Swimming Daphnia or Tigriopus in 62-ml tissue culture flasks ("Closed Ecological Systems"). We are trying to develop appropriate techniques to video-record the animal populations and use the computer to enumerate populations and possibly size distributions. The animals are active swimmers, and we hope to use the general size and swimming motion to distinguish between animals and algae clumps, shed carapaces, or detritus.
The videos were developed by NASA Washington Space Grant Consortia summer students Deborah Siegel and Vivian Hope.
The following URLs link to the videos* of Tigriopus and Daphnia. The videos are formatted as avi files. QuickTime is recommended for viewing, especially if you're not familiar with video viewing software. Otherwise, feel free to use your plug-in or program of choice. If you need a viewer, you can obtain QuickTime from Apple: http://www.apple.com/quicktime/.
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*Video files were compressed using Microsoft Video I.