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Paper Information

Journal:   IRANIAN SCIENTIFIC FISHERIES JOURNAL   SPRING 2011 , Volume 20 , Number 1 (74); Page(s) 165 To 170.
 
Paper: 

EVALUATION OF STOCKING DENSITY ON WATER QUALITY PARAMETERS IN REARING OF BELUGA (HUSO HUSO)

 
 
Author(s):  RAFATNEZHAD S., FALAHATKAR B.*
 
* FACULTY OF NATURAL RESOURCES, UNIVERSITY OF GUILAN, SOWMEH SARA, IRAN
 
Abstract: 

The potential effects of stocking densities (1, 2, 4, 6 and 8kg/m-2) of Beluga (Huso huso) was investigated on water quality and growth factors of the fish. Feed was offered three times daily using a commercial diet to the juvenile fish at the average initial weight of 93.13±1.04g (±SE) for a period of 8 weeks. The final biomass was 4.0, 6.5, 11.0, 14.5, 17.1kg/m-2 from the lowest to the highest densities, respectively. At the termination of the experiment, the mean weight reached 362.4±6.9, 319.7±2.1, 267±9.2, 242.1±6.2 and 211.1±4.1 in densities of 1 to 8kg/m-2, respectively. Results of the present study showed that growth parameters, including: Final weight (W), body weight daily (BWD), weight gain (WG), condition factor (CF) and feed efficiency (FE) had significant differences among the treatments (P<0.05). Water quality indices including nitrite (N02), ammonia (NH3), nitrate (N03) and dissolved oxygen (DO) showed significant differences among the treatments affected by different densities, while other water quality parameters including temperature and pH showed no significant difference (P>0.05). Results showed that stocking densities have major effects on water quality and growth indices of Beluga juveniles.

 
Keyword(s): DENSITY, WATER QUALITY, GROWTH, STURGEON
 
 
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APA: Copy

RAFATNEZHAD, S., & FALAHATKAR, B. (2011). EVALUATION OF STOCKING DENSITY ON WATER QUALITY PARAMETERS IN REARING OF BELUGA (HUSO HUSO). IRANIAN SCIENTIFIC FISHERIES JOURNAL, 20(1 (74)), 165-170. https://www.sid.ir/en/journal/ViewPaper.aspx?id=277101



Vancouver: Copy

RAFATNEZHAD S., FALAHATKAR B.. EVALUATION OF STOCKING DENSITY ON WATER QUALITY PARAMETERS IN REARING OF BELUGA (HUSO HUSO). IRANIAN SCIENTIFIC FISHERIES JOURNAL. 2011 [cited 2021July27];20(1 (74)):165-170. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=277101



IEEE: Copy

RAFATNEZHAD, S., FALAHATKAR, B., 2011. EVALUATION OF STOCKING DENSITY ON WATER QUALITY PARAMETERS IN REARING OF BELUGA (HUSO HUSO). IRANIAN SCIENTIFIC FISHERIES JOURNAL, [online] 20(1 (74)), pp.165-170. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=277101.



 
 
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