Atlantic Ocean as the mid-19th century. During the Age of Discovery, the Atlantic was also known to English cartographers as the Great Western Ocean. The International Hydrographic Organization (IHO) defined the limits of the oceans and seas in 1953, but some of these definitions have been revised since then and some are not used by various authorities, institutions, and countries, see for example the CIA World Factbook. Correspondingly, the extent and number of oceans and seas varies. The Atlantic Ocean is bounded on the west by North and South America. It connects to the Arctic Ocean through the Denmark Strait, Greenland Sea,
Clean Seas from mining company Centrex Metals to export iron ore from Port Lincoln. Centrex Metals' iron ore mining and export plans did not eventuate. Hagen Stehr, the founder of Clean Seas, stepped down from his position as Chairman of Clean Seas Tuna in 2009. At the time, he said that the company was transitioning from a research and development company to commercialisation. The company reported a $12 million loss in 2009. In September 2010, the "Sydney Morning Herald" reported that Clean Seas staff killed 80 tonnes of stock as a result of human error while "bathing" the fish in hydrogen peroxide.