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similar levels have been found in pike, walleye, and bass taken from polluted fresh waters.
livelli simili sono stati riscontrati in lucci (lucius), sandre americane (stizostedion vitreum vitreum) e spigole (labrax) prelevati da acque dolci inquinate.
in romania there are special lakes for carp, pike, walleye and perch fishing. these lakes are private and, therefore, well guarded and abundant in fish.
in romania ci sono laghi speciali per la pesca alla carpa, al luccio, lucioperca e al persico. questi laghi sono privati e quindi ben sorvegliati e ricchissimi di pesce.