciences, vol: 74, issue: 4, pages: 486-493

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1139/cjfas-2015-0568

 

Industry-led fishing gear selectivity improvements: Ideas and lessons learned

Feekings, Jordan P. ; Krag, Ludvig Ahm ; Malta, Tiago Alexandre Matias da Veiga ; Lund, Henrik
Presented at:
2017 Meeting in ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2017

 

Selectivity in a divided codend used in the multispecies trawl fishery targeting crustaceans

Karlsen, Junita Diana ; Krag, Ludvig Ahm ; Herrmann, Bent ; Lund, Henrik S.
Presented at:
2017 Meeting in ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2017

 

Skræmmeliner giver renere jomfruhummerfangst

Melli, Valentina ; Frandsen, Rikke ; Krag, Ludvig Ahm ; Feekings, Jordan P.
in: Fiskeri Tidende, vol: 24, issue: 47, pages: 9-10

Type: Contribution to newspaper - Newspaper article

Status: Published     |    Year: 2017

 

Utilizing differences in behaviour to improve catch efficiency in the Nephrops directed fisheries

Krag, Ludvig Ahm ; Frandsen, Rikke P. ; Dinesen, Grete E. ; Herrmann, Bent ; Lund, Henrik S. ; Karlsen, Junita Diana
Presented at:
2017 Meeting in ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2017

2016
 

Antarctic krill and ecosystem monitoring survey at South Orkney Islands in 2016

Krafft, B. A. ; Skaret, G. ; Krag, Ludvig Ahm ; Rustand, T. ; Pedersen, R.

Type: Report

Status: Published     |    Year: 2016

 

Assessment of mortality of Antarctic krill (Euphausia superba) escaping from a trawl

Krafft, B. A. ; Krag, Ludvig Ahm
Presented at:
6th Zooplankton Production Symposium

Type: Conference abstract for conference

Status: Published     |    Year: 2016

 

Can rectangular mesh codends improve size selectivity in Mediterranean multispecies trawl fisheries?

Gökçe, G. ; Herrmann, Bent ; Ozbilgin, H. ; Saygu, I. ; Kalecik , E. ; Demir, O. ; Tokaç, A. ; Krag, Ludvig Ahm
Presented at:
World Fisheries Congress

Type: Conference abstract for conference

Status: Published     |    Year: 2016

  PDF

Danish seine – Ecosystem effects of fishing (gear performance trials)

Noack, Thomas ; Madsen, Niels ; Wieland, Kai ; Stepputtis, Daniel ; Krag, Ludvig Ahm
Presented at:
ICES Annual Science Conference 2016

Type: Poster

Status: Published     |    Year: 2016

  PDF

Employing a trawl independent multi-compartment towing rig to study selectivity of crustaceans in trawls

Krag, Ludvig Ahm ; Krafft, Bjørn A. ; Engås, A. ; Herrmann, Bent
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2016

 

Escape panels in trawls – a consistent management tool?

Krag, Ludvig Ahm ; Herrmann, Bent ; Feekings, Jordan P. ; Karlsen, Junita Diana
in: Aquatic Living Resources, vol: 29, issue: 3

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1051/alr/2016028

  PDF

Industry-led fishing gear selectivity improvements. How can we increase flexibility and ownership over the gears used whole ensuring an effective introduction of the new EU Common Fisheries Policy?

Feekings, Jordan P. ; Krag, Ludvig Ahm ; Malta, Tiago Alexandre Matias da Veiga ; Lund, Henrik S. ; Eliasen, Søren ; Ulrich, Clara ; Mortensen, Lars O.
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2016

  PDF

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
in: Fisheries Research, vol: 175, pages: 51-56

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1016/j.fishres.2015.11.017

  PDF

Optimizing data collection processes for industry collected gear selectivity data

Malta, Tiago Alexandre Matias da Veiga ; Feekings, Jordan P. ; Herrmann, Bent ; Krag, Ludvig Ahm
Presented at:
ICES Annual Science Conference 2016

Type: Conference abstract for conference

Status: Published     |    Year: 2016

 

Paths to enhance the development and the uptake of industry-led technical solutions to improved selectivity

