The SGSSI Marine Protection Area: Guardian of the Southern Ocean

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The SGSSI Marine Protection Area: Guardian of the Southern Ocean

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The South Georgia & the South Sandwich Islands Marine Protection Area, situated southeast of the Falkland Islands, is a significant and meticulously managed marine conservation initiative created to protect the region's diverse marine life while allowing for sustainable and regulated fisheries.

South Georgia & the South Sandwich Islands Marine Protection Area: Safeguarding a Pristine Marine Ecosystem

The South Georgia & the South Sandwich Islands Marine Protection Area (SGSSI-MPA) represents one of the world's most significant and most carefully managed marine conservation initiatives. This expansive MPA was established to protect and conserve the region's rich and diverse marine life while allowing sustainable and regulated fisheries. Located approximately 1,300 kilometers (800 miles) southeast of the Falkland Islands, SGSSI encompasses the remote and rugged islands of South Georgia and the South Sandwich Islands along the border between the South Atlantic Ocean and the Scotia Sea.


SGSSI is a UK Overseas Territory known for its harsh, inhospitable environment and significant ecological value. The islands rise steeply from the sea, creating a landscape of rugged mountains, glaciers, and permanent ice and snow at higher elevations. Despite the challenging conditions, the seas around SGSSI harbor extraordinary biodiversity, making it a crucial area for marine conservation.

Geography and Environment

South Georgia

South Georgia is the largest island in the territory, characterized by its dramatic landscapes, including towering mountains and extensive glacial systems. The island's remote location and challenging terrain have contributed to its pristine condition, making it an ideal site for studying untouched ecosystems.

South Sandwich Islands

The South Sandwich Islands consist of a chain of smaller volcanic islands located about 740 kilometers (460 miles) southeast of South Georgia. These islands are part of an active volcanic arc along the Scotia Trench, adding to the region's unique geological and ecological significance.

Marine Ecosystem

The marine ecosystem around SGSSI is known for its high biodiversity. A study conducted between 2009 and 2011 revealed that South Georgia contains some of the highest levels of biodiversity among all ecosystems on Earth. However, the region's cold waters mean that any ecological damage would take a long time to repair, making conservation efforts particularly critical.

Establishment of the Marine Protection Area

Purpose and Scope

In 2012, the Government of South Georgia & the South Sandwich Islands established the SGSSI-MPA, covering the entire SGSSI Maritime Zone north of 60°S. This MPA spans 1,070,000 square kilometers (413,000 square miles), making it one of the largest marine protected areas globally. The primary objective of the SGSSI-MPA is to safeguard the region's unique marine life while allowing for sustainable and carefully managed fisheries.

Protection Measures

The SGSSI-MPA includes several stringent protection measures to ensure the conservation of its marine ecosystems:

  • Prohibition of Bottom Trawling: All bottom trawling is banned within the MPA to prevent damage to the seafloor habitats.
  • Bottom Fishing Restrictions: Bottom fishing is prohibited at depths less than 700 meters (2,300 feet) and greater than 2,250 meters (7,380 feet) to protect vulnerable benthic communities.
  • No-Take Zones: No-take zones, where all forms of fishing are banned, extend 12 nautical miles from the coast around South Georgia, Clerke Rocks, Shag and Black Rocks, and the South Sandwich Islands, totaling 20,431 square kilometers (7,888 square miles).
  • Benthic No-Take Zones: A network of benthic no-take zones has been established in areas previously popular for toothfish fishing to protect benthic habitats and spawning fish.
  • Krill Fishery Closures: The krill fishery is closed during the summer breeding season (November 1st to March 31st) to avoid competition between fisheries and krill-eating birds and marine mammals.

Ecological Importance

Biodiversity Hotspot

SGSSI is a biodiversity hotspot, home to numerous species of fish, birds, marine mammals, and invertebrates. The waters surrounding the islands provide essential breeding and feeding grounds for species such as tuna, sharks, sea turtles, and various marine mammals. The islands also host large colonies of seabirds, including albatrosses, petrels, and penguins.

Vulnerable Marine Ecosystem

The marine ecosystem around SGSSI is particularly vulnerable due to its cold water temperatures, which slow ecological recovery processes. This vulnerability underscores the importance of the MPA's stringent protection measures to maintain the health and resilience of these ecosystems.

Conservation and Sustainable Fisheries

Sustainable Fisheries Management

The SGSSI-MPA allows for sustainable and regulated fisheries, ensuring that fishing practices do not compromise the health of the marine ecosystem. The management plan includes monitoring and enforcement mechanisms to ensure compliance with MPA regulations compliance. Sustainable fisheries management helps balance the needs of the local economy with the imperative of conservation.

Scientific Research

The SGSSI-MPA is a vital area for scientific research, providing valuable insights into marine ecology, climate change impacts, and the effectiveness of conservation measures. The British Antarctic Survey maintains regional research stations, conducting studies on marine life, oceanography, and environmental changes. This research contributes to a global understanding of marine ecosystems and informs conservation strategies.


The South Georgia & the South Sandwich Islands Marine Protection Area is a testament to the commitment to preserving one of the world's most biodiverse and pristine marine environments. Through careful management and stringent protection measures, the SGSSI-MPA ensures the conservation of its unique ecosystems while allowing for the sustainable use of marine resources. Continued research and monitoring are essential to maintaining the ecological integrity of this remote and vital region.

SGSSI Marine Protected Area

Map depicting the area of the SGSSI Marine Protected Area.