In situ observation data from the grouper roi (Cephalopholis argus) removal project in West Hawaii from 2010-2011 (NODC Accession 0082197)

In situ observations of the introduced predatory grouper roi (Cephalopholis argus) were taken within the coral reef ecosystem of Puako, northwest side of the Island of Hawaii in 2010-2011. Baseline surveys before roi removal were made in November 2010 and March 2011. After roi removal, a final survey was made in June 2011. A total of 47 transects were surveyed at control, reference, and treatment sites. Observations were made by experienced marine biologists using SCUBA at a depth range of 10-20 m. Tow board and standard visual belt transects were employed.