South Africa’s marine realm is globally unique because of the two major ocean currents that meet here. The cold, slow-moving Benguela and the warm, fast-flowing Agulhas currents create a special environment that supports high levels of biodiversity. Over 13,000 marine species are currently known to live in these waters. About 30% of these are endemic, meaning they occur nowhere else.
Biodiversity metrics (the number or abundance of species) are dominated by invertebrates such as sponges, bivalves and crustaceans. These are usually small, which makes them adaptable and versatile. In terms of numbers, invertebrates make up a vast majority of marine life.
I have been involved in marine biodiversity research for the last 10 years and have worked with teams of researchers, biology students and citizen scientists from across the country. I have also been involved in the naming and classification of organisms.
