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In this photo taken Thursday, Sept. 24, 2015, Tony Reisinger, a County Extension Agent with Cameron County and Texas A&M University, applies an iodine solution to a water sample taken moments earlier near the jetties of South Padre Island, Texas. The area has started to experience signs of red tide, an algae bloom that can cause fish kills, discolored beach waters, and also poses health risks to humans. The University of Texas-Rio Grande Valley Coastal Studies Lab is monitoring the deteriorating conditions and performing hand counts of algae cells from samples taken around the area’s waters. (Jason Hoekema/Valley Morning Star via AP) MANDATORY CREDIT

In this photo taken Thursday, Sept. 24, 2015, Tony Reisinger, a County Extension Agent with Cameron County and Texas A&M University, applies an iodine solution to a water sample taken moments earlier near the jetties of South Padre Island, Texas. The area has started to experience signs of red tide, an algae bloom that can cause fish kills, discolored beach waters, and also poses health risks to humans. The University of Texas-Rio Grande Valley Coastal Studies Lab is monitoring the deteriorating conditions and performing hand counts of algae cells from samples taken around the area’s waters. (Jason Hoekema/Valley Morning Star via AP) MANDATORY CREDIT

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