For citations:
Lobyrev F.S., Pivovarov E.A., Khokhryakov V.R., Pavlov S.D. Population parameters of roach, white bream and perch in the lake Ozeryavki (Sebezhsky national park). Trudy VNIRO. 2023;191:37-52. (In Russ.) https://doi.org/10.36038/2307-3497-2023-191-37-52