Keightley J., von der Heyden S. & Jackson S. (2015) Introduced Pacific oysters Crassostrea gigas in South Africa: demographic change, genetic diversity and body condition African Journal of Marine Science 37: 89–98

Keywords: Cape rock oyster, habitat suitability, oyster invasivity, shell density

Hosking S. G. & Du Preez M. (1999) A cost-benefit analysis of removing alien trees in the Tsitsikamma mountain catchment South African Journal of Science 95: 442–448

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Human L. R. D., Adams J. B. & Allanson B. R. (2016) Insights into the cause of an Ulva lactuca Linnaeus bloom in the Knysna estuary South African Journal of Botany 107: 55–62

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Human L. R. D., Weitz R., Allanson B. R. & Adams J. B. (2020) Nutrient fluxes from sediments pose management challenges for the Knysna Estuary, South Africa African Journal of Aquatic Science 45: 1–9

Keywords: anoxic sediment, biodiversity, eutrophication, fine sands, organic content, pollutant retention, water quality

Infrustucture news (2017) Rooting out alien vegitation to save water Infrustucture news

Keywords: Drought

Govender D., Russell I. A., Randall R. M. & Zimmerman D. (2019) Outbreak of avian botulism and its effect on waterbirds in the Wilderness lakes, South Africa Koedoe 61:

Keywords: Botulism, wilderness lakes, waterbirds, disease, Ramsar, Wetlands

GRDM (2021) Garden Route Growth and Development Strategy Garden Route District Municipality (GRDM)

Keywords: 0

Gull K. (2012) Water supply in the Eastern Cape: an economic case study of land rehabilitation in the Kromme River Catchment University of Cape Town

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Harrison T. D. (2004) Physico-chemical characteristics of South African estuaries in relation to the zoogeography of the region Estuarine, Coastal and Shelf science 61: 73–87

Keywords: South Africa, biogeography, estuaries, physico-chemical parameters

Harvey A. (2019) An investigation of the pollution contribution of catchments surrounding the Knysna Estuary, with implication for stormwater management University of Cape Town

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