River otter welfare is closely linked to water quality, prey availability, and riparian habitat that provides holts and corridors.
Individual otter welfare is determined by habitat quality, food availability, and freedom from disturbance. Rivers that support thriving otter populations provide abundant fish, undisturbed riparian vegetation for holts, and clean water free from harmful pollutants. Each improvement in river habitat quality translates into improved welfare for the otters that live in it.