Evaluation of river mouth dynamics along the Eastern Cape coastline, South Africa

References

• ADAMS, J.B. & VAN NIEKERK, L. 2020. Ten Principles to Determine Environmental Flow Requirements for Temporarily Closed Estuaries. Water 12: 1944. doi:10.3390/w12071944.
   Web of Science ®Google Scholar
• ALLANSON, B., BAIRD, D. & HEYDORN, A. 1999. Perspectives. In Allanson, B. & Baird, D. (Eds.) Estuaries of South Africa. Cambridge, Cambridge University Press. pp. 321–327.
   Google Scholar
• ALLANSON, B.R. & READ, G.H.L. 1995. Further comment on the response of Eastern Cape Province estuaries to variable freshwater inflows. Southern African Journal of Aquatic Science 21: 56–70.
   Google Scholar
• BENNETT, B.A. 1989. A comparison of the fish communities in nearby permanently open, seasonally open and normally closed estuaries in the South-Western Cape, South Africa. South African Journal of Marine Science 8: 43–55.
   Web of Science ®Google Scholar
• BLAMEY, R.C., KOLUSU, S.R., MAHLALELA, P., TODD, M.C. & REASON, C.J.C. 2018. The role of regional circulation features in regulating El Niño climate impacts over southern Africa: A comparison of the 2015/2016 drought with previous events. International Journal of Climatology 38: 4276–4295.
   Web of Science ®Google Scholar
• BOATENG, I., BRAY, M. & HOOKE, J. 2012. Estimating the fluvial sediment input to the coastal sediment budget: A case study of Ghana. Geomorphology 138: 100–110.
   Web of Science ®Google Scholar
• BOOYSEN, Z. & THERON, A.K. 2020. Methods for predicting berm height at Temporarily Open/Closed Estuaries. Estuarine, Coastal and Shelf Science 245: 106906. doi:10.1016/j.ecss.2020.106906.
   Web of Science ®Google Scholar
• CHIGOR, V.N., SIBANDA, T. & OKOH, A.I. 2013. Variations in the physicochemical characteristics of the Buffalo River in the Eastern Cape Province of South Africa. Environmental Monitoring and Assessment 185: 8733–8747.
   PubMed Web of Science ®Google Scholar
• CHIKOORE, H. & JURY, M.R. 2021. South African drought, deconstructed. Weather and Climate Extremes 33: 100334. doi:10.1016/j.wace.2021.100334.
   Web of Science ®Google Scholar
• CHUWEN, B.M., HOEKSEMA, S.D. & POTTER, I.C. 2009. The divergent environmental characteristics of permanently open, seasonally open, and normally closed estuaries of south-western Australia. Estuarine, Coastal and Shelf Science 85: 12–21.
   Web of Science ®Google Scholar
• CLAASSENS, L., BARNES, R.S.K., WASSERMAN, J., LAMBERTH, S.J., MIRANDA, N.A.F., VAN NIEKERK, L. & ADAMS, J.B. 2020. Knysna Estuary health: ecological status, threats and options for the future. African Journal of Aquatic Science 45: 65–82.
   Web of Science ®Google Scholar
• COOPER, J.A.G. 1989. Fairweather versus flood sedimentation in Mhlanga Lagoon, Natal: implications for environmental management. South African Journal of Geology 92: 279–294.
   Google Scholar
• COOPER, J.A.G. 2001. Geomorphological variability among microtidal estuaries from the wave-dominated South African coast. Geomorphology 40: 99–122.
   Web of Science ®Google Scholar
• COOPER, J.A.G. 2002. The role of extreme floods in estuary-coastal behaviour: contrasts between river- and tide-dominated microtidal estuaries. Sedimentary Geology 150: 123–137.
   Web of Science ®Google Scholar
• COOPER, J.A.G., MASON, T.R., REDDERING, J.S.V. & ILLENBERGER, W.K. 1990. Geomorphological effects of catastrophic flooding on a small subtropical estuary. Earth Surface Processes and Landforms 15: 25–41.