Feekings, Jordan P. ; Eliasen, Søren Qvist ; Krag, Ludvig Ahm ; Mortensen, Lars O. ; Malta, Tiago Alexandre Matias da Veiga ; Ulrich, Clara
Presented at:
International Institute of Fisheries Economics and Trade Conference

Type: Conference abstract for conference

Status: Published     |    Year: 2016

  PDF

Quantifying the escape mortality of trawl caught Antarctic krill (Euphausia superba)

Krafft, Bjørn A ; Krag, Ludvig Ahm ; Engås, Arill ; Nordrum, Sigve ; Bruheim, Inge ; Herrmann, Bent
in: P L o S One, vol: 11, issue: 9

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1371/journal.pone.0162311

 

Quantifying trawl caught escape mortality of Antarctic krill (Euphausia superba).

Krafft, B. A. ; Krag, Ludvig Ahm ; Engås, A. ; Nordrum, S. ; Bruheim, I. ; Herrmann, Bent

Type: Report

Status: Published     |    Year: 2016

 

South Orkney Island 2016 Antarctic krill and ecosystem monitoring

Krafft, B. A. ; Skaret, G. ; Krag, Ludvig Ahm ; Rustand, T. ; Pedersen, R.

Type: Report

Status: Published     |    Year: 2016

  PDF

Understanding and predicting size selection in diamond-mesh cod ends for danish seining: A study based on sea trials and computer simulations

Herrmann, Bent ; Krag, Ludvig Ahm ; Feekings, Jordan P. ; Noack, Thomas
in: Marine and Coastal Fisheries, vol: 8, issue: 1, pages: 277-291

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1080/19425120.2016.1161682

 

Understanding and predicting the size selectivity in Mediterranean trawl codends based on fish morphology

Tokaç, A. ; Herrmann, Bent ; Gökçe, G. ; Krag, Ludvig Ahm
Presented at:
World Fisheries Congress

Type: Conference abstract for conference

Status: Published     |    Year: 2016

 

Understanding the size selectivity of red mullet (Mullus barbatus) in Mediterranean trawl codends: A study based on fish morphology

Tokaç, Adnan ; Herrmann, Bent ; Gökçe, Gökhan ; Krag, Ludvig Ahm ; Nezhad, Davod S. ; Lök, Altan ; Kaykaç, Hakan ; Aydın, Celalettin ; Ulaş, Ali
in: Fisheries Research, vol: 174, pages: 81-93

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1016/j.fishres.2015.09.002

  PDF

Using fish behaviour to separate fish from Nephrops in a horizontally divided codend in the mixed trawl fishery

Karlsen, Junita Diana ; Krag, Ludvig Ahm ; Herrmann, Bent ; Lund, Henrik S.
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2016

2015
  PDF

Antarctic krill and ecosystem monitoring survey at South Orkney Islands in 2015, and assessing escape mortality of krill in trawls

Skaret, Georg ; Krafft, Bjørn A. ; Krag, Ludvig Ahm ; Pedersen, Ronald

Type: Report

Status: Published     |    Year: 2015

 

Antarctic krill; assessment of mesh size selectivity and escape mortality from trawls

Krafft, Bjørn A. ; Krag, Ludvig Ahm ; Herrmann, Bent ; Engas, Arill ; Bruheim, Inge ; Nordrum, Sigve

Type: Working paper

Status: Published     |    Year: 2015

  PDF

A review of programs established to encourage industry-led approaches to selective gear development

Feekings, Jordan P. ; O’Neill, Barry ; Krag, Ludvig Ahm ; Ulrich, Clara
Presented at:
ICES Annual Science Conference 2015

Type: Conference abstract for conference

Status: Published     |    Year: 2015

  PDF

Assessment of mortality of Antarctic krill (Euphausia superba) escaping from a trawl

Krafft, Bjørn A. ; Krag, Ludvig Ahm
in: Fisheries Research, vol: 170, pages: 102-105

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1016/j.fishres.2015.05.019

 

Can the rectangular mesh codends solve multispecies fishery selectivity problems?

