Fig. 1. (A) Changes in light intensity at a depth of 4-5 m in Eilat, Red Sea on 3 March 2002 (solid line) and net oxygen fluxes measured using the three-chamber submersible respirometer. The values are per liter and disregard differences in coral size. G. lobata (filled squares), F. favus (triangles) and P. sinuosa (diamonds). (B) UVA + UVB radiation (300-398 nm) at the 5-m depth observed from diurnal measurements conducted in February 2001. (C-E) In situ gross photosynthesis-irradiance curves for the corals (C) Favia favus (N=3), (D) Plerogyra sinuosa coral (N=3) and (E) Goniopora lobata (N=2). Measurements were performed in the Red Sea, Eilat on three consecutive days, 3-5 March 2002.