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Posted Sun Jul 11 2010: from Associated Press:
Scientists roll out mats to kill Lake Tahoe clams http://apocadocs.com/s.pl?1278863255
Scuba-diving scientists are unrolling long rubber mats across the bottom of Lake Tahoe coves in an attempt to quell a clam invasion that could cloud the world-reknown cobalt waters. The half-acre mats are designed to smother dime-sized nonnative Asian clams that can reach populations of 5,000 per square yard. Geoffrey Schladow, director of the Tahoe Environmental Research Center run by the University of California, Davis, said the clams promote so much algae growth that they can turn some coves from blue to green. "They suck in the water and they filter out the algae. Their excretions are highly concentrated packages of nutrients," he said.
[Read more stories about: ecosystem interrelationships, invasive species, koyaanisqatsi]

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'Doc Michael says:
Unwelcome mats make clams sad.

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