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Eco-1065: Canary Current

Source: Wikipedia

The Canary Current is a wind-driven surface current that is part of the North Atlantic Gyre. This eastern boundary current branches south from the North Atlantic Current and flows southwest about as far as Senegal where it turns west and later joins the Atlantic North Equatorial Current. The current is named after the Canary Islands. The archipelago partially blocks the flow of the Canary Current (Gyory, 2007).

This wide and slow moving current is thought to have been exploited in the early Phoenician navigation and settlement along the coast of western Morocco. The ancient Phoenicians not only exploited numerous fisheries within this current zone, but also established a factory at Iles Purpuraires off present day Essaouira for extracting a Tyrian purple dye from a marine gastropod murex species.

The current heavily influences the weather of the Canaries and coastal Morocco, cooling down shoreline temperatures for much of the year and also causing vast deserts on coastlines due to the absence of convection above the cool water. Winds from the vast Saharan Desert to the east may still bring hot temperatures also to coastal areas.


See also

References

  • Ansa-Emmin, M. (1982) Fisheries in the CINECA region. Rapp. P.-v. Reun. Cons. Int. Explor. Mer. 180: 405–422.
  • Barber, R.T. and Smith R.L. (1981) Coastal upwelling ecosystems. pp 31–68. In: A.R. Longhurst (Ed) Analysis of Marine Ecosystems. Academic Press, New York. 741 pp.
  • C.Michael Hogan, Mogador: Promontory Fort, The Megalithic Portal, ed. Andy Burnham, November 2, 2007
  • Canary Current (2002)
  • Huntsman, S.A. and Barber, R.T. (1977) Primary production off northwest Africa: the relationship to wind and nutrient conditions. Deep-Sea Research. 24: 25–33.
  • Joanna Gyory, Arthur J. Mariano, Edward H. Ryan (Retrieved Nov 5, 2007) "The Canary Current" Ocean Surface Currents
  • Mann, K. H., and J. R. N. Lazier. Dynamics of Marine Ecosystems: Biological-physical Interactions in the Oceans. Boston: Blackwell Science, 1996. Print.
  • Minas, H.J., Codispoti, L.A. and Dugdale, R.C. (1982) Nutrients and primary production in the upwelling region off northwest Africa. Rapp. P.-v. Reún. Cons. Int. Explor. Mer. 180: 148–183.
  • William Adams Hance (1975) The Geography of Modern Africa, Columbia University Press, ISBN 0-231-03869-0

External links