Change Date: 15 Nov 2016, 11:14 a.m.
nitrogen_growth_limitation_of_diatoms 1 [UUUU] Diatoms are single-celled phytoplankton with an external skeleton made of silica. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis.