Freshwater invertebrates including mayflies, stoneflies, and freshwater mussels are vital ecosystem components. Their welfare capacity and conservation importance deserve greater recognition.
Freshwater invertebrate welfare sits at the intersection of welfare science and conservation biology. While the capacity for conscious suffering in most invertebrate groups is scientifically uncertain, their ecological importance is indisputable. Loss of freshwater macroinvertebrate communities cascades through food webs affecting fish, birds, bats, and otters that depend on invertebrate prey. Invertebrate communities sensitive to pollution serve as reliable water quality indicators - their abundance and diversity directly reflects ecosystem health. Protecting freshwater invertebrates through water quality improvement, habitat restoration, and appropriate river management benefits vast numbers of animals throughout aquatic food chains.