A water sample was taken from the shore of the Srednerogatsky Pond. Air temp. 14°C (57,2 °F). The sample was keep at room temperature until assayed after 6 days.
Mag. 400x
Imaged are 3 different individuals. Their similarity (gourd-like) prompted me to group them.
The degree of cytoplasmic streaming was most vigorous in the 2 specimens with the longer "extensions". To view videos, see https://youtu.be/D3tdH9whJTw and https://youtu.be/n7b7cfWbyx8. Not sure what these might be, protist, germinating spores or ???.
Bright-field light microscopy; medium-power. In moss.
Magnification of photos: 100×, 400×, 400×, 600×, 600×
Habitat: muddy water, squeezed out of the vernal pool at Allandale Woods
Photo taken with a Celestron PentaView Digital Microscope. According to their website, the FOV (i.e. the diagonal width) at 100× is 600 µm.
https://www.celestron.com/blogs/knowledgebase/what-is-my-digital-microscopes-field-of-view
Possibly a diatom?