Cristin-resultat-ID: 1819213
Sist endret: 6. august 2020 14:19
NVI-rapporteringsår: 2020
Resultat
Vitenskapelig artikkel
2020

Does the efficiency of a counter-herding device depend on seabed contact?

Bidragsytere:
  • Valentina Melli
  • Ludvig Ahm Krag
  • Bent Herrmann
  • Junita Diana Karlsen og
  • Jordan Feekings

Tidsskrift

Fisheries Research
ISSN 0165-7836
e-ISSN 1872-6763
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2020
Publisert online: 2020
Volum: 230
Artikkelnummer: 105686
Open Access

Importkilder

Scopus-ID: 2-s2.0-85087397009

Beskrivelse Beskrivelse

Tittel

Does the efficiency of a counter-herding device depend on seabed contact?

Sammendrag

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. FLEXSELECT, which was designed to direct fish away from the trawl by means of sweeping ropes in the herding area, has been shown to be highly effective on both roundfish and flatfish species. However, by adding sweeping elements we could be increasing the benthic impact of trawling. Therefore, in this study we investigated if the effect of FLEXSELECT can be maintained when raising the ropes off the seabed. A reduction in fish bycatch could still be achieved, but the effect of FLEXSELECTraised with respect to the previous design was significantly different for four of the seven species analysed. While for some species the effect was lower, it substantially increased for cod (Gadus morhua), making it highly relevant for the Nephrops fisheries, as well as for other fisheries in needs of avoiding cod catches. The results offer insights regarding species behavioural responses to FLEXSELECTraised, to be used for future developments of counter-herding devices in commercial fisheries without the addition of seabed impact to the baseline gears.

Bidragsytere

Valentina Melli

  • Tilknyttet:
    Forfatter
    ved Danmarks Tekniske Universitet

Ludvig Ahm Krag

  • Tilknyttet:
    Forfatter
    ved Danmarks Tekniske Universitet

Bent Herrmann

  • Tilknyttet:
    Forfatter
    ved Norges fiskerihøgskole ved UiT Norges arktiske universitet
  • Tilknyttet:
    Forfatter
    ved Sjømatteknologi ved SINTEF Ocean

Junita Diana Karlsen

  • Tilknyttet:
    Forfatter
    ved Danmarks Tekniske Universitet

Jordan Feekings

  • Tilknyttet:
    Forfatter
    ved Danmarks Tekniske Universitet
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