Wild sturgeon are critically endangered from overfishing for caviar. Aquaculture-based caviar production raises welfare questions while potentially relieving pressure on wild populations.
Sturgeon welfare in aquaculture raises complex questions. The animals live for decades in captive systems, making welfare quality over that entire period significant. Non-lethal caviar extraction is a welfare advance over killing fish at harvest, but requires repeated hormonal intervention that itself has welfare implications. The conservation argument for aquaculture-based caviar — reducing pressure on wild critically endangered populations — is compelling, but does not justify poor individual welfare in farm settings. The best producers combine conservation benefit with genuine welfare investment.