Around 280 manatees huddle in the embayment area at the Florida Power & Light warm water outfall from the temporary heating system at the Riviera plant in Riviera Beach Tuesday. The plant is shut down due to future plans to modernize it in 2010. FPL turns on the warm water outfall when the water temperature falls below 61 degrees fahrenheit. The temperature in the embayment area is 68 degrees fahrenheit.
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