Growth and Reproduction of Chub (Squalius cephalus) in Lake Yenicaga, Bolu, Turkey

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KILIÇ S., BECER Z. A.

INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY, cilt.18, sa.2, ss.419-424, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.17957/ijab/15.0106
  • Dergi Adı: INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.419-424
  • Anahtar Kelimeler: Chub, Squalius cephalus, Growth, Reproduction, Lake Yenicaga, LEUCISCUS-CEPHALUS, DAM LAKE, BIOLOGY, L.
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Growth and reproduction of chub population were investigated in Lake Yenicaga, Bolu, Turkey. A total of 729 chub were sampled between March 2009 and July 2010. The age of sampled chub ranged from 1+ to 8+. According to the sex ratios of female and male (2.98: 1.00), female was dominant in this population. For all individuals, von Bertalanffy growth parameters were L infinity = 36.88 cm, W infinity = 713.01 g, k = 0.248, t(0) = -1.278 and b = 3.109. The average condition factor (CF) was 1.48. The lengths at first sexual maturity of female and male chub were 19.2 cm and 15.3 cm respectively. Reproduction period was between the months April to July, egg diameter 1.29 mm and average egg yield were determined to be 25349 unit/individual. The minimum landing size and prohibition season of fishing of chub, which was regulated by the Republic of Turkey Ministry of Food, Agriculture and Livestock were compatible with this study. (C) 2016 Friends Science Publishers