Perch Swarm
Fig. 48: A swarm of young perches (Perca fluviatilis) playing in a seagrass meadow. — Nikon D200, Nikkor 10.5mm DX Fisheye, Rütenen/Beckenried, Lake Lucerne, 6 September 2009 Nikon D200; Δt=1/250 s; f=10.5 mm; f/8.0; ISO 400; 6 September 2009 13:57:50