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Breeding Assessment of SCHIZOTHORAX PLAGIOSTOMUS in River Indus, District Kohistan, Northern Pakistan
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In this study, the relationship of total body length (TBL) and total body weight (TBW), Fulton’s condition factor (FCF), gonado somatic index (GSI) and absolute fecundity were determined in snow trout (Schizothorax plagiostomus) from river Indus at district Kohistan, Northern Pakistan. A total of 540 matured specimens (male=277, female= 263) were collected between January and December 2016 by using a gill net. A curvilinear relationship of fecundity and GSI with TBL and TBW were investigated by the quadratic model fit. The study revealed the fact that S. plagiostomus spawned twice in a year, during spring and autumn. The growth coefficient b value and mean condition factor were estimated at 3.42 and 1.75 in both sexes respectively. The GSI in males and females was found 4.4% and 10.96% respectively. In females mean absolute fecundity was 4578.16 eggs. The present study has significance in providing baseline information for the management and conservation of this species of economic importance through captivity breeding.
University of Sindh Jamshoro
Title: Breeding Assessment of SCHIZOTHORAX PLAGIOSTOMUS in River Indus, District Kohistan, Northern Pakistan
Description:
In this study, the relationship of total body length (TBL) and total body weight (TBW), Fulton’s condition factor (FCF), gonado somatic index (GSI) and absolute fecundity were determined in snow trout (Schizothorax plagiostomus) from river Indus at district Kohistan, Northern Pakistan.
A total of 540 matured specimens (male=277, female= 263) were collected between January and December 2016 by using a gill net.
A curvilinear relationship of fecundity and GSI with TBL and TBW were investigated by the quadratic model fit.
The study revealed the fact that S.
plagiostomus spawned twice in a year, during spring and autumn.
The growth coefficient b value and mean condition factor were estimated at 3.
42 and 1.
75 in both sexes respectively.
The GSI in males and females was found 4.
4% and 10.
96% respectively.
In females mean absolute fecundity was 4578.
16 eggs.
The present study has significance in providing baseline information for the management and conservation of this species of economic importance through captivity breeding.
.
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