The conservation crisis facing wild sturgeon and the welfare considerations of aquaculture caviar production.
Sturgeon welfare in aquaculture encompasses the long time period from juvenile to reproductive maturity that these animals spend in farming systems. Their slow growth and late maturity mean welfare standards must be maintained for extended periods. Traditional caviar extraction requires killing the female, while newer techniques using hormone-induced ovulation allow repeated egg collection without mortality. The welfare implications of these methods differ significantly, with non-lethal extraction avoiding the killing stress while potentially causing hormonal manipulation welfare concerns. Wild sturgeon conservation is the most urgent priority given the critical endangerment of most species; aquaculture that reduces wild harvest pressure while maintaining adequate welfare standards serves both conservation and welfare goals.