Blar i forfatter "Cheng, Zhaohai"

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    • Comparing size selectivity of traditional and knotless diamond-mesh codends in the Iceland redfish (Sebastes spp.) fishery 

      Cheng, Zhaohai; Einarsson, Haraldur Arnar; Bayse, Shannon; Herrmann, Bent; Winger, Paul (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-30)
      The size selectivity and usability of two diamond mesh codends, a traditional two-panel codend versus an experimental four-panel ultra-cross knotless mesh codend, were compared using the covered codend method in the Iceland redfish (<i>Sebastes norvegicus and S. viviparous</i>) fishery. Results showed that there was no significant difference in size selectivity between the codends at lengths greater ...

    • Comparing the size selectivity of a novel T90 mesh codend to two conventional codends in the northern shrimp (Pandalus borealis) trawl fishery 

      Einarsson, Haraldur Arnar; Cheng, Zhaohai; Bayse, Shannon; Herrmann, Bent; Winger, Paul (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-28)
      The size selectivity and usability of three codends were quantified and compared for the first time in the inshore Northern shrimp (<i>Pandalus borealis</i>) trawl fishery of Iceland using the covered codend method: a conventional diamond-mesh codend (T0), conventional square-mesh codend (T45), and a 90° turned mesh codend (T90) constructed of four panels and with shortened lastridge ropes. Fishers, ...

    • Reducing catch efficiency of rabbitfish (Siganus oramin) in a shrimp beam trawl fishery of the South China Sea 

      Yang, Bingzhong; Herrmann, Bent; Cheng, Zhaohai (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-07)
      The bycatch of unwanted fish species is a main concern in shrimp beam trawl fishery of the South China Sea. This study evaluated the effect of using combined square-mesh and diamond-mesh codends (CSDM codends) on catch efficiency of a shrimp trawl fishery with the catch comparison and catch ratio approach. The trouser trawl method was applied using the commercial 22-mm diamond mesh codend (D22) as ...