   Web of Science ®Google Scholar
• COOPER, A., WRIGHT, I. & MASON, T. 1999. Geomorphology and sedimentology. In Allanson, B. & Baird, D. (Eds.) Estuaries of South Africa. Cambridge, Cambridge University Press. pp. 5–25.
   Google Scholar
• DALRYMPLE, R.W., ZAITLIN, B.A. & BOYD, R. 1992. Estuarine facies models: conceptual basis and stratigraphic implications. Journal of Sedimentary Petrology 62: 1130–1146.
   Web of Science ®Google Scholar
• DEPARTMENT OF ENVIRONMENT, FORESTRY AND FISHERIES (DEFF). 2021. South Africa’s National Biodiversity Framework 2019–2024. DEFF, Pretoria.
   Google Scholar
• DUVAIL, S., HAMERLYNCK, O., PARON, P., HERVÉ, D., NYINGI, W.D. & LEONE, M. 2017. The changing hydro-ecological dynamics of rivers and deltas of the Western Indian Ocean: Anthropogenic and environmental drivers, local adaptation, and policy response. Comptes Rendus Geoscience 349: 269–279.
   Web of Science ®Google Scholar
• FAGHERAZZI, S., EDMONDS, D.A., NARDIN, W., LEONARDI, N., CANESTRELLI, A., FALCINI, F., JEROLMACK, D.J., MARIOTTI, G., ROWLAND, J.C. & SLINGERLAND, R.L. 2015. Dynamics of river mouth deposits. Reviews of Geophysics 53: 642–672.
   Web of Science ®Google Scholar
• FATOKI, O.S., GOGWANA, P. & OGUNFOWOKAN, A.O. 2003. Pollution assessment in the Keiskamma River and in the impoundment downstream. Water SA 29: 183–187.
   Web of Science ®Google Scholar
• FERNANDES, M. & ADAMS, J. 2016. Quantifying the loss of and changes in estuary habitats in the uMkhomazi and Mvoti estuaries, South Africa. South African Journal of Botany 107: 179–187.
   Web of Science ®Google Scholar
• FLEMMING, B. & MARTIN, K. 2021. The Breede River estuary (Cape Province, South Africa): A historical perspective on hydrology, geomorphology and sedimentology. Geo-Marine Letters 41: 15. doi:10.1007/s00367-021-00686-8.
   Web of Science ®Google Scholar
• GARDEN, S.E. & GARLAND, G.G. 2005. Spit development in the Mdloti River estuary, KwaZulu-Natal. South African Journal of Geology 108: 257–270.
   Web of Science ®Google Scholar
• GARLAND, G. & MOLEKO, L. 2000. Geomorphological impacts of Inanda Dam on the Mgeni estuary, north of Durban, South Africa. Bulletin of Engineering Geology and the Environment 59: 119–126.
   Google Scholar
• GRANGE, N. & ALLANSON, B.R. 1995. The Influence of Freshwater Inflow on the Nature, Amount and Distribution of Seston in Estuaries of the Eastern Cape, South Africa. Estuarine, Coastal and Shelf Science 40: 403–420.
   Web of Science ®Google Scholar
• GRANGE, N., WHITFIELD, A.K., DE VILLIERS, C.J. & ALLANSON, B.R. 2000. The response of two South African east coast estuaries to altered river flow regimes. Aquatic Conservation: Marine and Freshwater Ecosystems 10: 155–177.
   Web of Science ®Google Scholar
• GREEN, A., COOPER, J.A.G. & LEVIEUX, A. 2013. Unusual barrier/inlet behaviour associated with active coastal progradation and river-dominated estuaries. Journal of Coastal Research SI69: 35–45.
   Web of Science ®Google Scholar
• HAMANDAWANA, H., ATYOSI, Y. & BORNMAN, T.G. 2020. Multi-temporal reconstruction of long-term changes in land cover in and around the Swartkops River Estuary, Eastern Cape, South Africa. Environmental Monitoring and Assessment 192: 173. doi:10.1007/s10661-020-8136-2.
