Although phytoplankton nutrient uptake rates are controlled primarily by biological properties of the organism and nutrient concentration, diffusion transport of nutrient to the organism through the medium in which the organism is immersed can influence uptake rates. The original ideas of Munk and Riley on control of nutrient uptake by diffusion transport are recast in terms of present knowledge of the interaction of diffusion transport and biological control of uptake rates....
Gavis, Jerome. 1976. "Munk and Riley revisited: Nutrient diffusion transport and rates of phytoplankton growth." Journal of Marine Research 34, (2). https://elischolar.library.yale.edu/journal_of_marine_research/1354