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![This image shows a control site at the Mona Island reef r0000758.jpg This image shows a control site at the Mona Island reef](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_r0000758.jpg?itok=hAe25Eu-)
Description
This image shows a control site at the Mona Island reef. Control sites wereselected at random to measure conditions of the reef outside the impacted area.Control sites help scientists determine the success of the restoration effortby later comparing conditions at the control site with those within the restoration areas. (Image credit: NOAA Restoration Center, Erik Zobrist)