Sand smelts are small schooling fish harvested in Mediterranean fisheries for local consumption and fishmeal, with welfare considerations around net fishing practices and live-fish market trade.
Sand smelt welfare during commercial capture involves the acute stress of net capture and crowding. As highly active, sensitive fish, capture in beach seines causes extreme crowding stress and physical injury from scale loss and abrasion. Air exposure, even brief, causes rapid physiological deterioration and high mortality in this species. Live fish market trade subjects sand smelts to extreme crowding and oxygen depletion in small containers before sale. The aggregation of individual welfare harms to small fish captured in large numbers means the aggregate welfare impact of sand smelt fisheries is significant despite the species' small size.