Population structure and some growth properties of chub Squalius cephalus (Linnaeus, 1758) in Devres Stream of Kizilirmak River, Turkey

BENZER S., GÜL A.

JOURNAL OF FISHERIES, cilt.5, sa.3, ss.513-518, 2017 (ESCI) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 5 Sayı: 3
  • Basım Tarihi: 2017
  • Doi Numarası: 10.17017/jfish.v5i3.2017.247
  • Dergi Adı: JOURNAL OF FISHERIES
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI)
  • Sayfa Sayıları: ss.513-518
  • Gazi Üniversitesi Adresli: Evet

Özet

This study describes the population structure, growth and condition factor of chub (Squalius cephalus) in Devres Stream of Kizilirmak River caught between June 2010 and June 2011. S. cephalus individuals ranging between I and VI years old were caught from Devres Stream. Studied individuals were between I and VI years old and their sex was determined as 51.67% male and 48.33% female. The fork length and body weight ranged from 8.79 - 19.64 cm and 9.73 - 126.60 g respectively. The von Bertalanffy growth equations were found: L-t = 27.163 [1 - e(-0.159) ((t+1.47))] for females and L-t = 27.078[1 - e (-0.160) ((t+1.46))] for males; W-t = 286.14 [1 - e(-0.159) ((t+1.47))] 3.1049 for females and W-t = 284.43 [1 - e(-0.160) ((t+1.46))] 2.9692 for males. The condition factor was calculated as 1.432 and 1.378 for females and males respectively.