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.
Whale barnacle
"C. diadema" inhabits mainly the humpback whale ("Megaptera novaengliae"), but also the southern right whale ("E. australis"), the blue whale ("Balaenoptera musculus"), the fin whale ("B. physalus"), the sperm whale ("Physeter macrocephalus"), and the northern bottlenose whale ("Hyperoodon ampullatus"). "C. reginae" inhabits the humpback whale, blue whale, fin whale, sei whale ("B. borealis"), the common minke whale ("B. acutorostrata"), and the loggerhead sea turtle ("Caretta caretta"). "Cetopirus" inhabits exclusively the southern right whale. "Cryptolepas" almost exclusively inhabits the gray whale, but has been recorded on the killer whale, the beluga whale, and in the stomach of the topsmelt silverside ("Atherinops affinis"). Topsmelt are known to pick off the dead skin and whale lice often found in association with barnacles. "T. major" has been recorded on the southern right whale.