Coral reef fish are extraordinarily diverse, often demonstrating complex social behaviour and apparent pain responses, while their reef habitat faces bleaching, acidification, and destructive fishing practices.
Coral reef fish welfare encompasses both individual harms and systemic habitat degradation. Cyanide fishing causes acute poisoning of target fish and mass mortality of non-target reef inhabitants. Blast fishing causes concussive death or injury to all fish within the blast radius. These are severe welfare harms perpetrated for market supply of ornamental and food fish. Beyond direct killing, coral bleaching from warming water temperatures destroys the structural habitat that reef fish require for shelter, breeding, and foraging. Acidification impairs chemical sensing that fish use for navigation and predator detection. Consumer choices about aquarium fish sourcing and seafood certification directly influence demand for destructive reef fishing practices.