Investigation of Reproductive Index of Hemiculter leucisculus (Basilewsky, 1855) in Gorganrood river

Document Type : scientific research article

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Abstract

This study was conducted to determine the reproduction features of Hemiculter leucisculus in Gorganrod river. The total of 36 fish samples Hemiculter leucisculus were preyed from April to July 2013 using Electeroshocker randomly and fixed by 10% formalin. The maximum gonadosomatic index in July was observed for both sexes, the amount of which was for males and females respectively, (2.56) and (10.71). Minimum, maximum and absolute fecundity mean were 4020, 36100 and 21006.13 and for relative fecundity were 2020.91, 10399.16 and 4629.13 respectively. Mean Egg diameter of egg was 0.26 mm and its variable between 0.1 to 0.57 mm. The results showed an increase in total length and weight, absolute fecundity increased, as well as in males than in females was Gonadosomatic index.

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