Shykhaleyeva , G.M. and Kiryushkina , G.M. 2025. Accumulation of heavy metals (Cu, Cr, Pb, Cd) in aquatic invertebrates from the hyperhaline Kuyalnyk estuary (Ukraine, North-Western Black Sea region). Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy. 32 (Jun. 2025), 124-133. DOI:https://doi.org/10.26565/1992-4259-2025-32-09.