Aldabra Atoll: A Global Stronghold for Marine Biodiversity
Photo Courtesy of The Seychelles Islands Foundation
| July 17, 2026
Introduction
Originally designated as a Platinum-level Blue Park in 2019, Aldabra Atoll Special Reserve continues to demonstrate how strong protection, science-based management, and long-term stewardship can safeguard one of the world's most intact marine ecosystems.
Located in the Aldabra Islands Group of Seychelles in the Western Indian Ocean, Aldabra protects one of the largest raised coral atolls on Earth and encompasses globally important coral reefs, seagrass beds, mangroves, and deep-water habitats. Despite experiencing the global coral bleaching event of 2014–2017, the reserve has shown remarkable ecological resilience, with coral reefs continuing to recover while management, enforcement, and biodiversity outcomes remain strong. Guided by a new 2026–2036 management plan, strengthened surveillance partnerships, and expanding long-term monitoring, Aldabra continues to serve as a global model for effective marine conservation.
About Aldabra Atoll Special Reserve
Located in the Aldabra Islands Group in the Seychelles, Aldabra Atoll Special Reserve protects 2,559 km² of one of the world's largest raised coral atolls. The reserve encompasses extensive coral reefs, seagrass meadows, mangrove forests, lagoons, and deep-water habitats. Most of the reserve falls within a fully protected Conservation Zone, while carefully managed tourism, transportation, and Food Security Zones help balance conservation with sustainable use.
Aldabra is internationally recognized for its extraordinary biodiversity and ecological importance. Designated as a UNESCO World Heritage Site, the atoll supports globally significant populations of giant tortoises, green and hawksbill turtles, dugongs, spinner dolphins, seabirds, and a rich diversity of reef fish and coral species. Its marine habitats also provide critical feeding, nesting, and nursery grounds for numerous threatened species, earning international recognition as an Important Marine Mammal Area and part of the IOSEA Marine Turtle Site Network.
Managed by the Seychelles Islands Foundation, Aldabra has remained one of the world's most intact marine ecosystems thanks to decades of strong protection, effective management, and long-term scientific monitoring. First awarded Platinum Blue Park status in 2019, the reserve continues to demonstrate the highest standard of marine conservation through adaptive management, consistent enforcement, and an enduring commitment to protecting its exceptional biodiversity.
Highlights from the Five-Year Review
The five-year review confirmed that Aldabra Atoll Special Reserve continues to rank among the world's most effectively protected marine ecosystems. Long-term ecological monitoring shows that coral reefs remain in excellent condition despite the global bleaching event of 2014–2017, with many reef communities demonstrating strong natural recovery. The reserve also continues to support healthy populations of reef fish, sharks, turtles, marine mammals, and seabirds, reflecting the benefits of decades of consistent protection and minimal human disturbance.
Effective management remains a key strength of the reserve. The review highlighted strong governance by the Seychelles Islands Foundation, supported by regular biodiversity monitoring, adaptive management, and continued collaboration with the Seychelles Coast Guard to strengthen surveillance and enforcement across the reserve. An updated 2026–2036 Management Plan further reinforces this long-term approach by establishing clear conservation objectives, monitoring priorities, and strategies for addressing emerging challenges, including climate change, invasive species, and increasing tourism pressure.
The review also recognized Aldabra's continued investment in scientific research. Ongoing monitoring of coral reefs, fish communities, turtles, seabirds, and other key species provides the evidence needed to evaluate ecosystem health and guide management decisions. Together, these efforts demonstrate how strong protection, science-based management, and long-term stewardship have enabled Aldabra to remain one of the most intact and resilient marine ecosystems in the Western Indian Ocean.
Community and Stakeholder Engagement
Although Aldabra Atoll has no permanent human population, collaboration remains central to its long-term protection. The Seychelles Islands Foundation works closely with the Government of Seychelles, the Seychelles Coast Guard, researchers, conservation organizations, and international partners to strengthen management, enforcement, and scientific research across the reserve.
Scientific collaboration plays a particularly important role. Researchers from around the world contribute to long-term monitoring programs that track coral reefs, fish communities, seabirds, marine turtles, giant tortoises, and other key species. These partnerships provide the scientific evidence needed to evaluate ecosystem health, understand emerging threats, and guide adaptive management decisions.
Education and outreach also remain important priorities. Through school programs, public engagement initiatives, and partnerships with universities and conservation organizations, the Seychelles Islands Foundation helps raise awareness of Aldabra's global significance while inspiring future generations of conservation leaders. Together, these collaborations ensure that Aldabra's protection extends beyond the boundaries of the reserve and continues to support marine conservation efforts both nationally and internationally.
Award Status Update
The Blue Park Award is not permanent. Every five years, Blue Parks undergo a rigorous review to ensure that protections remain strong, management remains effective, and biodiversity outcomes continue to meet the science-based criteria of the Blue Park Standard.
Following the completion of its five-year review, Aldabra Atoll Special Reserve has successfully retained its Platinum-level Blue Park designat ion. The renewal reflects decades of effective protection, science-based management, and long-term ecological monitoring. Supported by an updated 2026–2036 Management Plan, strengthened surveillance partnerships, and continued research, the reserve remains one of the world's most intact and resilient marine ecosystems
Looking Ahead
With a new 2026–2036 Management Plan now in place, Aldabra Atoll Special Reserve is well positioned to build on decades of conservation success. Priorities include strengthening biodiversity monitoring, improving climate resilience, enhancing biosecurity measures, and continuing research to better understand ecosystem change and guide adaptive management.
The Seychelles Islands Foundation will continue working with government agencies, researchers, and international partners to strengthen surveillance, scientific monitoring, and conservation management. Together, these efforts will help ensure that Aldabra remains one of the world's most intact and effectively protected marine ecosystems for generations to come.
Conclusion
Aldabra Atoll Special Reserve demonstrates the value of sustained, long-term protection. Decades of effective management, strong governance, and science-based decision-making have helped preserve one of the world's most intact marine ecosystems while supporting remarkable biodiversity and resilient coral reefs.
As a Platinum Blue Park, Aldabra continues to set a global benchmark for effective marine conservation. Its five-year review shows that when strong protections are maintained, backed by scientific monitoring and adaptive management, marine ecosystems can continue to thrive despite an increasingly uncertain future.
