1. Department of Fisheries and Ocean Sciences, University of Namibia, Henties Bay, Namibia
2. Department of Environmental Studies, University of Namibia, Windhoek, Namibia
3. Faculty of Agriculture and Natural Resources, University of Namibia, Windhoek, Namibia
4. Department of Environment and Geography, and York Environmental Sustainability Institute, University of York, York, UK
5. Department of Environment and Geography, University of York, York, UK