EFFECTS OF MESH CONFIGURATION ON THE SELECTIVITY OF DEMERSAL TRAWL CODENDS FOR NEPHROPS NORVEGICUS (LINNAEUS, 1758) (DECAPODA, NEPHROPHIDAE)

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dc.contributor.authorKaykac, Hakan
dc.contributor.authorOzbilgin, Hueseyin
dc.contributor.authorTokac, Adnan
dc.date.accessioned2019-10-27T20:20:07Z
dc.date.available2019-10-27T20:20:07Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractIn the present study, we have compared the selectivity of a diamond mesh codend (40D), currently used by Turkish trawl fishermen, and a square mesh codend (40S), which is in the legislation for EU Mediterranean countries (EC 1967/2006). Trawling was carried out onboard the commercial trawler "Niyazi Reis" in the international waters between Turkey and Greece, at depths ranging from 158 to 264 m, in August 2005. Selectivity data were obtained by using the covered codend technique. Selection parameters were estimated by fitting a logistic equation using the maximum likelihood method. Nephrops norvegicus escaped from the codends with retention ratios of 0.98 and 0.91 for 40D and 40S codends, respectively. The selection curves of the two codends are found to be significantly different (p < 0.01). For combined sexes, L(50) values of 16.03 (s.e. 0.41) and 19.38 mm (s.e. 0.51) were estimated in 40D and 40S codends, respectively. The results of this study clearly demonstrate that N. norvegicus took advantage of the increase in escape area provided by the change in mesh configuration from diamond to square.en_US
dc.description.sponsorshipCommission of the European UnionEuropean Union (EU) [NECESSITY/501605]en_US
dc.description.sponsorshipThe authors would like to thank the captain and crew of the commercial trawler "Niyazi Reis". Thanks are also due to Dr. C. Aydin, Dr. G. Gokce, S. Leblebici, I. Aydin, and O. Soykan for participating the sea trials. This study was financed by the Commission of the European Union (NECESSITY/501605).en_US
dc.identifier.doi10.1163/001121609X12487811051705
dc.identifier.endpage1578en_US
dc.identifier.issn0011-216X
dc.identifier.issn0011-216Xen_US
dc.identifier.issue12en_US
dc.identifier.startpage1569en_US
dc.identifier.urihttps://doi.org/10.1163/001121609X12487811051705
dc.identifier.urihttps://hdl.handle.net/11454/41572
dc.identifier.volume82en_US
dc.identifier.wosWOS:000272203600007en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherBrill Academic Publishersen_US
dc.relation.ispartofCrustaceanaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleEFFECTS OF MESH CONFIGURATION ON THE SELECTIVITY OF DEMERSAL TRAWL CODENDS FOR NEPHROPS NORVEGICUS (LINNAEUS, 1758) (DECAPODA, NEPHROPHIDAE)en_US
dc.typeArticleen_US

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