Downs, Colleen Thelma.O'Brien, Gordon Craig.Wepener, Victor.Vezi, Madonna Sduduzo.2019-12-102019-12-1020172017https://researchspace.ukzn.ac.za/handle/10413/16619Doctor of Philosophy in Biological Sciences. University of KwaZulu-Natal, Pietermaritzburg 2017.Abstract available in PDF file.enTheses - Biological sciences.Ecological risk assessment - South Africa.Estuarine area conservation - South Africa - KwaZulu-Natal.Estuarine ecology - South Africa.Zooplankton.Estuaries.Land use activities.Macrozoobenthos.Regional ecological risk assessment.Zooplankton.Use of invertebrates to evaluate the threat of water resource use on the wellbeing of selected river dominated estuaries in KwaZulu-Natal, South Africa.Thesis