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• MakaleAçık Erişim2019/r/munzur/4549
  Age and some growth parameters of Squalius cephalus (Linnaeus, 1758) inhabiting Karasu River (East Anatolia, Turkey)

  Özcan, Ebru Ifakat; Serdar, Osman

  The present study was carried out concerns a research of the age determination and some growth parameters of chub, Squalius cephalus (Linnaeus, 1758) living in 14 different station from Karasu River (East Anatolia, Turkey). For this purpose, a total of 196 fish specimen (100 females and 96 males) of S.cephalus were captured between 2014 and 2016 by electroshocker. Female/male ratio was 1/0.96. Minimum-maximum length and weight of captured fishes were determined as 7.6-23.9 cm and 4.8-198.2 g, respectively. The age groups were determined between 0 and 6. The parameters of von Bertalanffy growth function estimated as L-infinity=31.98 cm, k=0.136 year(-1), t(0)=-1.40 year for all individuals. The growth performance index (phi>) value was computed as 2.143. The length and weight relationships W=0.0060L(3.27) (R-2=0.98) for all individuals. Significant statistical differences in condition factors between age groups and sexes were not found (P > 0.05, t-test).

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