   PubMed Web of Science ®Google Scholar
• HARVEY, M.E., GIDDINGS, S.N., PAWLAK, G. & CROOKS, J.A. 2023. Hydrodynamic Variability of an Intermittently Closed Estuary over Interannual, Seasonal, Fortnightly, and Tidal Timescales. Estuaries and Coasts 46: 84–108. doi:10.1007/s12237-021-01014-0.
   Web of Science ®Google Scholar
• ISLA, F.I. 2008. ENSO-dominated estuaries of Buenos Aires: The interannual transfer of water from Western to Eastern South America. Global and Planetary Change 64: 69–75.
   Web of Science ®Google Scholar
• JURY, M.R. 2015. Factors contributing to a decadal oscillation in South African rainfall. Theoretical and Applied Climatology 120: 227–237.
   Web of Science ®Google Scholar
• JURY, M.R. 2016. Climate influences on Vaal River flow. Water SA 42: 232–242.
   Web of Science ®Google Scholar
• KENNEDY, D.M., MCSWEENEY, S.L., MARIANI, M. & ZAVADIL, E. 2020. The geomorphology and evolution of intermittently open and closed estuaries in large embayments in Victoria, Australia. Geomorphology 350: 106892. doi:10.1016/j.geomorph.2019.106892.
   Web of Science ®Google Scholar
• KNIGHT, J. & BURNINGHAM, H. 2021. The morphodynamics of transverse dunes on the coast of South Africa. Geo-Marine Letters 41: 47. doi:10.1007/s00367-021-00717-4.
   Web of Science ®Google Scholar
• LUBKE, R.A. & WEBB, C. 2016. The interaction between the dunes systems and the lower estuary at the Bushmans River Mouth, Eastern Cape over the past 60 years. South African Journal of Botany 107: 148–159.
   Web of Science ®Google Scholar
• MAGORO, M.L., PERISSINOTTO, R., WOOLDRIDGE, T.H. & WHITFIELD, A.K. 2020. Micro-estuaries and micro-outlets as incipient estuarine systems – Does size and coastal connectivity count? Science of the Total Environment 703: 134707. doi:10.1016/j.scitotenv.2019.134707.
   PubMed Web of Science ®Google Scholar
• MAHLALELA, P.T., BLAMEY, R.C., HART, N.C.G. & REASON, C.J.C. 2020. Drought in the Eastern Cape region of South Africa and trends in rainfall characteristics. Climate Dynamics 55: 2743–2759.
   PubMed Web of Science ®Google Scholar
• MARKER, M.E. 2000. A descriptive account of sand movement in the Knysna Estuary. Transactions of the Royal Society of South Africa 55: 129–139.
   Web of Science ®Google Scholar
• MARKER, M.E. 2004. Changes in the Salt River, tributary to the Knysna estuary, South Africa: 1936–1998. South African Geographical Journal 86: 131–140.
   Google Scholar
• MARKULL, K., LENCART E SILVA, J.D., SIMPSON, J.H. & DIAS, J.M. 2014. The influence of the Maputo and Incomati rivers on the mixing and outflow of freshwater from Maputo Bay (Mozambique). Journal of Coastal Research SI70: 580–585.
   Web of Science ®Google Scholar
• McSWEENEY, S.L., KENNEDY, D.M. & RUTHERFURD, I.D. 2018. The daily-scale entrance dynamics of intermittently open/closed estuaries. Earth Surface Processes and Landforms 43: 791–807.
   Web of Science ®Google Scholar
• McSWEENEY, S.L., KENNEDY, D.M., RUTHERFURD, I.D. & STOUT, J.C. 2017. Intermittently Closed/Open Lakes and Lagoons: Their global distribution and boundary conditions. Geomorphology 292: 142–152.
   Web of Science ®Google Scholar
• MORANG, A., ROSATI, J.D. & KING, D.B. 2013. Regional sediment processes, sediment supply, and their impact on the Lousiana coast. Journal of Coastal Research SI63: 141–165.
   Web of Science ®Google Scholar
• MORTON, R.A., CLIFTON, H.E., BUSTER, N.A., PETERSON, R.L. & GELFENBAUM, G. 2007. Forcing of large-scale cycles of coastal change at the entrance to Willapa Bay, Washington. Marine Geology 246: 24–41.
