Entries Tagged Bug of the Month

Type 1701 filaments have highly similar morphology to Sphaerotilus filaments, and these two morphotypes could arguably be combined if the diameter value...

Type 0961 filaments are readily distinguishable at 1,000x oil immersion phase contrast as a light or transparent filament with rectangular cell shape,...

Tubifex worms are unique in that they are visible by the human eye as red or pink tinted worms and sometimes can...

Historically referred to as Nocardia, Gram-positive branched filaments generally ranging from 0.8-1.2 µm in diameter with visible septa (cell walls) are a...

Sponges are nonmoving invertebrates that have specialized cells for filtering water for food. Freshwater sponges filter out food such as bioplankton and...

Water mites are occasionally found in biological wastewater treatment processes with higher sludge retention time values (such as fixed-film systems) and represent...

The microorganism morphotype description for this month’s feature has been recognized as the Thiopedia morphotype by Dr. Michael Richard and Dr. David...

Yeast are generally rare in biological wastewater treatment processes, but may enter the treatment processes through the influent, sludge return side-streams, or...

Eickelboom morphotype Beggiatoa is readily recognizable due to its large diameter (2-4 µm) and its slow-gliding motility. Sometimes septa (cross-walls) may be...

A suctorian is a protozoa from the order Suctoria, which includes both saltwater and freshwater organisms. Suctoria are widely distributed in nature and...

The Eickelboom filament morphotype commonly recognized as Haliscomenobacter hydrossis has a long and somewhat mysterious history. Its recognized growth cause has changed from...

Nostocoida limicola filament types are commonly associated with filamentous bulking in biological wastewater treatment systems throughout the world. Literature such as the 3rd...

Filament type 0411 is commonly correlated with sludge bulking events in wastewater treatment processes all over the world. The most distinguishing characteristics of...

Daphnia are a genus of crustaceans, and while they are rare in activated sludge processes, they are commonly found in wastewater lagoon...