Example images of living and dead corals.

Example images of alive and dead polyps. Upper row—pictures from time 0 h: orange and white coral samples with healthy polyps. Lower row—pictures from time 1440 h: orange and white coral samples with dead polyps (red ellipse indicates dead polyps). The coral sample in the lower left picture was orange prior to exposure, but exposure to 2-methylnaphthalene lead to loss of pigmented tissue and has rendered it predominantly white. The lower right picture exhibits a white coral sample with dead polyps.