---

LIght level below which no appreciable photosynthesis can occur (1% light level)

Value	0.415 mol quanta/m^2/day
Organism	Phytoplankton
Reference	Ricardo M. Letelier, David M. Karl, Mark R. Abbott, Robert R. Bidigare, Light Driven Seasonal Patterns of Chlorophyll and Nitrate in the Lower Euphotic Zone of the North Pacific Subtropical Gyre, Limnology and Oceanography, Vol. 49, No. 2 (Mar., 2004), pp. 508-519 p.511 left column bottom paragraph
Comments	The annual average of daily photon flux measured at the 1% light level (0.415 mol quanta m-2 d-1) is located at approximately (at north pacific gyre) 120-m depth during summer (when surface PAR > 47 mol quanta m-2 d-1) and 90-m depth during winter (when surface PAR < 32 mol quanta m-2 d-1).
Entered by	Uri M
ID	107377