Ammonia

Silicate

Small

Phytoplankton

Large

Phytoplankton

Small

Zooplankton

Large

Zooplankton

Detritus

Nitrogen

Detritus

Silica

Predation

Mortality

Remineralization

Uptaking

Uptaking

Uptaking

Dissolution

Fecal

Mortality

Grazing

Grazing

Mortality

Mortality

Nitrate

Grazing

Mortality

Biological Model (Rubao Ji, UMass Dartmouth)