   Web of Science ®Google Scholar
• NDHLEVE, S., NAKIN, M.D.V. & LONGO-MBENZA, B. 2017. Impacts of supplemental irrigation as a climate change adaptation strategy for maize production: a case of the Eastern Cape Province of South Africa. Water SA 43: 222–228.
   Web of Science ®Google Scholar
• NGUYEN, P., SHEARER, E.J., TRAN, H., OMBADI, M., HAYATBINI, N., PALACIOS, T., HUYNH, P., BRAITHWAITE, D., UPDEGRAFF, G., HSU, K., KULIGOWSKI, B., LOGAN, W.S. & SOROOSHIAN, S. 2019. The CHRS Data Portal, an easily accessible public repository for PERSIANN global satellite precipitation data. Scientific Data 6: 180296. doi:10.1038/sdata.2018.296.
   PubMed Web of Science ®Google Scholar
• OWOLABI, S.T., MADI, K. & KALUMBA, A.M. 2021. Comparative evaluation of spatio-temporal attributes of precipitation and streamflow in Buffalo and Tyume Catchments, Eastern Cape, South Africa. Environment, Development and Sustainability 23: 4236–4251.
   Web of Science ®Google Scholar
• OWOLABI, S.T., MADI, K., KALUMBA, A.M. & ALEMAW, B.F. 2020. Assessment of recession flow variability and the surficial lithology impact: a case study of Buffalo River catchment, Eastern Cape, South Africa. Environmental Earth Sciences 79: 187. doi:10.1007/s12665-020-08925-4.
   Web of Science ®Google Scholar
• PFAFF, M.C., HART-DAVIS, M., SMITH, M.E. & VEITCH, J. 2022. A new model-based coastal retention index (CORE) identifies bays as hotspots of retention, biological production and cumulative anthropogenic pressures. Estuarine, Coastal and Shelf Science 273: 107909. doi:10.1016/j.ecss.2022.107909.
   Web of Science ®Google Scholar
• PHILLIPS, J.D. & SLATTERY, M.C. 2006. Sediment storage, sea level, and sediment delivery to the ocean by coastal plain rivers. Progress in Physical Geography 30: 513–530.
   Web of Science ®Google Scholar
• PILLAY, S., LUTCHMIAH, J., GENGAN, R.M. & LINDSAY, P. 2003. Morphology and sediment dynamics of the ephemeral Mfolozi estuary, KwaZulu-Natal, South Africa. South African Geographical Journal 85: 158–163.
   Google Scholar
• POEPPL, R.E., COULTHARD, T., KEESSTRA, S.D. & KEILER, M. 2019. Modeling the impact of dam removal on channel evolution and sediment delivery in a multiple dam setting. International Journal of Sediment Research 34: 537–549.
   Web of Science ®Google Scholar
• ROBERTS, M.J. 2010. Coastal currents and temperatures along the eastern region of Algoa Bay, South Africa, with implications for transport and shelf–bay water exchange. African Journal of Marine Science 32: 145–161.
   Web of Science ®Google Scholar
• ROFFE, S.J., FITCHETT, J.M. & CURTIS, C.J. 2019. Classifying and mapping rainfall seasonality in South Africa: a review. South African Geographical Journal 101: 158–174.
   Web of Science ®Google Scholar
• ROFFE, S.J., FITCHETT, J.M. & CURTIS, C.J. 2021. Quantifying rainfall seasonality across South Africa on the basis of the relationship between rainfall and temperature. Climate Dynamics 56: 2431–2450.
   Web of Science ®Google Scholar
• SCHUMANN, E.H. 2021. Floods, sedimentation and tidal exchanges in the Keurbooms Estuary, South Africa. Geo-Marine Letters 41: 34. doi:10.1007/s00367-021-00709-4.
