BRINGS WARM water from the Gulf of Mexico into the Atlantic Ocean.It extends all the way up the eastern coast of the United States and Canada.The Gulf Stream is caused by a large system of circular currents and POWERFUL winds, called an oceanic gyre.West WINDA current in the southern hemisphere moving from west to east at approximately 40°-55°S, caused by prevailing western cold winds.It encircles the earth, crossing the Atlantic, Indian, and Pacific oceansPeru CurrentPeru Current, also called Humboldt Current, cold-water current of the southeast Pacific Ocean, with a width of about 900 km (550 mi). It is relatively slow and shallow.West Australian Current It is a relatively cold surface current of the southeast Indian Ocean, part of the general counterclockwise movement in the southern section of that ocean.