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Ice coring off Antarctica for microbial research.

Ice coring off Antarctica for microbial research.
Ice coring off Antarctica for microbial research.
Ice coring off Antarctica for microbial research.
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598956
Gast, Rebecca
Ice coring off Antarctica for microbial research.
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09/01/2005
gast_icecoring1.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 44, No. 3, Pg. 14:
Ross Sea—
Biologist Rebecca Gast and colleagues spent autumn 2005 aboard the icebreaker Nathaniel B. Palmer off Antarctica, where spring weather in the Southern Hemisphere was melting the pack ice. Gast’s group identified changes in the microbial community as the season progressed. One goal was to determine whether microbes that were frozen into the ice last fall would “seed” the annual spring blooms, or whether the spring-blooming microbes are actually present in seawater all year long. Gast also continued her investigations of an unnamed microbe that eats algae and removes their photosynthetic plastids (an organelle within the cytoplasm). The algae incorporate the plastids and keep them alive and photosynthesizing.
Photo by Rebecca Gast
© Woods Hole Oceanographic Institution
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