The role of ichthyopathological observations in the industrial reproduction of sterlet for the tasks of release into the Kuibyshev reservoirMarina Kalaida, Lada Govorkova, Madina Khamitova, Olga Anokhina and Andrey KalaidaE3S Web Conf., 288 (2021) 01046DOI: https://doi.org/10.1051/e3sconf/202128801046