Blar i forfatter Artikler, rapporter og annet (Norges fiskerihøgskole) "Sala, Antonello"

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    • Effect of Codend Circumference on the Size Selection of Square-Mesh Codends in Trawl Fisheries 

      Sala, Antonello; Herrmann, Bent; De Carlo, Francesco; Lucchetti, Alexandro; Brcic, Jure (Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-07-29)
      It is well established that increasing mesh number in the circumference of a diamond-mesh trawl codend can reduce size selection for round fish, whereas selection for flat fish species is unaffected. This effect has also been documented in Mediterranean trawl fisheries. In contrast, no information is available with regard to the effect of increasing mesh number in the circumference of square-mesh ...

    • Estimating overall size-selection pattern in the bottom trawl fishery for four economically important fish species in the Mediterranean Sea 

      Mytilineou, Chryssi; Herrmann, Bent; Sala, Antonello; Mantopoulou-Palouka, Danai; Megalofonou, Persefoni (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-18)
      The management of multispecies fisheries, such as the Mediterranean bottom trawl fishery, is always a challenge. However, information on gear selectivity and discards has been studied separately so far. In this paper, the overall size-selection pattern by the trawl codend in the sea and by the fisher onboard the vessel is investigated for four commercially important fish species, Mullus barbatus, ...

    • A framework for results-based management in fisheries 

      Nielsen, Kåre Nolde; Aschan, Michaela; Agnarsson, Sveinn; Ballesteros, Marta; Baudron, Alan; Borges, Maria de Fatima; Campos, Aida; Chapela, Rosa; Daníelsdóttir, Anna Kristin; Erzini, Karim; Gregersen, Olavur; Holm, Petter; Lucchetti, Alessandro; Margeirsson, Sveinn; Mendes, Hugo Vilela; Olsen, Petter; Rangel, Mafalda; Sala, Antonello; Santiago, José Luis; Sigurdardottir, Sigridur; Silva, Cristina; Sykes, Daryl; Vidarsson, Jonas Runar; Virgili, Massimo; Wise, Laura; Fernandes, Paul George (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-30)
      We present a framework for results-based management (RBM) of commercial fisheries. The core idea of RBM is to reduce micromanagement by delegating management responsibility to resource users. The RBM framework represents an industrial organization approach to co-management and comprises three defining processes, conducted by three independent “agents”: (i) an “authority” defines specific and ...

    • How many fish need to be measured to effectively evaluate trawl selectivity? 

      Herrmann, Bent; Sistiaga, Manu Berrondo; Santos, Juan; Sala, Antonello (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      The aim of this study was to provide practitioners working with trawl selectivity with general and easily understandable guidelines regarding the fish sampling effort necessary during sea trials. In particular, we focused on how many fish would need to be caught and length measured in a trawl haul in order to assess the selectivity parameters of the trawl at a designated uncertainty level. We also ...

    • Modelling gear and fishers size selection for escapees, discards, and landings: a case study in Mediterranean trawl fisheries 

      Mytilineou, Chryssi; Herrmann, Bent; Mantopoulou-Palouka, Danai; Sala, Antonello; Megalofonou, Persefoni (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-19)
      Gear selectivity and discards are important issues related to fisheries management but separately modelled. This work examines for the first time the overall size-selection pattern on the total amount of individuals of a species entering the trawl codend. An innovative approach was used based on modelling the escapement through the codend in the sea and the subsequently selection process by the ...