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dc.contributor.authorKahraman, Abdullah Ekrem
dc.contributor.authorUzer, Uğur
dc.contributor.authorYemişken, Emre
dc.contributor.authorÇanak, Özgür
dc.contributor.authorKarakulak, Firdes Saadet
dc.contributor.authorYıldız, Taner
dc.date.accessioned2022-02-18T10:30:40Z
dc.date.available2022-02-18T10:30:40Z
dc.identifier.citationYıldız T., Uzer U., Yemişken E., Karakulak F. S. , Kahraman A. E. , Çanak Ö., "Conserve immatures and rebound the potential: stock status and reproduction of whiting (Merlangius merlangus [Linnaeus, 1758]) in the Western Black Sea", Marine Biology Research, cilt.18, ss.1-13, 2022
dc.identifier.issn1745-1000
dc.identifier.othervv_1032021
dc.identifier.otherav_a28b1083-3172-4a6e-99fe-02880448d51a
dc.identifier.urihttp://hdl.handle.net/20.500.12627/179384
dc.identifier.urihttps://avesis.istanbul.edu.tr/api/publication/a28b1083-3172-4a6e-99fe-02880448d51a/file
dc.identifier.urihttps://doi.org/10.1080/17451000.2021.2019787
dc.description.abstractThe stock structure and productivity components (growth, maturity and mortality) of the Black Sea whitingMerlangius merlanguswere studied in the western Black Sea for a year. The results aim to improve fisheries management of whiting in the Black Sea. Fresh samples were collected from commercial bottom trawlers between October 2017 and September 2018. Using monthly length-frequency data set for the growth trajectories, a bootstrapped procedure was employed to improve parameter optimization. Duration and timing of the spawning season and size at sexual maturity were modelled using generalized additive models (GAMs). The presence of clear differences in oocyte size groups indicates that oocyte development of Black Sea whiting is a ‘group synchronous’ ovarian developmental process characterized by continuous reproduction. From the gonadosomatic index values, their spawning activity intensifies especially between October and April, captured also in the time component in the GAM modelling. The length at first maturity was 13.9 cm for females and 12.5 cm for males. The mortality rates, yield per recruit analyses, and length-based indicators suggest that whiting is heavily exploited with alarming signs of overexploitation. Undoubtedly, setting catch limits and re-establishing management plans will be the first two steps to ensure reproductive success and prevent overfishing (F > Fmsy).
dc.language.isoeng
dc.subjectTarım ve Çevre Bilimleri (AGE)
dc.subjectSu Ürünleri Avlama Teknolojileri
dc.subjectSu Ürünleri
dc.subjectTarımsal Bilimler
dc.subjectBALIKÇILIK
dc.subjectBitki ve Hayvan Bilimleri
dc.titleConserve immatures and rebound the potential: stock status and reproduction of whiting (Merlangius merlangus [Linnaeus, 1758]) in the Western Black Sea
dc.typeMakale
dc.relation.journalMarine Biology Research
dc.contributor.departmentİstanbul Üniversitesi , Su Bilimleri Fakültesi , Balıkçılık Ve Su Ürünleri İşleme Teknolojisi Bölümü
dc.identifier.volume18
dc.identifier.startpage1
dc.identifier.endpage13
dc.contributor.firstauthorID3307239


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