The canaries current are assembly from the north marine currents of the Atlantic Ocean; this great marine system is constituted by the current of the Caribbean, the Equatorial current, Gulf Stream, the current of Portugal, and finally joining the current of the Canaries.

The current in the Canaries is a continuation of the current of Portugal, (current south, along it to cost Portuguese with an intensity of two daily miles in winter and three in summer). It begins being directed sensitively toward the South since the height of Tip San Vicente to White Tip in the Sahara. It goes inclining toward the SSW, and from Tip Juby to the SW, with a velocity that can arrive at times to two knots when Blow winds of the N and NE well begun, but by I finish middle is of 0.5 knots. This current is cold (18º in full summer), since proceeds of more northern latitude and been nourished, in part, of the ascents of deep water that are produced along the coast of Morocco. It is responsible for smoothing out the climate that to first instance would correspond to canaries according to the latitude that occupies.

The maritime front is of approximately 500 Km. upon being introduced in the archipelago and due to the effect barrier, an increment of its velocity in the water is produced. In the coastal stripe takes place the phenomenon called up-welling. This consists of the ascent of the cold waters of the crosscurrent of Canaries and the displacement of the superficial water. These water, deep and cold, questions are characterized among others by being very rich in nutrients. This carries prepared an increase of the production of Phytoplankton and consistently a greater presence of other marine species. The major outcropping is produced between 23 and 25 degrees of north latitude. The superficial current due to the outcropping flows from this to west; Its influence as soon as upon contributing of nutrients is more notable in the oriental coasts of the Islands, nevertheless, as for temperature and salinity, a gradient since the oriental islands toward the westerners is created. This extensive and slow movement is believed that has been exploited in the antiquity in the first settlements and Phoenician navigations along the western coast of Morocco. The old Phoenicians did not only exploit numerous fisheries in this zone, but also they established a factory in the Islands of the Purple, today Essauira, to obtain a purple colour of a marine gastropod of the species Murex.