00831naa#a2200205#i#450# EN\\bibl\64933 20240520124413.1 0131-6184 20230608b2023####ek#y0engy0150####ca RU To the question of substantiating the value of the coefficient of commercial return of the European eel (Anguilla anguilla) in the bays of the Kaliningrad region Journal article Moscow FSBI "TSUREN" 2023 7 с. Journal article local Воспроизводство рыбных запасов. 639.3.03 Разведение рыб в пресной воде. 639.31 Cheban Kseniya Andreevna Khrustalev Evgenij Ivanovich Shapovalova Shapovalova E. Vinokurov Yuri A. tsuren.editorum.ru