Blar i forfatter "Petetta, Andrea"

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    • Dredge selectivity in a Mediterranean striped venus clam (Chamelea gallina) fishery 

      Petetta, Andrea; Herrmann, Bent; Virgili, Massimo; Bargione, Giada; Vasapollo, Claudio; Lucchetti, Alessandro (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-15)
      The striped venus clam Chamelea gallina is the target of a large fleet of hydraulic dredgers, which represent an important fishing sector in terms of income and landings in the Mediterranean Sea. Although there is information on the catch rates, impact and discards related to this fishery, the size selection process carried out by the dredge during trawl under commercial conditions is practically ...

    • Effect of Extension Piece Design on Catch Patterns in a Mediterranean Bottom Trawl Fishery 

      Petetta, Andrea; Herrmann, Bent; Virgili, Massimo; Li Veli, Daniel; Brinkhof, Jesse; Lucchetti, Alessandro (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-18)
      The catch composition of bottom trawls is commonly refined and improved through changes in codend design. Measures like reducing the number of meshes in codend circumference or turning diamond netting by 90 degrees are well known to improve the size selectivity of fish species with rounded cross-sectional shape. Based on this we speculated whether the same measures, if applied in other parts of ...

    • Estimating selectivity of experimental diamond (T0) and turned mesh (T90) codends in multi-species Mediterranean bottom trawl 

      Petetta, Andrea; Herrmann, Bent; Virgili, Massimo; De Marco, Rocco; Canduci, Giovanni; Veli, Daniel Li; Bargione, Giada; Vasapollo, Claudio; Lucchetti, Alessandro (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-11)
      This paper evaluates the effect of changing from a diamond mesh codend (T0) to a 90° turned mesh codend (T90) on the size selectivity of seven commercially important species in the Mediterranean bottom trawl fishery. In sea trials conducted in the north-western Adriatic, two experimental codends made of 54 mm nominal mesh size netting and differing only in mesh configuration were alternately mounted ...

    • Every animal matters! Evaluating the selectivity of a Mediterranean bottom trawl fishery from a species community perspective 

      Petetta, Andrea; Herrmann, Bent; Veli, Daniel Li; Virgili, Massimo; De Marco, Rocco; Lucchetti, Alessandro (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-23)
      Bottom trawl fisheries often catch several species simultaneously. However, most studies addressing the catch performance and selectivity of a specific trawl focus on a few commercially important or most vulnerable species requiring management measures. By contrast, the present study considers the multispecies nature of Mediterranean bottom trawl fisheries through a holistic approach that accounts ...

    • Is there a limit to the potential effects of shortening lastridge ropes on the size selectivity of diamond mesh codends? 

      Sistiaga, Manu; Herrmann, Bent; Brinkhof, Jesse; Larsen, Roger B.; Santos, Juan; Stepputtis, Daniel; Brinkhof, Ilmar; Jacques, Nadine; Cerbule, Kristine; Petetta, Andrea; Cuende, Elsa; Kvalvik, Liz Beate Kolstad (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-21)
      Shortening codend lastridge ropes can be an effective fishing gear modification to improve the size selection properties in diamond mesh codends. Lastridge ropes attached to codend selvedges withstand the longitudinal forces created by the catch building up and therefore, prevent the codend meshes from closing. However, the extent to which the lastridge ropes should be shortened to maximize the ...