Study of growth characteristics of Bleak (Alburnus hohenackeri) in Siahrud River, Mazandaran province
Document Type : Original Article
Authors
1 Department of Fisheries, Faculty of natural resource, University of Gonbad Kavous, Gonbad Kavous
2 Department of Marin Biology, Faculty of Basic Sciences, University of Gonbad Kavous, Gonbad Kavous
Abstract
This study was carried out to evaluated growth pattern of Bleak (Alburnus hohenackeri) with 185 fish samples that obtained in February 2013 with Electrofishing devices. Sex ratio of male to female was 1:1.3 that showed no significant difference between sex ration of male and female in population (X2 = 1.95, p < 0.05). Maximum total length and weight were 90.50 mm and 7.26 g for females, 89.09 mm 5.19 g for males. The length-weight relationship of female was W = 0.013 TL2.849 (r2 = 0.96) and the length- weight relationship of male was W = 0.0132 TL2.766 (r2 = 0.95) and the total relationship was W = 0.0118 TL2.871 (r2 = 0.94). The results showed negative allometric growth for this species.
Keywords
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