%0 Journal Article
%T Age determination and growth rate of Capoeta trutta in Azad Dam Lake, Kurdistan Province, Iran
%J Caspian Journal of Environmental Sciences
%I University of Guilan
%Z 1735-3033
%A Fazli, H
%A Daryanabard, G
%A Naderi Jelodar, M
%A Mirzaei, R
%A Hosseinpour, H
%A Taleshian, H.
%A Bagherzadeh, F
%D 2018
%\ 12/01/2018
%V 16
%N 4
%P 395-404
%! Age determination and growth rate of Capoeta trutta in Azad Dam Lake, Kurdistan Province, Iran
%K Growth parameters
%K Condition factor
%K Capoeta trutta
%K Azad Dam
%K Iran
%R 10.22124/cjes.2018.3207
%X A total of 148 specimens of Capoeta trutta caught from Azad Dam Lake, Kurdistan Province, northwest of Iran were examined during 2015-2016 for assessing growth parameters. The total length (TL) and weight (W) of C. trutta ranged from 4.0 to 29.0 cm and 0.9 to 274.0 g, average (± SD) = 19.3 (± 4.0) cm and 80.3 (± 44.7) g, respectively. The length-weight regression was W = 0.0121 × TL2.9317 indicating isometric growth. The sex ratio (M:F) was 1:0.33, differed significantly from the expected 1:1 (P < 0.001). The von Bertalanffy growth parameters were estimated as L∞ = 29.6 mm, K = 0.33 yr-1, t0 = -0.57 yr. The instantaneous coefficient of natural mortality was estimated as 0.58 yr-1. The averaged condition factor (KF) was 1.00 ± 0.11, by significantly differences among seasons (P < 0.001). In the present study, the relative condition factor (Kn) of C. trutta were close to 1 suggesting the well-being condition of the fish in Azad Dam region.
%U https://cjes.guilan.ac.ir/article_3207_54f56a073ca49a36ec082d8fa81b14f0.pdf