Whale
The IWC has designated two whale sanctuaries: the Southern Ocean Whale Sanctuary, and the Indian Ocean Whale Sanctuary. The Southern Ocean whale sanctuary spans and envelopes Antarctica. The Indian Ocean whale sanctuary takes up all of the Indian Ocean south of 55°S. The IWC is a voluntary organization, with no treaty. Any nation may leave as they wish; the IWC cannot enforce any law it makes.
Cryptolepas rhachianecti
"Cryptolepas rhachianecti" is now only known from the northern Pacific Ocean where gray whales are to be found. This whale was present in the northern Atlantic Ocean between the Late Pleistocene and recent times and the barnacle must also have been present as is shown by the fact that fossils of the barnacle have been found on a beach in the Netherlands. This barnacle has been found between January and March for several years in captive beluga whales in San Diego Bay, near a route used by migratory gray whales. The barnacles have evoked a skin reaction in the beluga whales resulting in the eviction of the barnacles which suggests an immune response.