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Microscopic image of a section of a fecal pellet.

Microscopic image of a section of a fecal pellet.
Microscopic image of a section of a fecal pellet.
Microscopic image of a section of a fecal pellet.
Microscopic image of a section of a fecal pellet.
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525285
Honjo, Susumu
Microscopic image of a section of a fecal pellet.
Still Image
06/01/1997
Honjo thin section blue.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 40, No. 2, Pg. 6:
Transmision electron microscope image (enlarged some 3,000 times) of a section of a fecal pellet collected by a sediment trap in the North Atlantic. It includes undigested, phytoplankton cell organelles, including chloroplasts. The blue (artificially colored) areas represent remains of coccoliths that were eaten by a zoolankter and passed unaffected through the gut. Coccoliths are composed of nearly pure calcite, the heaviest mineral produced by marine organisms, which makes a fecal pellet heavy enough to settle rapidly through the water column.
Courtesy of Susumu Honjo
Copyright © Woods Hole Oceanographic Institution
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