Wastewater Ciliates

Seen here is a sample from a wastewater treatment plant in Southeast Wisconsin. 

The organism in the center of the screen is a rotifer, which feed on small clumps of bacteria. This rotifer species is possibly Lecane, which can feed on Microthrix parvicella or other filamentous bacteria. 

The ciliates swimming around it could be either Paramecium bursaria, which tolerate high concentrations of ammonium and low levels of oxygen; or Glaucoma scintillans, which are usually observed in the first stages of the system. They are fast swimmers and can also tolerate low oxygen.

Видео Wastewater Ciliates канала Aquafix, Inc