Konrad Wothe / Chub (Squalius cephalus) trying to catch a Banded demoiselle (Calopteryx splendens), Bavaria, Germany, June.

Michel Roggo / Chubb (Leuciscus cephalus) under ice in frozen river, Aare river, Switzerland 2006

Michel Roggo / Chubb (Leuciscus cephalus) waiting for food at outlet of lake, Croatia, 2005

Michel Roggo / Looking down at Chubb (Leuciscus cephalus) at surface with reflection of bridge, Rhine River, Switzerland, 1993. No release available.

Michel Roggo / Chubb (Leuciscus cephalus) near surface of water waiting for food, Croatia, 2005

Michel Roggo / Chubb (Leuciscus cephalus) waiting near water surface for food, Croatia, 2004

Michel Roggo / Chub fish (Leuciscus cephalus) and Mute swan (Cygnus color) swimming over, Rhine river, Schaffhausen, Switzerland. RUNNER-UP - Wildlife Photographer of the Year 2010.

Wild Wonders of Europe / Roggo / Bream (Abramis brama) and European chub (Leuciscus / Squalius cephalus) shoal in a calm part of the Rhine, Schaffhausen, Switzerland, February 2009. BOOK & WWE OUTDOOR EXHIBITION. Wild Wonders kids bo...

Wild Wonders of Europe / Roggo / European chub (Squalius / Leuciscus cephalus) and Bream (Abramis brama) shoal in calm part of the Rhine, Schaffhausen, Switzerland, February 2009

Wild Wonders of Europe / Roggo / Chub (Squalius / Leuciscus cephalus) sense shoal in a calm part of the Rhine, Schaffhausen, Switzerland, February 2009

Wild Wonders of Europe / Roggo / Chub (Squalius / Leuciscus cephalus) on spawning ground, Trme, Saane river tributary, Canton of Fribourg, Switzerland, May 2009

Wild Wonders of Europe / Roggo / Bream (Abramis brama) and European chub (Leuciscus / Squalius cephalus) shoal in a calm part of the Rhine, Schaffhausen, Switzerland, February 2009