ST. PETERSBURG, Fla. -- Will Fletcher, a fisheries biologist at the Florida Fish and Wildlife Conservation Commission's Fish and Wildlife Research Institute in St. Petersburg, analyzes a sample June 9, 2010. The sample was collected by the Coast Guard during a response call to a National Response Center report, and was found to be decaying organic matter. U.S. Coast Guard photo by Petty Officer 3rd Class Nick Ameen.
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