Vis enkel innførsel

dc.contributor.authorMelli, Valentina
dc.contributor.authorHerrmann, Bent
dc.contributor.authorKarlsen, Junita Diana
dc.contributor.authorFeekings, Jordan
dc.contributor.authorKrag, Ludvig Ahm
dc.date.accessioned2019-12-06T08:15:33Z
dc.date.available2019-12-06T08:15:33Z
dc.date.created2019-12-05T13:15:49Z
dc.date.issued2019
dc.identifier.issn1467-2960
dc.identifier.urihttp://hdl.handle.net/11250/2632088
dc.description.abstractGlobal 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. However, the number of possible combinations would be prohibitive to be tested experimentally. Therefore, in this study we propose a meta‐analytical approach that combines the data available on BRDs tested independently in a fishery and predict the theoretical selectivity of all possible combinations of those devices. This allows to identify promising BRD combinations, worth experimental investigation and flexible trawl configurations, where the selectivity can be substantially modified by adding or removing one BRD, thus aiding fishermen in adapting to high variability in catch composition and quota availability. To illustrate the approach, we used BRDs developed for the well‐studied Nephrops (Nephrops norvegicus, Nephropidae) directed mixed trawl fishery in the Skagerrak and Kattegat seas. We predicted the selectivity of 100 BRD combinations for Nephrops, cod (Gadus morhua, Gadidae) and haddock (Melanogrammus aeglefinus, Gadidae), compared them in terms of absolute selectivity and performance under realistic catch scenarios, from both single‐ and multispecies perspectives, and identified 15 BRD combinations that could be worth future experimental investigation. The meta‐analytical approach makes best use of existing knowledge and leads to new insights about the potential for improvement and flexibility in trawl selectivity. This could benefit a variety of mixed trawl fisheries and help developing a new generation of more flexible gears, with multiple BRDs integrated in their structure.nb_NO
dc.language.isoengnb_NO
dc.publisherWiley online librarynb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titlePredicting optimal combinations of by‐catch reduction devices in trawl gears: A meta‐analytical approachnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.journalFish and Fisheriesnb_NO
dc.identifier.doi10.1111/faf.12428
dc.identifier.cristin1757156
cristin.unitcode7566,2,0,0
cristin.unitnameSjømatteknologi
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal