Fig. 65: Zebra mussels (Dreissena polymorpha) on the sea ground. These mussels came from the Black Sea and spread out here like a pest and replace the endemic mussels. They stick on every solid ground even crabs and other mussels. — Nikon D200, Nikkor AF Micro 60mm, 2 x Sea&Sea YS-110α, Hergiswil, Lopper, Lake Lucerne, 29 July 2012 — EXIF: Nikon D200; Δt=1/250 s; f=60 mm; f/18.0; ISO 200; 2012-07-29 9:39:28
