Beluga sturgeon are critically endangered and increasingly farmed for caviar. Their welfare as large, long-lived fish in intensive aquaculture systems requires specific consideration.
Beluga sturgeon aquaculture welfare presents extraordinary challenges given the species' exceptional size, longevity, and natural life history. Wild beluga migrate thousands of kilometres through river systems - a behaviour completely impossible in captive systems. Growth to commercial size for caviar production requires decades, meaning farms maintain individual fish for 15+ years under captive conditions. Handling very large fish causes significant acute stress. Roe stripping avoids killing but requires repeated invasive procedures. The conservation status of wild beluga means aquaculture provides the only legal source of beluga caviar, but this commercial value must be balanced against welfare obligations for these remarkable long-lived animals.