It is also possible that many freshwater phytoplankton groups had yet to evolve.
They explain the link between nutrient recycling efficiency and surface nutrient concentration in terms of consumption by phytoplankton, iron supply, light limitation and temperature.
In addition, a phytoplankton decline would carry marked consequences for phytoplankton's role in the global carbon cycle.
Interrelated influence of iron, light and cell size on marine phytoplankton growth.
The distributions of peak areas of phytoplankton biomass and krill were patchy.
Eutrophic or nutrient-rich marine environments are often characterized by a high primary productivity of phytoplankton.
Its dilution effect stabilises the water column, increases the retention of nutrients washed off the islands and leads to periodic phytoplankton blooms.
The geographical extent of this biotope varied, dependent upon the efficiency of local upwelling conditions to provide nutrients for phytoplankton.
