ST. PETERSBURG, Fla. -- Petty Officer 1st Class Bryan Nystrom, a marine science technician stationed at Coast Guard Sector St. Petersburg, examines a substance for sampling in St. Petersburg June 9, 2010, during a response call to a report from the National Response Center. A sample was brought to the Florida Fish and Wildlife Conservation Commission's Fish and Wildlife Research Institute in St. Petersburg, where it was found to be decaying organic matter. U.S. Coast Guard photo by Petty Officer 3rd Class Nick Ameen.
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