Endemic Clanwilliam sawfin (Barbus serra) measured as part of the Northern Cape Department of Environmental Affairs (DENC) freshwater fish survey. Oorlogskloof Nature Reserve, Northern Cape, South Africa. The indigenous fish collected are measured and released, but the alien fish species are killed. March 2014.

- Image ID: W7XD06
Endemic Clanwilliam sawfin (Barbus serra) measured as part of the Northern Cape Department of Environmental Affairs (DENC) freshwater fish survey. Oorlogskloof Nature Reserve, Northern Cape, South Africa. The indigenous fish collected are measured and released, but the alien fish species are killed. March 2014.
Nature Picture Library / Alamy Stock Photo
Image ID: W7XD06