TY JOUR TI ON THE FINDING OF THE RARE SPECIES OVALONA KARELICA (STENROOS, 1897) (BRANCHIOPODA: ANOMOPODA: CHYDORIDAE) IN THE FLOOD-PLAIN LAKES OF THE KHOPER NATURE RESERVE KW floodplain lakes KW macrophytes KW zooplankton KW cladocerans JO Transactions of Papanin Institute for Biology of Inland Waters RAS AU Fedyaeva, L.A. AU Fedyaev, R.A. PY 2022 IS 0 PB Papanin Institute for Biology of Inland Waters Russian Academy of Sciences