Linked from
The 36 pages that link to Phytoplankton, each with the reason it gives.
KrillRelated: Phytoplankton are a central food source for krill.
CopepodRelated: Many copepods graze on phytoplankton, channeling its production to larger animals.
Polar ecosystemRelated: In polar seas, blooms provide the base of many marine food webs.
Photic zoneRelated: These organisms account for much of the zone’s open-water photosynthesis.
Lake TahoeRelated: Their growth can cloud Tahoe’s water when nutrients become more available.
Silver carpRelated: These organisms form much of the silver carp’s food.