Female pike-perch (Sander lucioperca) guarding clutch in nest on lake bottom, quarry pond with fresh water, Germany, Europe

animals in the wild animals animal aves bird's egg bird's nest bird nest bird photography birds' eggs birds' nests birds bird body of water bottom of lake bottom of the lake breeding area breeding grounds breeding ground breeding place breeding season breeding site breedings breeding time breeding central europe clutches clutch countryside deserted eggs egg empty europe's europe fauna female animals female animal females female fishes fish freshwater fish frg german federal republic germany german guards guard habitat lake beds lake bed lake bottom lakes lake landscape photo landscape shot landscapes landscape middle europe natural environments natural environment natural habitat nature nesting place nesting sites nesting site nesting nests nest nobody no one no people pike perch pisces quarry ponds quarry pond republic of germany sander lucioperca scenery see travel photography uninhabited waters water wild animals wild animal wildlife photography wildlife wildlife zanders zander