Subregions- Antarctic Peninsula
 - Drake Passage
- east of the South Sandwich Islands
- Falkland Islands region
- Isla Hoste, Magallanes, Chile
- Isla Navarino region, Magallanes, Chile
- off the coast of Tierra del Fuego
- Scotia Sea
- South Georgia Island region
- South Georgia Rise
- South Sandwich Islands region
- South Shetland Islands
- southwestern Atlantic Ocean
- Tierra del Fuego
- Tierra del Fuego, Argentina
- Tierra del Fuego, Argentina region
- Tierra del Fuego, Magallanes, Chile
- Weddell Sea
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