P SINGH; A NEL. A comparison between Daphnia pulex and Hydra vulgaris as possible test organisms for agricultural run-off and acid mine drainage toxicity assessments. Water SA, [S. l.], v. 43, n. 2 April, 2017. DOI: 10.4314/wsa.v43i2.15. Disponível em: https://watersa.net/article/view/10646. Acesso em: 2 may. 2024.