Browsing SINTEF Open by Author "Krag, Ludvig Ahm"
Now showing items 1-8 of 8
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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
Krag, Ludvig Ahm; Herrmann, Bent; Karlsen, Juanita Diana (Journal article; Peer reviewed, 2014-02-20)During the fishing process, fish react to a trawl with a series of behaviours that often are species and size specific. Thus, a thorough understanding of fish behaviour in relation to fishing gear and a scientific understanding ... -
A netting-based alternative to rigid sorting grids in the small-meshed Norway pout (Trisopterus esmarkii) trawl fishery
Eigaard, Ole R.; Herrmann, Bent; Feekings, Jordan; Krag, Ludvig Ahm; Sparrevohn, Claus R. (Journal article; Peer reviewed, 2021-01-28)A new bycatch reduction device, termed “Excluder”, is presented as an alternative to a traditional rigid sorting grid, mandatory in the small-meshed Norway Pout (Trisopterus esmarkii) trawl fishery in the North Sea. The ... -
Predicting optimal combinations of by‐catch reduction devices in trawl gears: A meta‐analytical approach
Melli, Valentina; Herrmann, Bent; Karlsen, Junita Diana; Feekings, Jordan; Krag, Ludvig Ahm (Journal article; Peer reviewed, 2019)Global efforts to reduce unwanted catches have led to the development of a vast array of by‐catch reduction devices (BRDs), in particular for mixed trawl fisheries. Some of these BRDs could likely benefit from being combined. ... -
Quantification of catch composition in fisheries: A methodology and its application to compare biodegradable and nylon gillnets
Cerbule, Kristine; Savina, Esther; Herrmann, Bent; Larsen, Roger B.; Feekings, Jordan Paul; Krag, Ludvig Ahm; Pellegrinelli, Alina (Peer reviewed; Journal article, 2022)When evaluating fishing gear catches, the focus is often on a few species as opposed to the entire catch. In some fisheries this can lead to ignoring major part of catch composition. Thus, there is a need for a more holistic ... -
Size selection of Antarctic krill (Euphausia superba) in a commersial codend and trawl body
Herrmann, Bent; Krag, Ludvig Ahm; Krafft, Bjørn Arne (Journal article; Peer reviewed, 2018-11)During fishing, many fish species are able to avoid the net walls of the trawl body and so the majority of size selection occurs in the codend of the net. Antarctic krill (Euphausia superba) are regarded as true planktonic ... -
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; Gökçe, gökhan; Krag, Ludvig Ahm; Nezhad, Davud Sadegh (Journal article; Peer reviewed, 2018-09-25)European hake (Merluccius merluccius) is an important commercial species for several European bottom trawl fisheries. Therefore, understanding the influence of codend mesh size and shape on the size selection of European ... -
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; Noack, Thomas (Journal article; Peer reviewed, 2016)Danish seining is an important fishing method used to harvest demersal species. Knowledge about the size selectivity of different demersal species with this type of fishing gear is therefore of importance for managing the ... -
When is enough, enough? Quantifying trade-offs between information quality and sampling effort for fishing gear selectivity data
Veiga-Malta, Tiago; Feekings, Jordan; Herrmann, Bent; Krag, Ludvig Ahm (Journal article; Peer reviewed, 2018-06-21)There is general pressure throughout the world’s fisheries for the industry to have greater involvement not only in the development of fishing gears but also in the testing and documentation of their effect. In the European ...