The use of live fish and invertebrates as bait in angling raises significant welfare questions about animals used as tools for catching others.
Live baiting subjects fish to acute welfare harm: the hooking procedure causes pain; confinement in a bait bucket causes stress; and the process of being pursued and consumed by a predator causes extreme fear and injury. The welfare cost is paid by the bait fish and is entirely avoidable — artificial lures are effective substitutes for most applications. The welfare case against live baiting is strong under any reasonable assessment of fish sentience, and the legal bans in several European countries reflect this consensus.