Impact of land-use and flow conditions on the phytoplankton of the Sabie River, South Africa

Authors

DOI:

https://doi.org/10.38201/btha.abc.v51.i1.6

Keywords:

river, water quality, cyanobacteria, drought, phytoplankton biomass

Abstract

Background: The understanding of the impact of land-use on the dynamics of phytoplankton assemblages during varying climate conditions on rivers is limited.
Objective: To determine the impact of land-use types and flow on phytoplankton assemblages in the Sabie River.
Methods: The relationships between land-use patterns, water quality and phytoplankton assemblages were analysed using canonical correspondence analyses (CCA).
Results: Six main land-use types could be distinguished in the eight identified sub-catchments of the river. The CCA results showed that the land-use had a stronger correlation with phytoplankton classes during the higher flow conditions than during low flow conditions. The forestry land-use type had the strongest correlation with nitrate–nitrite concentrations in the Sabie River. Chlorophyll-a concentrations were higher during 2016, and a slightly lower number of genera were observed for the class Chlorophyceae. During 2017 the number of genera of the class Cyanophyceae decreased together with chlorophyll-a and total cell concentrations.
Conclusion: Low flow conditions favoured filamentous genera that are common to mesotrophic conditions while higher flow conditions favoured single-celled small genera more common to oligotrophic waters with higher disturbance. This study showed that flow has the potential to enhance the impact of land-use on phytoplankton community dynamics in a river system and thereby may have further impacts on the health and activities of surrounding communities.

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References

Abirhire, O., North, R.L., Hunter, K., Van der Gucht, D. & Hudson, J., 2016, ‘Do human activities affect phytoplankton biomass and composition in embayments on Lake Diefenbaker?’, Journal of Freshwater Ecology 31(4), 597–608, https://doi.org/10.1080/02705060.2016.1205526

Barnard, S., Morgenthal, T.L., Stolz, M., Venter, A. & Erasmus, A., 2019, Water quality and algal assemblages of the Sabie River and tributaries, including the Inyaka Dam, in relation to land-use practices, WRC Report No. 2755/1/19, Water Research Commission, Pretoria, South Africa.

Bengis, R., Govender, D., Lane, E., Myburgh, J., Oberholster, P. & Buss, P., 2016, ‘Eco-epidemiological and pathological features of wildlife mortality events related to cyanobacterial bio-intoxication in the Kruger National Park, South Africa’, Journal of the South African Veterinary Association 87(1), 1391–1395.

Bussi, G., Whitehead, P.G., Bowes, M.J., Read, D.S., Prudhomme, C. & Dadson, S.J., 2016, ‘Impacts of climate change, land-use change and phosphorus reduction on phytoplankton in the River Thames (UK)’, Science of the Total Environment 572, 1507–1519, https://dx.doi.org/10.1016/j.scitotenv.2016.02.109.

Cabecinha, E., Van den Brink, P.J., Cabral, J. A., Cortes, R., Lourenço, M., & Pardal, M. A., 2009, ’Ecological relationships between phytoplankton communities and different spatial scales in European reservoirs: implications at catchment level monitoring programmes’, Hydrobiologia 628, 27–45, https://dx.doi.org/0.1007/s10750-009-9731-y

Cantonati, M., Poikane, S., Pringle, C.M., Stevens, L.E., Turak, E., Heino, J., Richardson, J.S., Bolpagni, R., Borrini, A., Cid, N., ?tvrtlíková, M., Galassi, D.M.P., Hájek, M., Hawes, I., Levkov, Z., Naselli-Flores, L., Saber, A.A., Cicco, M.D., Fiasca, B., Hamilton, P.B., Kube?ka, J., Segadelli, S. & Znachor, P., 2020, ‘Characteristics, main impacts, and stewardship of natural and artificial freshwater environments:

Consequences for biodiversity conservation’, Water 12(260), 1–85, https://dx.doi.org/10.3390/w12010260

Department of Environmental Affairs (DEA), 2016, South Africa Protected Area Database. Department of Environmental Affairs, Pretoria, South Africa, viewed on 7 July 2020 from https://egis.environment.gov.za/data_egis/data_download/current

Department of Water Affairs and Forestry (DWAF), 1996, South African water quality guidelines: Volume 7: Aquatic ecosystems, 2nd Edition, Department of Water Affairs and Forestry, Pretoria, South Africa.

ESRI 2019, ArcGIS Desktop, ArcMap Release 10.7. Environmental Systems Research Institute.

