The investigation and comparison growth indices in Acipenser persicus released to Gorganrud River, in shahid Marjani and Voshmgir Reservoir in 2002

Subject Areas : New Technologies in Aquaculture Development

Received: 2021-01-13 Accepted : 2021-01-13 Published : 2012-11-21

Keywords: Growth indices, Keywords:Acipenserpersicus, ShahidMarjani, VoshmgirReservoir, Gorganroud River,

Abstract :

Abstract In this study, growth indices of Acipenser persicus at the Shahid Marjani (S.M.) Center and Voshmgir Reservoir (V.R.), for releasing purpose in Gorganrud River, was investigated in 2002. The area for cultivating A. persicus at S.M. was 14 ha, the number of cultured A. persicus 1120000 pieces, the number of released was 429930 pieces and survival rate was calculated 38.4%, in 2002. Also, the mentioned parameters for V.R. were 102 ha; the number of cultured was 11135000, the number of released 41795116 and survival rate 37.53%. The length and weight of fingerlings in S.M. were in range 7.2-15 cm, 2.2-12.6 gr and mean weight 4.69±0.69 gr, also in V.R. were in range 6-9.3 cm, 1.08-3.1 gr and mean weight 2.5±0.22 gr. Condition factor and growth rate in S.M. were 0.43±0.02 and 5.31±0.4, respectively, and these parameters were 0.41±0.02 and 5.5±0.4 in V.R. The results of this study showed that condition factor and growth rate of fingerlings revealed no significant variation in S.M and V.R. (P>0.05).