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High-nutrient, low-chlorophyll regions

High-nutrient, low-chlorophyll (HNLC) regions are regions of the ocean where the abundance of phytoplankton is low and fairly constant despite the availability of macronutrients. Phytoplankton rely on a suite of nutrients for cellular function. Macronutrients (e.g., nitrate, phosphate, silicic acid) are generally available in higher quantities in surface…

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Primary production

Global distribution

Hypotheses

Geo-engineering HNLC regions

Energy resources

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High-nutrient, low-chlorophyll regions

Nodes93
Edges92
Triples21
Avg. degree1.98
Density0.021505
Components1

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Important terminology

iron phytoplankton ocean hnlc regions pacific southern waters equatorial carbon production primary grazing north surface low growth concentrations dust macronutrients

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
grazing control which poses that HNLC regions are formedinstance ofIt has also led to the development of hypotheses0.80text
in partinstance ofIt has also led to the development of hypotheses0.80text
from the grazing of phytoplanktoninstance ofIt has also led to the development of hypotheses0.80text
nitrateinstance ofmacronutrients0.80text
phosphate must be available in sufficient ratiosinstance ofmacronutrients0.80text
bioavailable forms for biological utilizationinstance ofmacronutrients0.80text
trace metals for cellular functionsinstance ofphytoplankton need micronutrients0.80text
prochlorococcusinstance ofCommon picoplankton within these regions include genera0.80text
Haida Eddies.Concentrations of iron however vary throughout the yearinstance ofsometimes by eddies0.80text
ironinstance ofthe Equatorial Pacific is considered nutrient-limited due to lack of trace metals0.80text
storm petrels near the convergence of subtropical waterinstance ofProductivity leads to an abundance of seabirds0.80text
the equatorialinstance ofProductivity leads to an abundance of seabirds0.80text

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