Barnard, S. ., T. L. . Morgenthal, M. Stolz, and A. . Venter. “Impact of Land-Use and Flow Conditions on the Phytoplankton of the Sabie River, South Africa”. Bothalia, African Biodiversity &Amp; Conservation, vol. 51, no. 1, Feb. 2021, doi:10.38201/btha.abc.v51.i1.6.