2021. Cultivation of different densities of common carp ( Cyprinus carpio L.1758 ) in floating cages in the Euphrates River in Nasiriyah city. University of Thi-Qar Journal of agricultural research. 10, 2 (Dec. 2021), 16–24. DOI:https://doi.org/10.54174/utjagr.v10i2.129.