Sprats are small pelagic fish caught in enormous quantities for fishmeal, fish oil, and human consumption, with welfare considerations across their capture and processing methods.
Sprat welfare during pelagic capture involves the extreme crowding of fish in purse seine nets and trawls before pumping aboard. The compression of schooling fish in the net causes crushing injuries and oxygen depletion as fish respiration removes oxygen from enclosed water. Pumping live fish aboard processing vessels involves passage through mechanical equipment that causes physical injury. Processing without pre-slaughter stunning means fish are slaughtered by methods including crushing and asphyxiation that cause pain. The enormous scale of sprat fisheries means the aggregate welfare impact is significant, despite the small size of individual fish.