Survival and growth performance the catfish Clarias gariepinus in high density nurseries using recirculating aquaculture system (RAS)Cecilia Eny Indriastuti, Beata Ratnawati and Ivone Wulandari BudihartoE3S Web Conf., 348 (2022) 00013DOI: https://doi.org/10.1051/e3sconf/202234800013