Abstract
A primary production model is described and compared to 3 observational data bases: light-saturated carbon fixation, net phytoplankton primary production, and gross phytoplankton pri- mary production. The model successfully reproduces the observations while maintaining realistic calculations of algal carbon, chlorophyll, limiting nutrient, and light attenuation. Computed primary production in light-limited regions is proportional to the algal growth rate. Successful computation of primary production in nutrient-depleted waters depends on the formulation and magnitude of the model predation term. Our quadratic formulation mimics a predator population that is closely coupled to algal biomass and rapidly recycles nutrients from algal biomass to available form.
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