Understanding the size selectivity of red mullet (Mullus barbatus) in Mediterranean trawl codends: A study based on fish morphology

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dc.contributor.authorTokac, Adnan
dc.contributor.authorHerrmann, Bent
dc.contributor.authorGokce, Gokhan
dc.contributor.authorKrag, Ludvig A.
dc.contributor.authorNezhad, Davod S.
dc.contributor.authorLok, Altan
dc.contributor.authorKaykac, Hakan
dc.contributor.authorAydin, Celalettin
dc.contributor.authorUlas, Ali
dc.date.accessioned2019-10-27T23:11:44Z
dc.date.available2019-10-27T23:11:44Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description.abstractRed mullet (Mullus barbatus) is one of the most important commercial species for the multi-species Mediterranean demersal trawl fisheries. Several experimental studies have been carried out to assess the codend size selectivity for red mullet in the last two decades. However, while the number of experiment-based selectivity studies on red mullet are considerable, very little theoretical work exists which tries to understand and explain the size selectivity for this species in trawl codends. Therefore the main objective of this study was to establish a theoretical framework to explain and predict the size selection of red mullet in bottom trawl codends of different mesh size and configuration. We identified the important morphological characteristics of red mullet which determine the size selection in towed fishing gears using the FISHSELECT methodology and further used this methodology to predict size selection for a wide range of mesh configurations through simulations. For example we predicted the 50% retention length for red mullet to be in the range 9.2-15.8 cm for the legal 50 mm mesh size diamond mesh codend and in the range 10.6-14.2 cm for the legal 40 mm mesh size square mesh codend. The simulated size selection was found to agree well with previously published results for codend size selection of red mullet obtained from sea trials. Thus based on fish morphology we were able to understand and explain previous results leading to a better understanding of the codend size selection for this species. Further the morphologically based results enable predictions of size selection of red mullet in codend designs not previously tested experimentally. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [111O492]en_US
dc.description.sponsorshipThe research documented in this paper was conducted as part of the TUBITAK Project No: 111O492 supported by The Scientific and Technical Research Council of Turkey (TUBITAK). We would like to thank the crew members of the R/V "EGESUF" for their help during the sea trials. We are in debt to Dr. R.S.T. Ferro for his great help in revision of the manuscript. Our thanks also go to the Editor and two anonymous reviewers who during the review process helped to improve the paper considerable.en_US
dc.identifier.doi10.1016/j.fishres.2015.09.002
dc.identifier.endpage93en_US
dc.identifier.issn0165-7836
dc.identifier.issn1872-6763
dc.identifier.issn0165-7836en_US
dc.identifier.issn1872-6763en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage81en_US
dc.identifier.urihttps://doi.org/10.1016/j.fishres.2015.09.002
dc.identifier.urihttps://hdl.handle.net/11454/53120
dc.identifier.volume174en_US
dc.identifier.wosWOS:000367700000009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofFisheries Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCodend size selectivityen_US
dc.subjectFish morphologyen_US
dc.subjectFisheries managementen_US
dc.subjectFISHSELECT methodologyen_US
dc.subjectMediterranean fisheriesen_US
dc.subjectRed mullet (Mullus barbatus)en_US
dc.titleUnderstanding the size selectivity of red mullet (Mullus barbatus) in Mediterranean trawl codends: A study based on fish morphologyen_US
dc.typeArticleen_US

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