GeoTerraimage (South Africa). 2015. 2013–2014 South African National Land-Cover Dataset. DEA/CARDNO SCPF002: Implementation of Land-Use Maps for South Africa. Project Specific Data User Report and MetaData.

Gökçe, D. 2016, ‘Algae as an Indicator of Water Quality’ in Thajuddin N and Dhanasekaran D. (eds.) Algae – Organisms for Imminent Biotechnology, pp. 81–101, IntechOpen, https://dx.doi.org/10.5772/62916

Griffin, N.J., Plamer, C.G., & Sherman, P-A, 2014, Critical analysis of environmental water quality in South Africa: Historic and current trends, WRC Report No. 2184/1/14, Water Research Commission, Pretoria, South Africa.

Hayes, N.M., Vanni, M.J, Horgan, M.J. & Renwick, W.H., 2015, ‘Climate and land-use interactively affect lake phytoplankton nutrient limitation status’, Ecology 96(2), 392–402.

Kändler, M., Blechinger, K., Seidler, C., Pavlu, V., Šanda, M., Dostál, T., et al., 2017, ‘Impact of land-use on water quality in the upper Nisa catchment in the Czech Republic and in Germany’, Science of the Total Environment 586, 1316–1325, http://dx.doi.org/10.1016/j.scitotenv.2016.10.221

Katsiapi, M., Mazaris, A.D., Charalampous, E. & Moustaka-Gouni, M., 2012, ‘Watershed land-use types as drivers of freshwater phytoplankton structure’, in: Salmaso N., Naselli-Flores L., Cerasino L., Flaim G., Tolotti M., Padisák J. (eds) ‘Phytoplankton responses to human impacts at different scales, Developments in Hydrobiology’, 221, pp. 121–132, Springer, https://doi.org/10.1007/s10750-012-1095-z.

Lange, K., Townsend, C.R., & Matthaei, C.D., 2015, ‘A traitbased framework for stream algal communities’, Ecological Evolution 6(1), 23–36, https://doi.org/10.1002/ece3.1822

Masango, M.G, Myburgh, J.G., Labuschagne, L., Govender, D., Bengis, R.G & Naicker, D., 2010, ‘Assessment of Microcystis bloom toxicity associated with wildlife mortality in the Kruger National Park, South Africa’, Journal of Wildlife Diseases 46(1), 95–102.

Michalak, A.M., 2016, ‘Study role of climate change in extreme threats to water quality’, Nature 535, 349–350.

Mucina, L. & Rutherford, M.C., 2006, ‘The vegetation of South Africa, Lesotho and Swaziland’, Strelitzia 19(3), 31–50.

Namugize, J.N, Jewitt, G. & Graham, M., 2018, ‘Effects of land-use and land cover changes on water quality in the uMngeni river catchment, South Africa’, Physics and Chemistry of the Earth, Parts A/B/C, https://doi.org/10.1016/j.pce.2018.03.013.

NASA JPL. NASA Shuttle Radar Topography Mission Global 1 arc second. 2013, distributed by NASA EOSDIS Land Processes DAAC, viewed on 27 May 2020, https://doi.org/10.5067/MEaSUREs/SRTM/SRTMGL1.003.

Pollard, S. & Du Toit, D., 2011, The Shared River Initiative Phase I. Towards the sustainability of freshwater systems in South Africa: An exploration of factors that enable or constrain meeting the Ecological Reserve within the context of Integrated Water Resources Management in the catchments of the Lowveld, WRC Report No.TT 477/10, Water Research Commission Pretoria, South Africa.

Pollard, S. & Walker, P., 2000, ‘Catchment management, water supply and sanitation in the Sand River Catchment, South Africa: Description and Issues’. WHIRL Project Working Paper 1. UK DFID, Project No. R7804. NRI, Department for International Development, Chatham, United Kingdom. pp.1–18.

Reid, A.J., Carlson, A.K., Creed, I.F., Eliason, E.J., Gell, P.A., Johnson, P.T.J., Kidd, K.A., MacCormack, T.J., Olden, J.D., Ormerod, S.J., Smol, J.P., Taylor, W.W., Tockner, K., Vermaire, J.C., Dudgeon, D. & Cooke, S.J., 2019, ‘Emerging threats and persistent conservation challenges for freshwater biodiversity’, Biology Reviews 94, 849–873, https://doi.org/ 10.1111/brv.12480

Reynolds, C.S. & Descy, J.P., 1996, ‘The production, biomass and structure of phytoplankton in large rivers’, Archiv für Hydrobiologie 10, 161–187.

