freshwater fish siberian sturgeon, acipenser baeri in the beautiful clean river. underwater photography of swimming sturgeon in

acipenser acipenseridae actinopterygii animal asian baerii baikal catching caviar china close commercial cooking endangered fauna fish fishes fishing food fresh freshwater grey head kazakhstan lena lifestyle luxury natural nature river russia russian siberia siberian sibirischen starlet stenorrhynchus sturgeon stapara swim swimming tasty underwater water wild wildlife