Increased sea surface temperatures due to global warming that occurred from the early to mid 2016 caused of coral bleaching in several locations in TWP Gili Matra. Observations of coral bleaching obtained from coral colonies compotition affected by bleaching (50%), white (18%), death (1%) and was not affected (31%). These implications resulting decline in coral cover but not significant (F (1,013) = 0.333, p > 0.05) from 23,43% ± 2,61 SE in 2012 to 18,48% ± 4,14 SE in 2016 and a significant decrease (P (58,06) (P(20,84)=0,00053,p<0,001) kelimpahan ikan karang dari 28.733,26 ind.ha -1 ± 3.757,89 SE di tahun 2012 menjadi 11.431,18 ind.ha -1 ± 702,53 SE di tahun 2016

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