   Web of Science ®Google Scholar
• SHAWLER, J.L., HEIN, C.J., OBARA, C.A., ROBBINS, M.G., HUOT, S. & FENSTER, M.S. 2021. The effect of coastal landform development on decadal-to millennial-scale longshore sediment fluxes: Evidence from the Holocene evolution of the central mid-Atlantic coast, USA. Quaternary Science Reviews 267: 107096. doi:10.1016/j.quascirev.2021.107096.
   Web of Science ®Google Scholar
• SINCLAIR, S.J., BATPUREV, K. & KOHOUT, M. 2022. Considering vegetation flood tolerance in estuary opening decisions. Ocean and Coastal Management 220: 106071. doi:10.1016/j.ocecoaman.2022.106071.
   Web of Science ®Google Scholar
• SINGLETON, A.T. & REASON, C.J.C. 2006. Numerical simulations of a severe rainfall event over the Eastern Cape coast of South Africa: sensitivity to sea surface temperature and topography. Tellus A: Dynamic Meteorology and Oceanography 58: 335–367.
   Web of Science ®Google Scholar
• SMITH, A.M., BUNDY, S.C. & COOPER, J.A.G. 2016. Apparent dynamic stability of the southeast African coast despite sea level rise. Earth Surface Processes and Landforms 41: 1494–1503.
   Web of Science ®Google Scholar
• STRACHAN, K.L., FINCH, J.M., HILL, T. & BARNETT, R.L. 2014. A late Holocene sea-level curve for the east coast of South Africa. South African Journal of Science 110: 0198. doi:10.1590/sajs.2014/20130198.
   Web of Science ®Google Scholar
• ULLAH, A., POHL, B., PERGAUD, J., DIEPPOIS, B. & ROUAULT, M. 2022. Intraseasonal descriptors and extremes in South African rainfall. Part I: Summer climatology and statistical characteristics. International Journal of Climatology 42: 4538–4563.
   Web of Science ®Google Scholar
• WARRICK, J.A. 2020. Littoral Sediment From Rivers: Patterns, Rates and Processes of River Mouth Morphodynamics. Frontiers in Earth Science 8: 355. doi:10.3389/feart.2020.00355.
   Web of Science ®Google Scholar
• WHITFIELD, A.K. 1992. A characterization of Southern African estuarine systems. Southern African Journal of Aquatic Science 18: 89–103.
   Google Scholar
• WHITFIELD, A.K., ADAMS, J.B., BATE, G.C., BEZUIDENHOUT, K., BORNMAN, T.G., COWLEY, P.D., FRONEMAN, P.W., GAMA, P.T., JAMES, N.C., MACKENZIE, B. & RIDDIN, T. 2008. A multidisciplinary study of a small, temporarily open/closed South African estuary, with particular emphasis on the influence of mouth state on the ecology of the system. African Journal of Marine Science 30: 453–473.
   Web of Science ®Google Scholar
• WHITFIELD, A. & BATE, G. 2007. A review of information on temporarily open/closed estuaries in the warm and cool temperate biogeographic regions of South Africa, with particular emphasis on the influence of river flow on these systems. Water Research Commission Report, No 1581/1/07, WRC, Pretoria.
   Google Scholar
• WHITFIELD, A.K., BATE, G.C., ADAMS, J.B., COWLEY, P.D., FRONEMAN, P.W., GAMA, P.T., STRYDOM, N.A., TALJAARD, S., THERON, A.K., TURPIE, J.K., VAN NIEKERK, L. & WOOLDRIDGE, T.H. 2012. A review of the ecology and management of temporarily open/closed estuaries in South Africa, with particular emphasis on river flow and mouth state as primary drivers of these systems. African Journal of Marine Science 34: 163–180.
   Web of Science ®Google Scholar
• WRIGHT, C.I. & MASON, T.R. 1993. Management and sediment dynamics of the St. Lucia Estuary mouth, Zululand, South Africa. Environmental Geology 22: 227–241.
   Web of Science ®Google Scholar
• ZENGENI, R., KAKEMBO, V. & NKONGOLO, N. 2016. Historical rainfall variability in selected rainfall stations in Eastern Cape, South Africa. South African Geographical Journal 98: 118–137.
   Web of Science ®Google Scholar