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foraminifer with dinoflagellates

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Published on Jan 17, 2008

This is time lapse (~90x real-time) video-microscopy of a soritid foraminifer encountering Symbiodinium dinoflagellates, using a Nikon inverted phase contrast scope, Nikon D80 camera, and iStopMotion software.

This shows the interaction between two marine microorganisms, a foraminifer and many tiny dinoflagellate algae. The large disc-shaped thing is the foraminifer; it is about 2mm across. It is collecting the dinoflagellates around it. These dinoflagellates are the same algae that live inside corals, and these foraminifera have a similar symbiotic relationship with their algae as do corals. I use this kind of time-lapse video to compress processes that happen on a longer time scale into a few seconds, which helps to understand the dynamic nature of the living microscopic world on coral reefs.

Thanks for watching! This is my first YouTube video and would love some feedback.

The audio track is "Gangster's Theme" by RZA, from the Ghost Dog soundtrack.

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