Population structures and some growth properties of tench (Tinca tinca L., 1758) in Mogan Lake, Ankara, Turkey


BENZER S.

ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI, vol.61, no.4, pp.261-266, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.1501/vetfak_0000002640
  • Title of Journal : ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI
  • Page Numbers: pp.261-266

Abstract

The present study was carried out to assess the population structure, growth and condition factor of tench, between June 2012 and June 2013, in Mogan Lake. The age of T. tinca caught from Mogan Lake ranged between I to VII years. The sex percentage was determined as 50 % males, 42.92 % females and 7.08 % immature. Fork length of fish ranged from 9.2 cm to 36.5 cm and body weight of fish ranged from 9.4 g to 740 g. The von Bertalanffy growth equations were: L-t = 412.141 [1 - e(-0.211) ((t+1.82))] for females, L-t = 397.517[1 - e(-0.174 (t+2.89))] for males and L-t = 384,001 [1 - e(-0,235 (t+0,88))] for all individual; W-t = 1247.25 [1 - e(-0.211) ((t+1.82))] (3.1232) for females, W-t = 1208.94 [1 - e(-0.174 (t+2.89))] for males and W-t = 1365,52 [1 - e(-0,235 (t+0,88))] (3,1217) for for all individual. The condition factor was calculated as 1.69, 1.68 and 1.67 for females, males and for all individual, respectively.