Implications of Heavy Metal Accumulation in Fish Feed, Water, Sediment, and Different Fish Species in a Polyculture System. - Rajar AB; Malik Z; Ujan JA; Rind KH; Ullah R; Naz S; Ullah M; Zahid M; Khan K; Khayyam K; Al-Rejaie SS; Mohany M (Biological trace element research, 2025)