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dc.contributor.authorCuende, Elsa
dc.contributor.authorSistiaga, Manu
dc.contributor.authorHerrmann, Bent
dc.contributor.authorBasterretxea, Mikel
dc.contributor.authorArregi, Luis
dc.date.accessioned2022-12-08T09:43:02Z
dc.date.available2022-12-08T09:43:02Z
dc.date.issued2022-09-02
dc.description.abstractDiamond 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 and blue whiting through a 20% shortened LR codend and a standard codend, and quantify the contribution of different mesh opening angles (OAs) to their size selectivity. The results confirm that high OAs increase escape opportunities for all species. However, shortened LR only improved size selectivity significantly for horse mackerel and blue whiting. This difference between species may be related to behavioural differences. The mesh openness achieved with 20% shortened LR was below that necessary to obtain optimal escape opportunities for these species. The study highlights the relevance of considering fish morphology and behaviour to optimally exploit size selectivity when designing shortened LR codends.en_US
dc.descriptionSource at <a href=https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/index>https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/index</a>en_US
dc.identifier.citationCuende, Sistiaga, Herrmann, Basterretxea, Arregi. Escape of hake (Merluccius merluccius), horse mackerel (Trachurus trachurus) and blue whiting (Micromesistius poutassou) in codends with shortened lastridge ropes. Mediterranean Marine Science. 2022;23(4):917-934en_US
dc.identifier.cristinIDFRIDAID 2073745
dc.identifier.doihttps://doi.org/10.12681/mms.31041
dc.identifier.issn1108-393X
dc.identifier.issn1791-6763
dc.identifier.urihttps://hdl.handle.net/10037/27746
dc.language.isoengen_US
dc.publisherNational Documentation Centreen_US
dc.relation.journalMediterranean Marine Science
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by-sa/4.0en_US
dc.rightsAttribution-ShareAlike 4.0 International (CC BY-SA 4.0)en_US
dc.titleEscape of hake (Merluccius merluccius), horse mackerel (Trachurus trachurus) and blue whiting (Micromesistius poutassou) in codends with shortened lastridge ropesen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
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