Life SciencesEcologyMicrobiologyMicrobial EcologyPhotosynthesisTerrestrial EcologyAlgal EcologyDesert EcologyDesertificationMicrobial Plankton EcologyPhotosynthesis In MicroorganismsPhytoplankton EcologyCyanobacterial PhotosynthesisDesert Community EcologyDesert Microbial EcologyDesert MicrobiologyMicrophytobenthos ProductionPhotosynthetic Microbial CommunitiesPhytoplankton Community StructureProchlorococcus Ecology