Gokce, Gokhan ; Herrmann, Bent ; Ozbilgin, Huseyin ; Saygu, Ismet ; Kal-ecik, Ebrucan ; Demir, Oğuzhan ; Tokaç, Adnan ; Krag, Ludvig Ahm
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2015

 

Danish seine – ecosystem effects of fishing

Noack, Thomas ; Frandsen, Rikke ; Krag, Ludvig Ahm ; Madsen, Niels
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2015

  PDF

Developing a computer vision method to quantify impact on seabed of bottom gillnets

Savina, Esther ; Lundgren, Bo ; Krag, Ludvig Ahm ; Madsen, Niels
Presented at:
DEMaT’15

Type: Poster

Status: Published     |    Year: 2015

 

Escape panels in trawls – a consistent management tool?

Krag, Ludvig Ahm ; Herrmann, Bent ; Feekings, Jordan P. ; Karlsen, Junita Diana
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2015

 

Fishing for food: simple changes in codend design improves the quality of fish products

Karlsen, Junita Diana ; Krag, Ludvig Ahm ; Albertsen, Christoffer Moesgaard ; Frandsen, Rikke
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2015

 

Improving escape panel selectivity by active stimulation of fish behaivour

Krag, Ludvig Ahm ; Herrmann, Bent ; Feekings, Jordan P. ; Karlsen, Junita Diana
Presented at:
ICES-FAO Working Group on Fishing Technology and Fish Behaviour

Type: Conference abstract for conference

Status: Published     |    Year: 2015

 

Improving the performance of a grid used in Norway lobster fisheries

Madsen, Niels ; Lewy, Peter ; Feekings, Jordan P. ; Krag, Ludvig Ahm ; Frandsen, Rikke ; Hansen, K
in: Journal of Applied Ichthyology, vol: 31, issue: 3, pages: 525-528

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1111/jai.12693

 

Size selection in codends made of thin-twined Dyneema netting compared to standard codends: A case study with cod, plaice and flounder

Herrmann, Bent ; Wienbeck, Harald ; Stepputis, D. ; Krag, Ludvig Ahm ; Feekings, Jordan P. ; Moderhak, Waldemar
in: Fisheries Research, vol: 167, pages: 82-91

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1016/j.fishres.2015.01.014

 

Species selectivity in different sized topless trawl designs: Does size matter?

Krag, Ludvig Ahm ; Herrmann, Bent ; Karlsen, Junita Diana ; Mieske, Bernd
in: Fisheries Research, vol: 172, pages: 243-249

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1016/j.fishres.2015.07.010

2014
  PDF

Danish seine - An environmental friendly fishing method?

Noack, Thomas ; Eggers, Florian ; Frandsen, Rikke ; Krag, Ludvig Ahm ; Madsen, Niels
Presented at:
ICES Symposium 2014

Type: Poster

Status: Published     |    Year: 2014

 

Discards of Danish set nets fisheries in the Kattegat

Savina, Esther ; Krag, Ludvig Ahm ; Frandsen, Rikke ; Madsen, Niels
Presented at:
ICES Symposium 2014

Type: Poster

Status: Published     |    Year: 2014

  PDF

Distribution of Antarctic krill and apex predators at South Orkney Islands in 2014, and assessing escape mortality of krill in trawls

Krafft, Bjørn A. ; Krag, Ludvig Ahm ; Klevjer, Thor ; Skaret, Georg ; Pedersen, Ronald

Type: Report

Status: Published     |    Year: 2014

 

Fangstmetoden ved snurrevod skal udvikles

Noack, Thomas ; Frandsen, Rikke ; Krag, Ludvig Ahm ; Madsen, Niels
in: Fiskeritidende, vol: 21, issue: 51, pages: 24

Type: Contribution to newspaper - Newspaper article

Status: Published     |    Year: 2014

  PDF

Inferring fish escape behaviour in trawls based on catch comparison data: Model development and evaluation based on data from Skagerrak, Denmark

Krag, Ludvig Ahm ; Herrmann, Bent ; Karlsen, Junita Diana
in: PLOS ONE, vol: 9, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1371/journal.pone.0088819

 

Nyt trawldesign kan gøre jomfruhummer fiskeriet meget mere effektivt

Krag, Ludvig Ahm ; Frandsen, Rikke ; Dinesen, Grete E. ; Karlsen, Junita Diana ; Lund, Henrik S.
in: Fiskeritidende, vol: 21, issue: 48, pages: 10-12