Roux, F., Diedericks, G., Kleynhans, C.J., Thirion, C., Hoffmann, A.C. & Selepe, M., 2017, ‘Ecostatus of the Sabie-Sand River catchment, Inkomati River system phase II (2016)’, Mpumalanga Tourism and Parks Agency, Scientific Services: Aquatic and Herpetology.

Shi, P., Zhang, Y., Li, Y., Li, P. & Xua, G., 2017, ‘Influence of land-use and land cover patterns on seasonal water quality at multi-spatial scales’, Catena 151, 182–190, http://dx.doi.org/10.1016/j.catena.2016.12.017.

Shikwambana, S., Taylor, J.C, Govender, D. & Botha J., 2021, ‘Diatom responses to river water quality in the Kruger National Park, South Africa.’ Bothalia 51(1): 63–74 (hardcopy); 1–11 (online) [this issue].

Smit, I., 2017, After the drought: What is the future for Kruger’s waterholes? Viewed 9 July 2018 from http://www.wildcard.co.za/drought-future-krugers-waterholes

Stockwell, J. D., Doubek, J.P., Adrian, R., Anneville, O., Carey, C.C., Carvalho, L., De Senerpont Domis, L. N., Dur, G., Frassl, M.A., Grossart, H-P., Ibelings, B.W.,Lajeunesse, M. J., Lewandowska, A. M., Llames, .M. E.,Matsuzaki, S., Nodine, E. R., Nõges, P., Patil, V.P., Pomati, F., Rinke, K., Rudstam, L. G., Rusak, J. A., Salmaso, N., Seltmann, C.T., Straile, D., Thackeray, S.J., Thiery, W., Urrutia-Cordero, P., Venail, P., Verburg, P., Woolway, R. I., Zohary, T., Andersen, M. R., Bhattacharya, R., Hejzlar, J., Janatian, N., Kpodonu, A. T. N. K., Williamson, T. J., & Wilson, H. L., 2020, ‘Storm impacts on phytoplankton community dynamics in lakes.’ Global Change Biology 26(5), 1354–1013, http://dx.doi.org/10.3390/w12010260

Swanepoel, A., Du Preez, H., Schoeman, C., Janse van Vuuren, S. & Sundram, A., 2008, Condensed laboratory methods for monitoring phytoplankton, including cyanobacteria, in South African freshwaters, WRC Report No. TT 323/08, Water Research Commission Pretoria, South Africa.

Taylor, J.C., Harding, W.R. & Archibald, C.G.M., 2007, An illustrated guide to some common diatom species from South Africa, WRC Report No. TT 282/07, Water Research Commission, Pretoria, South Africa.

Ter Braak, C.J. & Šmilauer, P.N., 2002, ‘CANOCO Reference Manual and CanoDraw for Windows User’s Guide: Software for Canonical Community Ordination (version 4.5) pp. 119. Ithaca, New York.

Tlou, T., 2011, ‘Bushbuckridge Local Municipality: First order reconciliation strategy for the Inyaka Regional Water Supply Scheme Area’, Department of Water Affairs’, Contract: WP, 9712, 2–27.

Vrebos, D., Beauchard, O. & Meire, P., 2017, ‘The impact of land-use and spatial mediated processes on the water quality in a river system’, Science of the Total Environment, 601-602, 365–373, http://dx.doi.org/10.1016/j.scitotenv.2017. 05.217

Wehr, J.D., Sheath, R.G. & Kociolek, J.P., 2015, Freshwater algae of North America: ecology and classification, Second Edition, Elsevier, London.

Winder, M. & Sommer, U., 2012, ‘Phytoplankton response to a changing climate’, Hydrobiologia 698(1), 5–16.

Xizhi, L., Jing, H., Peiqing, X., Pan, Z. & Jiaoxuehui., 2017, ‘Correlation analysis between the water quality and landuse composition in Chaobai River Basin’, Nature Environment and Pollution Technology 16(1), 307–314.

Xu, E. & Zhang H., 2016, ‘Aggregating land-use quantity and intensity to link water quality in upper catchment of Miyun Reservoir’, Ecological Indicators 66, 329–339.

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Published

2021-02-24

How to Cite

Barnard, S. ., Morgenthal, T. L. ., Stolz, M., & Venter, A. . (2021). Impact of land-use and flow conditions on the phytoplankton of the Sabie River, South Africa. Bothalia, African Biodiversity &Amp; Conservation, 51(1). https://doi.org/10.38201/btha.abc.v51.i1.6

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Original research, Reviews, Strategies, Case studies