Life Sciences, Environment, general, Nature Conservation, Zoology, Hippocampus capensis, Freshwater & Marine Ecology, Zostera Capensis, Reno mattress, Habitat choice, Estuary, Animal Systematics/Taxonomy/Biogeography, Estuarine environments, Habitats, Estuarine dynamics, Estuaries, Fasteners, Holdfasts, Cages, Natural vegetation, Residential development, Veg...