High levels of total ammonia nitrogen as NH4+ are stressful and harmful to the growth of Nile tilapia juveniles - doi: 10.4025/actascibiolsci.v35i4.17291. Acta Scientiarum. Biological Sciences, [S. l.], v. 35, n. 4, p. 475–481, 2013. DOI: 10.4025/actascibiolsci.v35i4.17291. Disponível em: https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/17291. Acesso em: 30 maio. 2026.