Blar i forfatter "Basterretxea, Mikel"
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Escape of hake (Merluccius merluccius), horse mackerel (Trachurus trachurus) and blue whiting (Micromesistius poutassou) in codends with shortened lastridge ropes
Cuende, Elsa; Sistiaga, Manu; Herrmann, Bent; Basterretxea, Mikel; Arregi, Luis (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-02)Diamond meshes in trawl codends have limited openness, which reduces escape opportunities for roundfish. Shortening the lastridge ropes (LR) attached to codend selvedges can increase the availability of open meshes resulting in higher chances of escape. However, this availability does not imply optimal mesh openness, nor does it guarantee use. We estimate the escape probability of hake, horse mackerel ... -
Release efficiency and selectivity of four different square mesh panel configurations in the Basque mixed bottom trawl fishery
Cuende, Elsa; Arregi, Luis; Herrmann, Bent; Sistiaga, Manu Berrondo; Basterretxea, Mikel (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-28)Reduction of discards from the Basque mixed bottom trawl fishery is a challenge. To improve the selective properties of the gear used by the fleet and supplement codend size selection, a square mesh panel (SMP) installed in the upper panel of the trawl was introduced in 2006. However, recent studies have shown that the release efficiency of this SMP is low due to lack of contact between the fish and ...