L
Ludvig Ahm Krag
Researcher at Technical University of Denmark
Publications - 92
Citations - 1445
Ludvig Ahm Krag is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Fishing & Antarctic krill. The author has an hindex of 21, co-authored 86 publications receiving 1117 citations. Previous affiliations of Ludvig Ahm Krag include Fisheries Research Services.
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Prediction of selectivity from morphological conditions: Methodology and a case study on cod (Gadus morhua)
TL;DR: Results show that the morphology-based simulations can be used to explain both the within-haul and the between-haul variations previously reported from sea trials.
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Inferring fish escape behaviour in trawls based on catch comparison data: model development and evaluation based on data from Skagerrak, Denmark.
TL;DR: A new mathematical model is developed and applied to catch data to extract detailed and quantitative information about species- and size-dependent escape behaviour in towed fishing gear such as trawls and quantified the extent to which behavioural responses set limits for the large mesh panel’s selective efficiency.
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Simulation-based study of the combined effect on cod-end size selection of turning meshes by 90 ◦ and reducing the number of meshes in the circumference for round fish
TL;DR: FEMNET, a numerical tool based on the finite element method, was used to estimate the shapes of four different designs of trawl cod-ends during fishing operations to predict how these design alterations – alone or combined – may act on the selectivity of each cod-end under identical fishing conditions.
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Evaluation of a simple means to reduce discard in the Kattegat-Skagerrak Nephrops ( Nephrops norvegicus ) fishery: Commercial testing of different codends and square-mesh panels
TL;DR: In this paper, the authors investigate the position of a 90mm square-mesh panel (SMP), the effect of increasing the mesh size from 90 to 120mm in the SMP, and effect of inserting a 90 mm SMP in an 80 mm codend and the effect on increasing the codend mesh size in a total of 89 hauls.
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The influence of twine thickness, twine number and netting orientation on codend selectivity
TL;DR: The results demonstrate the benefit of using a relatively thin single twine netting to ensure the appropriate size selection with round fish and the best results were obtained using netting with a T90 orientation.