Blar i forfatter "Megalofonou, Persefoni"

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    • Combining selection models and population structures to inform fisheries management: a case study on hake in the Mediterranean bottom trawl fishery 

      Mytilineou, Chryssi; Herrmann, Bent; Kavadas, Stefanos; Smith, Chris J.; Megalofonou, Persefoni (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-10)
      The reduction of juvenile catch and discards are important targets in fisheries policy. This work examines how selection models can predict the size structure (LFD) of discards and landings considering the effects of area, time period, gear and fisher behaviour. Additional exploitation indicators related to the gear used, fisher's selection pattern, and discards were also estimated. The approach is ...

    • Escape, discard, and landing probability in multispecies Mediterranean bottom-trawl fishery 

      Mytilineou, Chryssi; Herrmann, Bent; Mantopoulou-Palouka, Danai; Sala, Antonello; Megalofonou, Persefoni (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-17)
      Commercial bycatch species and their exploitation pattern in the Mediterranean trawl fishery are little studied. The present work examines the overall size-selection pattern, both regarding the trawl in the sea and the fisher onboard the vessel, for seven commercial bycatch species using different codends. The applied selection model predicted the escape, discard, and landing probability for each ...

    • 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, ...

    • Impacts on biodiversity from codend and fisher selection in bottom trawl fishing 

      Mytilineou, Chryssi; Herrmann, Bent; Smith, Christopher j.; Mantopoulou-Palouka, Danai; Anastasopoulou, Aikaterini; Siapatis, Apostolos; Sala, Antonello; Megalofonou, Persefoni; Papadopoulou, Nadia; Vassilopoulou, Vassiliki; Stamouli, Caterina; Kavadas, Stefanos; Lefkaditou, Evgenia; Nicolaidou, Artemis (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-22)
      Fisheries have important impacts on marine biodiversity. In this work, combined information on the abundance, species richness, diversity indices, species composition, trophic level and vulnerability index were examined for the first-time to detect differences in five units related to trawl fishing: the fish assemblage entering the trawl codend, and the escaping, retained, discarded and landed ...

    • 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 ...