Larger image (Magnified above at 40x)
Another freshwater critter of curiosity I caught dancing around among the algae. Though its green like algae, it moves about on its own. A noticeable feature, was the bright reddish spot...
Sharon wrote: I noticed on your page you have a very similar phytoplankton to the one I found.
But it is not the same species. I want to identify the species. Mine has a red dot on it, which looks like an eye, but I do not believe it is in an eye.
Please can you help me to identify this species?
Thank you, Sharon Mooney
It's almost certainly a euglenoid.
IF it was flexible in motion (e.g., the cell body itself flexible, not just the flagella), it is almost certainly a member of the genus Euglena.
The red spot is in fact an 'eyespot' - it's a very primitive eye that allows the euglena to detect light -- a big advantage for a mobile photosynthesizer.
Dr. Rochelle Sturtevant
Great Lakes Sea Grant Network
Great Lakes Environmental Research Lab
Heres the same magnified by combination of microscope and camera
Euglena Images, Page Four