Sex identification of the ornamental amazon fish Astronotus ocellatus by videoceloscopy and gonadal biopsy - Mansur, Victor Ferreira Ribeiro; Melo, Naiara; Di Chiacchio, Isabela Martins; Assis, Isadora de Lima; Machado, Gilmara Junqueira; Paiva, Isadora Marques; Carvalho, Aline Ferreira Souza de; Pereira, Rodrigo Norberto; Murgas, Luis David Solis (Animal Reproduction Science, 2021)