TY JOUR TI Influence of wintering on morphophysiological and chemical indicators of pikeperch Sander lucioperca KW pike perch KW wild and farm fish KW wintering KW fatness coefficient KW muscles KW liver KW abdominal fat KW fatty acids KW fatty acid composition KW nutritional value JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Lyutikov, A.. AU Shumilina, A.. AU Korolev, A.. PY 2023 IS 2023 PB Astrakhan State Technical University