Ecosystem Reference
Ecosystem Humboldt Current
Type Sea/Bay/Gulf
Salinity saltwater
Other Names
Location
LME SAU No 13. From northern Peru to around Fireland. LME2002, LME2006, SAU 2008. 4° S 54° S - 90° W 71° W
Location Map humboldt-current.jpg
Size Ref
River Length Area 2557713 km2 Drainage Area
Depth
Average Depth Max Depth Ref
Temperature
Surface 18.0 °C Map67.gif
100 Meters Depth 12.0 °C Map68.gif
Description The Humboldt current ecosystem is one of the major upwelling systems of the world. As with other eastern boundary currents, the Humboldt current system is predominantly an equatorward flow of cold, low salinity water with complex flows and counter-flows out to 1,000 km from the Peru-Chile coast. The Chile-Peru Oceanic current is a sluggish (0.04 m/s), wide flow toward the equator that coincides with the boundary of the anticyclonic gyre of the Southeast Pacific. (Robles et al., 1990) Shoreward of the Chile-Peru Oceanic current, the Peruvian Oceanic Countercurrent flows southward at approximately 0.06 m/s. (Wyrtki, 1967) The faster Humboldt Current is closer to the coast, approximately 300-400 km offshore, with velocities at 200 m depth greater than 0.18 m/s. Another southern counterflow occurs at 100 m depth off Peru and 200 m depth off Chile. The Gunther Current is another southern flow occurring at 100 m depth off Peru and 200 m depth off Chile. It is low in oxygen (less than 1 ml/l) and nutrient rich. (Brockman et al., 1980; Robles et al., 1990; Alheit and Bernal, 1993) (http://www.na.nmfs.gov/lme/text/lme13.htm).
Comments on faunal list Area from SAU (November 2015).
URL 1 http://www.seaaroundus.org/lme/13.aspx
URL 2
Ecosystem Checklist Link
Total
FishBase Literature
Species Families Species Families Reference
734 188
Sampang-Reyes, Arlene G. on 01.10.01
Modified by Kesner-Reyes, Kathleen on 07.18.19
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