1. DST/NRF Research Chair in Shallow Water Ecosystems, Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa
2. Department of Botany, Nelson Mandela University, Port Elizabeth, South Africa
3. South African Institute for Aquatic Biodiversity (SAIAB), Grahamstown, South Africa
4. Council for Scientific and Industrial Research (CSIR), Stellenbosch, South Africa