Sediment Tubes

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Hook
Diane McKnight's "Stream Team" studies all aspects of the streams in Taylor Valley of the Dry Valley system in Antarctica. In 2001-2002, the weather was very warm and the valleys experienced the highest flow year in recorded history. One of the questions the Stream Team explored was how did this high flow affect the algae growing in the streams? Algae that was abundant in 2001 was completely absent in 2002. Why was that? Was the algae scoured by the water and carried to the lakes? Was it covered by sediment deposits? Was there another explanation?

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