The pair say they were struck by the degree of bleaching in gigantic boulder-like bommies, or reef outcrops, comprised of a stony coral called porites. "We went inside, swam [through the] nooks ...

Disaster Control Research Center, Graduate School of Engineering, Tohoku University, Aoba 6–6–11–1104, Aramaki, Aoba–Ku, Sendai 980–8579, Japan ...