underwater photography of the biggest fish beluga, huso huso swimming in the river. beautifull river habitat. freshwater fish

acipense acipenser acipenseriformes actinopterygii alive angling animal aquaculture aquarium aquculture azov background baikal bait baltic beluga bulgaria caspian casting caviar cloce closeup critically danube diving endangered european fish fisherman fishing fishtank freshwater hausen hook huso ichthyology irtysh kazakhstan lake large live photography portrait predator river rod romania russia russian saltwater sea seafood siberia siberian sport sterlet sturgeon swim the underwater ural volga water wildlife