What do otters depend on?

Otters depend on aquatic ecosystems for their survival, relying on clean water bodies such as rivers, lakes, and coastal areas for food and habitat. Their diet primarily consists of fish, crustaceans, mollusks, and small mammals, which they hunt and forage for. Additionally, otters require areas with abundant vegetation for shelter and protection from predators, as well as suitable sites for breeding and raising their young. Overall, they are highly dependent on the health of their environment to thrive.