Cyanobacteria and diatoms, light micrograph
Rivularia cyanobacteria, light micrograph
Filamentous cyanobacteria, light micrograph
Rivularia cyanobacteria colony, light micrograph
Vaginicola ciliate on cyanobacteria, light micrograph
Rivularia cyanobacteria and diatom, light micrograph
Heliozoan and Sirgonium, light micrograph
Cyanobacteria, polarised light micrograph
Spirulina cyanobacteria, light micrograph
Phormidium sp. cyanobacteria, light micrograph
Heliozoans on green alga, light micrograph
Ciliate protozoa, light micrograph
Microorganisms, light micrograph
Diatoms and cyanobacteria, micrograph
Cyanobacteria and diatom, LM
Cyanobacteria filaments, LM
Navicula diatoms, light micrograph
Netrium desmid, light micrograph
Anabena sp., LM
Nostoc sp., LM
Scytonema sp., LM
Phormidium sp. algae, light micrograph
Diatoms and filamentous algae, light micrograph
Nostoc pruniforme cyanobacteria, LM
Algae and ciliate on aquatic plant, light micrograph
Rotifer, light micrograph
Cosmarium desmid, light micrograph
Chroococcus cyanobakteria, LM
Gomphonema sp. diatoms and green alga, light micrograph
Pond life, light micrograph
Asterionella diatoms, LM
Cymbella sp. Diatoms, LM
Cymbella Diatoms, LM
Diatoma diatoms, LM
Algae, light micrograph
Aphanothece sp. cyanobacteria, LM
Phycopeltis green alga, light micrograph
Green algae colony, light micrograph
Green algae colony attached to sand grain, light micrograph
Algae colonies attached to sand grains, light micrograph
Green algae, light micrograph
Green alga on aquatic plant, light micrograph
Desmids and cyanobacteria, micrograph
Desmid and Cyanobacteria, micrograph
Diatoms, light micrograph
Anabaena cyanobacteria, light micrograph
Diatoms on water flea, light micrograph
Red algae and diatoms, light micrograph
Cyanobacteria, light micrograph
Cymbella sp. diatoms, light micrograph
Tabellaria freshwater diatoms, LM
Gyrosigma freshwater diatoms, LM
Melosira sp. diatoms, LM
Coscinodiscus sp. diatom, LM
Synedra diatom group, LM
Diatoma diatom, LM
Stephanodiscus diatom, LM
Achnanthes sp. algae, light micrograph
Tabellaria sp. algae, light micrograph
Odontella sp. algae, light micrograph
Green alga on an aquatic plant, light micrograph
Cladophora filaments, LM
Nostoc cyanobacteria, LM
Water flea and cyanobacteria, micrograph
Spirulina meneghiniana cyanobacteria, light micrograph
Lyngbya sp. algae, light micrograph
Nostoc sp. algae, light micrograph
Draparnaldia green algae, light micrograph
Green alga, light micrograph
Desmids, light micrograph
Spirotaenia desmid, light micrograph
Suctorian ciliate, light micrograph
Meridion circulare diatoms, LM
Asterionella diatoms, light micrograph
Fragilaria diatoms, light micrograph
Gomphonema diatoms, light micrograph
Diatoma diatoms, light micrograph
Epithemia diatoms, light micrograph
Diatoms and desmids, light micrograph
Diatoms on duckweed, light micrograph
Diatoms on red algae, light micrograph
Oscillatoria cyanobacteria, light micrograph
Thalassiosira punctigera, light micrograph
Odontella sp. diatom, LM
Nitzschia sp. diatom and red algae, light micrograph
Calothrix cyanobacterium, LM
Anabena cyanobacterium, LM
Golden algae, light micrograph
Gloeotrichia sp. cyanobacteria, light micrograph
Ophrydium protozoa, light micrograph
Draparnaldia green algae, polarised light micrograph
Closterium desmid, light micrograph
Hyalotheca desmids, light micrograph
Amoeba with Euglena and diatoms, light micrograph
Difflugia amoeba and sp. diatoms, light micrograph
Phycopeltis alga and diatoms, light micrograph
Anabaena sp., algae, light micrograph
Cyanophyte, light micrograph
Nostoc cyanobacteria, light micrograph
Haematococcus algae, light micrograph
Euglena sp. algae, light micrograph
Rotifer and green algae, light micrograph
Phycopeltis green alga and diatoms, light micrograph
Fragilaria, Cymbella and Synedra diatoms, light micrograph
Red alga and diatoms, polarised light micrograph
Diatoms and green algae, light micrograph
Diatoms on the surface of a sand grain, light micrograph
Nostoc flagelliforme cyanobacteria, light micrograph
Aquatic plant with cyanobacteria and algae, light micrograph
Epithemia diatom, light micrograph
Microbial sphere, SEM
Thalassiosira diatom, LM
Thalassionema diatom, LM