Type: Contribution to newspaper - Newspaper article

Status: Published     |    Year: 2014

  PDF

Size selection of Antarctic krill (Euphausia superba) in trawls

Krag, Ludvig Ahm ; Herrmann, Bent ; Iversen, Svein A. ; Engas, Arill ; Nordrum, Sigve ; Krafft, Bjorn A.
in: PLOS ONE, vol: 9, issue: 8

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1371/journal.pone.0102168

 

Using small meshed collecting bags on trawls to quantify trawls seabed disturbance of aquatic organisms

Krag, Ludvig Ahm
Presented at:
ICES Symposium 2014

Type: Poster

Status: Published     |    Year: 2014

 

Værdioptimering af fiskefangsten i dansk blandet fiskeri (VærdiFisk) - forbedret kvalitet og selektion som følge af redskabsudvikling

Karlsen, Junita Diana ; Krag, Ludvig Ahm ; Lund, Henrik S. ; Lewy, Peter ; Albertsen, Christoffer Moesgaard ; Kajgaard, Lars ; Clausen, Bo ; Thomsen, Flemming ; Jensen, Lars Peter ; Kajgaard, Jesper ; Kusk, Martin ; Pedersen, Claus ; Madsen, Niels ; Frandsen, Rikke

Type: Report

Status: Published     |    Year: 2014

2013
 

Development of sorting grids for Norway lobster fisheries

Madsen, Niels ; Frandsen, Rikke ; Feekings, Jordan P. ; Krag, Ludvig Ahm
Presented at:
Mini symposium : Impacts of fishing on the environment

Type: Poster

Status: Published     |    Year: 2013

 

Dokumentation af selektiv effekt af SELTRA 180

Krag, Ludvig Ahm ; Poulsen, M.S. ; Vinther, Morten ; Herrmann, Bent ; Madsen, Niels ; Frandsen, Rikke ; Karlsen, Junita Diana

Type: Report

Status: Published     |    Year: 2013

 

Højere kvalitet på trawlfangst hummerfisk

Karlsen, Junita Diana ; Krag, Ludvig Ahm ; Kajgaard, L. ; Clausen, B. ; Thomsen, F. ; Jensen, L.P. ; Kajgaard, J. ; Kusk, M. ; Pedersen, C. ; Lund, H. ; Madsen, Niels ; Frandsen, Rikke
Presented at:
DanFish International Fisheries Exhibition

Type: Poster

Status: Published     |    Year: 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

Herrmann, Bent ; Mieske, Bernd ; Stepputtis, Daniel ; Krag, Ludvig Ahm ; Madsen, Niels ; Noack, Thomas
in: ICES Journal of Marine Science, vol: 70, issue: 4, pages: 850-863

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2013     |    DOI: https://doi.org/10.1093/icesjms/fst032

 

SELTRA selektionspaneler i Kattegat og Skagerrak

Krag, Ludvig Ahm ; Karlsen, Junita Diana ; Madsen, Niels
Presented at:
DanFish International Fisheries Exhibition

Type: Poster

Status: Published     |    Year: 2013

  PDF

Studies of Antarctic krill, krill predators and trawl gear at South Orkney Islands

Krafft, B. ; Skaret, G. ; Krag, Ludvig Ahm ; Trathan, P. ; Ying, Y.

Type: Report

Status: Published     |    Year: 2013

 

The influence of twine thickness, twine number and netting orientation on codend selectivity

Herrmann, Bent ; Wienbeck, Harald ; Moderhak, Waldemar ; Stepputtis, Daniel ; Krag, Ludvig Ahm
in: Fisheries Research, vol: 145, pages: 22-36

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2013     |    DOI: https://doi.org/10.1016/j.fishres.2013.03.002

2012
 

Comparing selectivity of a standard and turned mesh T90 codend during towing and haul-back

Madsen, Niels ; Herrmann, Bent ; Frandsen, Rikke ; Krag, Ludvig Ahm
in: Aquatic Living Resources, vol: 25, issue: 3, pages: 231-240

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2012     |    DOI: https://doi.org/10.1051/alr/2012021