Atlantic, Indian and Pacific: between 20°N and 20°S but extensions into higher latitudes in western boundary currents (Gulf Stream to 43°N; Brazil to 36°S; Agulhas to 39°S; Kuroshio to 34°N)
Definition: The bathypelagic zone biome comprises the marine water column below approximately 1000 m water depth - the maximum depth to which detectable daylight penetrates in all but the clearest oligotrophic waters - and extends to about 2500 - 2700 m water depth. In the temperate Atlantic, the beginning of the bathypelagic zone biome approximates to the deep oxygen minimum and the base of the permanent thermocline.
