Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Junita Diana Karlsen"'
Publikováno v:
PLoS ONE, Vol 9, Iss 2, p e88819 (2014)
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 of the ability of diff
Externí odkaz:
https://doaj.org/article/a3fad0ddf5c84d248bb83232ad9644b9
Publikováno v:
ICES Journal of Marine Science. 78:2818-2829
We tested if a newly developed luminous netting, VISIONET, could change the vertical behaviour of six commercially important species in a Nephrops (Nephrops norvegicus) trawl fishery. We inserted a V-shaped piece of VISIONET ascending on each side of
Publikováno v:
Karlsen, J D, Krag, L A, Herrmann, B & Lund, H S 2019, ' Using vertical distribution to separate fish from crustaceans in a mixed species trawl fishery ', Canadian Journal of Fisheries and Aquatic Sciences, vol. 76, no. 10, pp. 1781-1794 . https://doi.org/10.1139/cjfas-2018-0313
A major challenge in mixed fisheries is achieving acceptable size selectivity for morphologically different species using the same fishing gear. Separator trawls can have different selective properties in the upper and lower compartments and provide
Publikováno v:
Melli, V, Krag, L A, Herrmann, B, Karlsen, J D & Feekings, J P 2020, ' Does the efficiency of a counter-herding device depend on seabed contact? ', Fisheries Research, vol. 230, 105686 . https://doi.org/10.1016/j.fishres.2020.105686
Accepted manuscript version, licensed CC BY-NC-ND 4.0. To prevent unwanted fish bycatch from entering the trawl, we modified a counter-herding device, FLEXSELECT, developed for a Northeast Atlantic Nephrops (Nephrops norvegicus) trawl fishery. FLEXSE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b0beff4235497e87faaf773bfe299a7
https://hdl.handle.net/10037/18806
https://hdl.handle.net/10037/18806
Publikováno v:
Noack, T, Savina, E & Karlsen, J D 2020, ' Survival of undersized plaice ( Pleuronectes platessa ) discarded in the bottom otter trawl and Danish seine mixed fisheries in Skagerrak ', Marine Policy, vol. 115, 103852 . https://doi.org/10.1016/j.marpol.2020.103852
The landing obligation of the new Common Fisheries Policy includes a “high survival”-exemption, which allows to continue discarding of fish with scientifically proven high chances to survive the process of capture, handling and release. This stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59fd916398476453c60c53478b87bba5
https://orbit.dtu.dk/en/publications/f2997197-b6d3-432d-99c8-34a7b4ae2629
https://orbit.dtu.dk/en/publications/f2997197-b6d3-432d-99c8-34a7b4ae2629
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 74:486-493
The efficiency of escape panels inserted in trawls relies on fish actively attempting to escape through them. However, several studies indicate that most fish drift towards the aft end of the trawl, passing the escape panel through which they easily
Autor:
Ludvig Ahm Krag, Niels Madsen, Junita Diana Karlsen, Esther Savina, Kasper Kristensen, Rikke Frandsen
Publikováno v:
Savina, E, Karlsen, J D, Frandsen, R, Krag, L A, Kristensen, K & Madsen, N 2016, ' Testing the effect of soak time on catch damage in a coastal gillnetter and the consequences on processed fish quality ', Food Control, vol. 70, pp. 310-317 . https://doi.org/10.1016/j.foodcont.2016.05.044
This study aims at testing how to improve catch quality aboard a coastal gillnetter by looking at an easily controllable parameter known to have an effect on the degree of fish damage, soak time, and investigating if the registered damages on whole f
Publikováno v:
Melli, V, Herrmann, B, Karlsen, J D, Feekings, J P & Krag, L A 2019, ' Is two better than one? Predicting the performance of a combination of bycatch reduction devices in a Nephrops-directed fishery ', ICES-FAO Working Group on Fishing Technology and Fish Behavior 2019, Shanghai, China, 08/04/2019-12/04/2019 .
Technical University of Denmark Orbit
Technical University of Denmark Orbit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4fe7dbd098b85aab02e95ecdbcab5af9
https://orbit.dtu.dk/en/publications/297941db-9d6c-4d1f-91a1-527abb2254bb
https://orbit.dtu.dk/en/publications/297941db-9d6c-4d1f-91a1-527abb2254bb
Publikováno v:
Fisheries Research. 172:243-249
Most demersal trawl fisheries are conducted in a multispecies setting, and the catch consists of several different species. An inherent challenge in such fisheries is to provide both biologically and economically sustainable exploitation of individua
Publikováno v:
Fisheries Research
Melli, V, Krag, L A, Herrmann, B & Karlsen, J D 2019, ' Can active behaviour stimulators improve fish separation from Nephrops (Nephrops norvegicus) in a horizontally divided trawl codend? ', Fisheries Research, vol. 211, pp. 282-290 . https://doi.org/10.1016/j.fishres.2018.11.027
Melli, V, Krag, L A, Herrmann, B & Karlsen, J D 2019, ' Can active behaviour stimulators improve fish separation from Nephrops (Nephrops norvegicus) in a horizontally divided trawl codend? ', Fisheries Research, vol. 211, pp. 282-290 . https://doi.org/10.1016/j.fishres.2018.11.027
A promising design to improve selectivity in the Nephrops-directed trawl fishery is the horizontally divided trawl codend. Previous studies have succeeded in separating the majority of fish from Nephrops; however, cod (Gadus morhua), juvenile roundfi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92bac3433c7657f55c4845b34212a91e
http://hdl.handle.net/11250/2592569
http://hdl.handle.net/11250/2592569