This Euglena was captured among freshwater algae sample at Brunswick Community College, Aquaculture Facility located in Brunswick County, North Carolina. Photographed March 4, 2007.
Some of the following images were enlarged using microscope and settings enabling further enlargement from digital camera.

(+/-) Enlarge Euglena #1
Magnified at 40x

(+/-) Enlarge Euglena #2
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(+/-) Enlarge Euglena #3
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(+/-) Enlarge Euglena #4
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Euglena #5

Euglena #6

(+/-) Enlarge Euglena #7
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(+/-) Enlarge Euglena #8
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(+/-) Enlarge Euglena #9
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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
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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
Extension Educator
NOAA
Great Lakes Sea Grant Network
Great Lakes Environmental Research Lab
Heres the same magnified by combination of microscope and camera



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(+/-) Enlarge Euglena #10
Additional Images of Euglena
Euglena, Images / Video, Page One
Euglena, Images, Page Two
Euglena, Images, Page Three
Euglena, Images, Page Four
Video Files
euglena_001.wmv, 7475 k, Euglena, graceful movement of euglena
euglena_002.wmv, 2506 k, Euglena, primitive eyespot of euglena
euglena_003.wmv, 10585 k, Euglena, head to flagellum (euglena has only one, not flagella for two)
euglena_004.wmv, 1428 k, Euglena, short
euglena_005.wmv, 2553 k, Euglena, graceful movement of euglena
euglena_006.wmv, 5881 k, Euglena, getting close to Euglena. Graceful movement of euglena
euglena_007.wmv, 8639 k, Euglena, fine focusing on Euglena. Graceful movement of euglena
Additional Links
Euglena, Protozoan, Phytoplankton, Blog Entry
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