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Beluga
3
Dissolved oxygen
Ammonia
2
Aquaculture
2
Cultivation
2
Nitrite
2
Pollution
2
Salinity
2
Self purification
2
Caspian Sea
1
Ecology
1
Experimental
1
Feeding frequency
1
Feeding times
1
Fingerlings
1
Food conversion ratio
1
Gorgan Bay
1
Growth
1
Huso huso
1
Iran
1
Nutritional
1
Sturgeon
1
Water velocity
1
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