Harp seals are piscivores and consume large amounts of fish and crustaceans in their environment. Harp seals are also food for many predators in the Arctic region.
Harp seals are carriers of the Phocine distemper virus (PDV). PDV does not have any affect on harp seals, but they may have passed the virus onto harbor seals, ignighting a huge epidemic in Europe in 1988.
- Phocine distemper virus