Nuclearia retracting filose pseudopodia

Description:

[taxonomy:genus=Nuclearia] Nuclearia is a naked filose amoeba. The filose pseudopodia are involved in feeding and locomotion, and are constantly growing and retracting. This video illustrates the wavy or bent appearance that the filopodia take when they are retracting. Date: 16 Aug 2011 Location: Freshwater fish pond in concrete tank, outside Life Science Lab 7. Walls were covered in filamentous cyanobacteria, and the bottom with fish waste. Water was mostly clear. Microscope: Bright-field with closed condenser aperture. Camera: Nikon D7000