Selectivity of square and hexagonal mesh codends for the deep water rose shrimp, Parapenaeus longirostris (Lucas, 1846) (Decapoda, Penaeidae) in the Aegean Sea

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dc.contributor.authorAydin C.
dc.contributor.authorTosunoglu Z.
dc.date.accessioned2019-10-27T08:36:09Z
dc.date.available2019-10-27T08:36:09Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractThis study aims to assess the selectivity of square and hexagonal mesh codends for the deep water rose shrimp, Parapenaeus longirostris. Experiments were conducted in Kuşadasi Bay and Sigacik Bay, eastern Aegean Sea, between 30 September and 25 October 2007 with a commercial stern trawler. The covered codend technique was used for controlling the escapees and selectivity parameters were estimated by maximum likelihood over a logistic model. The selectivity parameters for individual hauls were estimated using the software CC2000, whereas mean selection curves of the codends were estimated by using Fryer's model, taking into account the between-haul variation using the ECModeller software. The mean fifty percent retention length (L50) values of square and hexagonal mesh codends were estimated as 16.7 mm ± 0.07 and 17.4 mm ± 0.05, respectively. Selection range (SR) values were 6.5 mm ± 0.11 in square and 6.2 mm ± 0.15 in hexagonal mesh codend. Although L50 and SR values of the two different mesh shape codends are close to one another, L50 values of neither codend provides a satisfactory selection, considering the 21 mm length at first maturity (LFM) of this species. However, the hexagonal mesh codend can be used as an alternative for the same mesh size diamond mesh codend in targeted rose shrimp trawl fishery. © 2009 Brill Academic Publishers.en_US
dc.description.sponsorshipIran Neural Technology Research Centre, Iran University of Science and Technology: 2007/B'L/004en_US
dc.description.sponsorshipCette étude a pour but d’évaluer la sélectivité des culs de chalut à maille carrée et à maille hexa-gonale utilisés pour la crevette rose d’eau profonde Parapenaeus longirostris. Des expérimentations ont été menées dans la baie de Kus¸adası et dans la baie de Sıg^acık, à l’est de la mer Égée, entre le 30 septembre et le 25 octobre 2007 avec un chalutier commercial de pêche arrière. La technique du cul de chalut “couvert” a été utilisée pour contrôler les échappées et les paramètres de sélectivité ont été estimés par maximum de vraisemblance à l’aide d’un modèle logistique. Les paramètres de sélectivité pour les filets individuels ont été estimés à l’aide du logiciel CC2000, tandis que les *? This study was supported by the Science and Technology Centre of Ege University (Project no.: 2007/B'L/004). 1? Author for correspondence; e-mail: celalettin.aydin@ege.edu.tr --en_US
dc.identifier.doi10.1163/156854008X363704
dc.identifier.endpage98en_US
dc.identifier.issn0011216X
dc.identifier.issn0011-216Xen_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage89en_US
dc.identifier.urihttps://doi.org/10.1163/156854008X363704
dc.identifier.urihttps://hdl.handle.net/11454/27350
dc.identifier.volume82en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofCrustaceanaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleSelectivity of square and hexagonal mesh codends for the deep water rose shrimp, Parapenaeus longirostris (Lucas, 1846) (Decapoda, Penaeidae) in the Aegean Seaen_US
dc.typeArticleen_US

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