Recirculation aquaculture system (RAS)
Sturgeon is mainly farmed for the quality caviar and meat. The farming of sturgeon in [recirculation systems] (RAS) is not done at a large scale yet, but sturgeon is often grown in the first life stages in RAS. The advantage of farming sturgeon in RAS is that there are little to no negative effects on the environment.
The feed in farmed fish is often not sustainable because it consists of ingredients that are not sustainably caught or produced. There are however steps taken by the industry to make the feed more sustainable by decreasing the ratio of fish meal and fish oil.
Caviar and sturgeon meat are on the CITES trade list. These are products that are allowed to be traded only under heavy regulation, like special certificates. Regulation for farms differs between the producing countries.