Tree with Slime Algae
Fig. 8: The sunken trees are covered with slime algae. Don't touch them or they might fall off as shown on this picture. — Nikon D200, Nikkor AF-S 10.5mm f/2.8 Fisheye, 2 x Sea & Sea YS-110α strobes, Lake Samaranger, Austria, 10 August 2013 Nikon D200; Δt=1/250 s; f=10.5 mm; f/4.0; ISO 200; 10 August 2013 15:25:33