HNLC
2032430
177041002
2007-12-10T19:08:06Z
Wavelength
271168
adding heading "See also" and 6 internal links retrieved from "What links here"
'''HNLC''' stands for "high-nutrient, low-chlorophyll" - a term used in marine ecology to describe areas of the ocean where the number of [[phytoplankton]] (standing stock) are low in spite of high macro-nutrient concentrations (nitrate, phosphate, silicic acid). HNLC is thought to be caused by the scarcity of iron (a micro-nutrient which phytoplankton require for photosynthesis) and high grazing rates by micro-[[zooplankton]] that feed on the [[phytoplankton]]. The HNLC condition has been observed in the equatorial and subarctic [[Pacific Ocean]], the [[Southern Ocean]], and in some strong upwelling regimes, such as off central and northern California and off Peru.
== See also ==
*[[Antarctic krill]]
*[[Iron fertilization]]
*[[Iron Hypothesis]]
*[[John Martin (oceanographer)]]
*[[Marine snow]]
*[[Primary production]]
{{ecology-stub}}
[[Category:Aquatic ecology]]
[[ja:HNLC海域]]