Coral reef restoration programs aim to rebuild degraded marine ecosystems, with significant welfare implications for the fish, invertebrates, and other species that depend on reefs.
Reef restoration affects animal welfare at ecosystem scale. Degraded reefs leave fish and invertebrates without shelter, feeding habitat, and breeding sites — producing chronic stress and population decline. Restoration interventions create new habitat but may disturb resident animals during construction. Heat stress from bleaching events causes suffering across hundreds of species simultaneously. Supporting reef restoration is one of the highest-leverage welfare actions for marine animals, given the scale of species supported.