Animal
(zooplankton)
midge fly larva
Protists
(zooplankton)
Protists (phytoplankton)
nodularia
paramecium
hydra
chilodinella
spyro gyra
bosmina
vorticella
chlorophyta
cyclops
euglena
microcystis
cypris
sarcodina (amoebas)
eudorina
rotifer
paranema
cocconeis
macrothrix
oscillatoria
chaetonotus
volvox