Swarm of perches
Fig. 37: A shoal of young eglis makes its rounds above the lake grass. Dive 663: Dive site Pumpwerk Rüschlikon, Lake Zurich. — EXIF: Nikon D200; Δt=1/250 s; f=10.5 mm; f/5.6; ISO 100; 2019-06-21 10:46:06