What is the symbiotic relationship for a walrus?

Walruses often engage in a commensal symbiotic relationship with certain species of barnacles and algae that attach to their skin. While the barnacles benefit by gaining a substrate to live on, the walrus is largely unaffected and does not gain any direct benefit or suffer any harm from their presence. Additionally, walruses can also be seen as a host for microorganisms, which can play a role in their skin health. Overall, these interactions highlight the complexity of relationships in marine ecosystems.