An overview of sturgeon culture in concrete tanks, recirculating aquaculture system, cage and earthen pond

Document Type : Tarvij

Authors

1 International Sturgeon Research Center

2 Fish Nutrient Expertمعاونت پژوهش و فناوری، موسسه بین المللی تاسماهیان دریای خزر

3 International Sturgeon Research Institute.rasht

4 عضو هیات علمی سازمان تحقیقات، آموزش و ترویج کشاورزی

5 expert - International Sturgeon Research Organization of the Caspian Sea

Abstract

Commercial farming of sturgeon in the Iran is about 2 decades old. In order to increase the production of farmed sturgeon fish, along with rearing in concrete tanks (circular and octagonal), improving rearing techniques using recirculating aquaculture system (RAS), cage, pen, earthen pond and natural dams can play an effective role in this field. Great sturgeon (Huso huso) and Siberian sturgeon (A. baerii) are the main rearing species in the Iran. In China, which has the first place in sturgeon culture in the world, meat production is mainly done through the hybrid of male of Amur sturgeon (A. schrenckii) × female of Kaluga sturgeon (H. dauricus), as well as the female of Amur sturgeon × male of Siberian sturgeon. Most of the production of farmed caviar in this country is obtained through the hybrid of native hybrid species, Kaluga sturgeon × Amur sturgeon. In Russia, Siberian sturgeon and Russian sturgeon (A. gueldenstaedtii) and in America, white sturgeon (A. transmontanus) are the main cultivated species. Among the methods used for rearing sturgeons in the world, we can refer to flow-through system, RAS, cage and earthen pond. In Iran, Sturgeon culture in concrete tanks is the main method. At the time of sturgeon culture, it is very important to observe proper density, proper water exchange, proper feeding management, maintaining water quality, and preventing sunlight from directly hitting the rearing tank.

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