Waste from fish farms affects local water quality, wild animal welfare, and ecosystem health. Understanding best management practices helps consumers and advocates evaluate aquaculture systems.
Aquaculture waste affects wild animal welfare through oxygen depletion, habitat destruction, and toxic algal blooms. Fish and invertebrates in depleted water zones experience hypoxic stress and death. Improved waste management through fallowing, siting, and RAS technology reduces these impacts but requires regulatory enforcement. The welfare of wild animals in farm vicinities is a legitimate concern alongside human and farmed animal welfare.