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dc.contributor.advisorLarsen, Roger B.
dc.contributor.authorOnandia Calvo, Iñigo
dc.description.abstractThe aim of this research was to prove a mandatory square mesh panel in the Basque trawling fleet operating in the ICES subzones VIIIabd. Selectivity parameters were calculated for the dual selection system (70 mm codend + 100 mm square mesh panel in extension piece) and for commercial codends (70 mm codend), with the aim to compare them and determine the effect of the square mesh panel in the overall selectivity of the gear for three selected species (Hake, Red mullet and Pout), using a three compartment setup (codend, codend cover and square mesh panel cover). The low escape-panel contact found in the selected species, especially in the case of the hake can be attributed to different factors such as passive behaviour in the trawl, high turbidity and high trawling speed. The data were analyzed with the software SELNET that enables the analysis of data for experimental designs involving multiple compartments by means of complex selection models.en
dc.publisherUniversitetet i Tromsøen
dc.publisherUniversity of Tromsøen
dc.rights.holderCopyright 2012 The Author(s)
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)en_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en
dc.titleJuvenile hake (Merluccius merluccius) discard minimization in otter board trawling by square mesh escaping window selectivity device : proving a mandatory selectivity device in the Basque trawling fleeten
dc.typeMaster thesisen

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Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)