%0 Journal Article %T Chemical element content in bony fin rays of Acipenser gueldenstaedtii (Brandt, 1833) %A Zaitsev, V.. %A Chaplygin, V.. %A Kudyakov, A.. %A Ershova, T.. %A Volkova, I.. %K chemical elements, concentration, bone rays of fins, Russian sturgeon, age, gender %J Vestnik of Astrakhan State Technical University. Series: Fishing industry %D 2024 %N 2024 %P 7 %I Astrakhan State Technical University