A Saprobic Index for quality of Minapadi Water and the Fish Osmotic Performance Level of MinapadiZaenal Arifin Siregar, Sutrisno Anggoro, Hari Eko Irianto and Hartuti PurnaweniE3S Web Conf., 448 (2023) 03062DOI: https://doi.org/10.1051/e3sconf/202344803062