Age and some growth parameters of Squalius cephalus (Linnaeus, 1758) inhabiting Karasu River (East Anatolia, Turkey)

Ebru İ. Özcan; Osman Serdar

doi:10.12714/egejfas.2019.36.1.03

TR EN

Karasu Nehri’nde (Doğu Anadolu, Türkiye) yaşayan Squalius cephalus (Linnaeus, 1758)’un yaş ve bazı büyüme parametreleri

Öz

Bu çalışma, Karasu Nehri’nin 14 farklı istasyonunda yaşayan tatlısu kefali, Squalius cephalus (Linnaeus, 1758) 'nin yaş tayini ve bazı büyüme özelliklerinin araştırılması ile ilgilidir. Bu amaçla, 2014 ve 2015 yılları arasında elektroşokerle toplam 196 S.cephalus balık örneği (100 dişi ve 96 erkek) yakalandı. Dişi/erkek oranı 1.04/1 idi. Yakalanan balıkların minimum-maksimum uzunluk ve ağırlığı 7,6-23,9 cm ile 4,8-198,2 g olarak belirlendi. Yaş grupları 0-6 idi. von Bertalanffy büyüme parametreleri tüm bireyler için L_∞=31,98 cm, g, k=0,136 yıl-1, t₀=-1,40 yıl olarak hesaplandı. Büyüme performans indeks değeri (Ф') 2,143 olarak hesaplandı. Tüm bireyler için boy ve ağırlık ilişkisi W=0,0060L^3,27 (R²=0,98) dir. Yaş grupları ve cinsiyetler arasındaki kondisyon faktörlerinde farklılıklar istatistiksel olarak anlamlı bulundu (P > 0,05 t-test).

Anahtar Kelimeler

Age and some growth parameters of Squalius cephalus (Linnaeus, 1758) inhabiting Karasu River (East Anatolia, Turkey)

Abstract

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 2015 by electroshocker. Female/male ratio was 1.04/1. 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_∞=31.98 cm, k=0.136 year^-1, t₀=-1.40 year for all individuals. The growth performance index (Ф') value was computed as 2.143. The length and weight relationships W=0.0060L^3.27 (R²=0.98) for all individuals. Significant statistical differences in condition factors between age groups and sexes were not found (P > 0.05, t-test).

Keywords

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

-

Bölüm

Araştırma Makalesi

Yazarlar

Ebru İ. Özcan ^*
Türkiye

Osman Serdar
Türkiye

Yayımlanma Tarihi

15 Mart 2019

Gönderilme Tarihi

7 Ağustos 2018

Kabul Tarihi

18 Ekim 2018

Yayımlandığı Sayı

Yıl 2019 Cilt: 36 Sayı: 1

DOI

https://doi.org/10.12714/egejfas.2019.36.1.03

IZ

https://izlik.org/JA79KS22NZ

Kaynak Göster

RIS / Bibtex

APA

Özcan, E. İ., & Serdar, O. (2019). Age and some growth parameters of Squalius cephalus (Linnaeus, 1758) inhabiting Karasu River (East Anatolia, Turkey). Ege Journal of Fisheries and Aquatic Sciences, 36(1), 25-30. https://doi.org/10.12714/egejfas.2019.36.1.03

Cited By

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https://doi.org/10.35229/jaes.934445