Length-weight relationship and condition factor of Capoeta razii in Zav River, Golestan National Park
Document Type : Original Article
Authors
Department of fisheris, Faculty of of Natural Resources, Department of Fisheries, , University of Gonbad Kavous, Gonbad Kavous
Abstract
This study was carried out to the evaluated growth pattern of Capoeta razii with 182 fish samples that obtained from January to March 2016 with Electrofishing. The sex ratio of male to female was 1.53:1, it means male and female has the same ratio in the population (X2=3.568, P>0.05). The maximum total length and weight were 198 mm and 120.53 gr for females, 187 mm 83.87 gr for males. The length-weight relationship (LWR) of female was W = 0.0103 TL3.07 (r2=0.99) and the LWR of male was W=0.01 TL3.09 (r2=0.99) and the total LWR was W= 0.0101 TL3.09 (r2=0.99). The results showed positive allometric growth for population and Male, Isomeric growth for Female (t-test, tmale=8.62, tfemale =8.02, tpopulation=10.93, P>0.05). The condition factor was estimated 1.01 ± 0.13 in male and 1.10±0.17 in female and the total condition factor was 1.02±0.12.
Keywords
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