Title of article
Study on the growth parameters of Capoeta trutta (Heckel, 1843) in Shour River, Iran
Author/Authors
Taghavi Niya, M Young Research and Elite Club - Ahvaz Branch - Islamic Azad University , Javaheri Baboli, M Department of Fisheries - College of Agriculture Science and Natural Resources , Roomiani, L Department of Fisheries - College of Agriculture Science and Natural Resources - Khouzestan Science and Research Branch - Islamic Azad University , Pazira, A Department of Fisheries - College of Agricultural Science and Natural Resources - Bushehr Branch - Islamic Azad University , Lakzaie, F Iranian Fisheries Science Research Institute - Agricultural Research - Education and Extension Organization
Pages
13
From page
262
To page
274
Abstract
In this study growth characteristics of 815 tuwini (Capoeta trutta) in Shour River were investigated during July 2010 through June 2011. The population was composed of 62.94% females and 32.02% males. Sex ratio was 1: 1.96, with significant differences observed at 1:1 (x2= 150.6 df= 1 p<0.05). The age distribution of this population ranged from <1 to 6 years. The distribution of length and weight was between 95 and 300 mm. The average length, except in <1 year olds, was statistically significant between sexes and average weight in all age groups was statistically significant between sexes (p<0.05). Weight-length relationship was determined as W=0.0115L2.9475 (R=0.91) in males and W=0.0096L3.0025 (R= 0.88) in females. Von-Bertalanffy growth equation was Lt= 24.5(1-e -0.333(t+2.54)) for males and Lt= 36.4 (1- e -0.129(t+4.02)) for females. Growth performance index was also estimated as Φ=2.301 in males and Φ=2.223 in females.
Keywords
Capoeta trutta , Growth parameters , Shour river , Iran
Journal title
Iranian Journal of Fisheries Sciences
Serial Year
2015
Record number
2507924
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