Growth performances and natural diet of European eel (Anguilla anguilla L.) reared in muddy and sandy pondsOliviero Mordenti, Andrea Di Biase, Antonio Casalini, Pietro Emmanuele, Paolo Melotti and Alessandra RoncaratiAquat. Living Resour., 29 1 (2016) 105DOI: https://doi.org/10.1051/alr/2016011