ninespine stickleback, pungitius pungitius, tiny freshwater wild fish looks at the camera, typical inhabitant of european biotope

adult algae animal aqua aquatic biotope camera clear close current ecology europe european fauna fish fishkeeping free freshwater funny gasterosteidae gravel grey habitat head ichthyology inhabitant instinct local looks macro native natural nature ninespine ornamental plant protection pungitius river sand shy space spine stickleback tank temperate threat tiny typical ukraine underwater vegetation water weed widespread wild