The live fish transport industry moves billions of fish annually for ornamental and food markets; welfare conditions vary enormously.
Fish during transport experience oxygen depletion, ammonia accumulation, temperature stress, and the physical trauma of confinement in reduced water volumes. Mortality rates in the ornamental fish trade can reach 20-30% between collection and retail sale. Sedation with clove oil dramatically reduces stress and mortality but adds cost that suppliers avoid. Each fish that dies in transit experienced preventable suffering.