Age, growth and mortality of Garfish, Belone euxini Günther, 1866 in the Central Black Sea, Turkey

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dc.contributor.authorCeyhan T.
dc.contributor.authorSamsun O.
dc.contributor.authorAkyol O.
dc.date.accessioned2019-10-27T08:01:11Z
dc.date.available2019-10-27T08:01:11Z
dc.date.issued2019
dc.departmentEge Üniversitesien_US
dc.description.abstractA total of 986 garfish were collected from commercial fisheries, using encircling nets between October 2016 and December 2017 in Sinop, Central Black Sea. The length and weight distribution of all garfish samples ranged from 28.8 to 51.6 cm TL and from 26.6 to 177.2 g, respectively. Female: male ratio was 0.3:1. The LWR parameters (a, b, r 2 ) were computed as 0.0009 ± 0.50, 3.040 ± 0.32 and 0.902 ±0.40, respectively. The age of garfish was between 1 and 4 years. The estimated von Bertalanffy growth parameters with standard errors were L ? = 55.74 ±26.75 cm, K= 0.28 ±0.42, and t 0 =-1.68 ±2.02. Natural, fishing and total mortality of the garfish were 0.47, 0.69 and 1.16, respectively. The current study revealed that about 68% of the fish caught were of size smaller than the first maturity length. In addition, exploitation rate was found to be higher than optimum. On the other words, there is a fishing pressure on the garfish stock in the Black Sea due to absence of minimum landing size (MLS) of the garfish. Apart from direct fishing control measures aiming to reduce fishing mortality, the establishment of a MLS of 38cm that coincides with the length at first maturity would be also beneficial for the stock. Our results suggest that the garfish stock undergoes high levels of fishing pressure and the adoption of management measures is necessary. Copyright 2019 Zoological Society of Pakistan.en_US
dc.identifier.doi10.17582/journal.pjz/2019.51.1.273.278
dc.identifier.endpage278en_US
dc.identifier.issn0030-9923
dc.identifier.issn0030-9923en_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage273en_US
dc.identifier.urihttps://doi.org/10.17582/journal.pjz/2019.51.1.273.278
dc.identifier.urihttps://hdl.handle.net/11454/24928
dc.identifier.volume51en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherUniversity of Punjab (new Campus)en_US
dc.relation.ispartofPakistan Journal of Zoologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBelone euxinien_US
dc.subjectGarfishen_US
dc.subjectMinimum landing sizeen_US
dc.titleAge, growth and mortality of Garfish, Belone euxini Günther, 1866 in the Central Black Sea, Turkeyen_US
dc.typeArticleen_US

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