Guardians of the Reef: Empowering Indigenous Women to Protect Papua New Guinea’s Marine Heritage
Beneath the turquoise waters of Papua New Guinea lies an extraordinary diversity of marine life. Coral gardens, underwater reef walls and sheltered lagoons provide habitats for thousands of marine species, creating some of the most biologically diverse reef ecosystems on Earth.
Papua New Guinea forms part of the Coral Triangle, a region recognised internationally as the global centre of marine biodiversity.
For generations, coastal communities have depended on these waters for food, livelihoods and cultural identity. Traditional knowledge of fishing grounds, ocean currents, tides and seasonal changes has been passed down through families, forming an important part of community life.
Coral reefs also serve as natural coastal barriers, absorbing wave energy and helping protect shorelines from storms and erosion.
Despite their ecological and cultural importance, these environments face increasing pressure from rising ocean temperatures, pollution and destructive fishing practices.
Protecting them requires scientific understanding, community involvement and the preservation of traditional environmental knowledge.
In June and September 2026, Olgeta Foundation collaborated with Coral Sea Foundation and Sea Women of Melanesia (SWoM) to support two marine conservation expeditions in Papua New Guinea.
Using MV Golden Dawn as a maritime research support platform, the partnership brought scientific researchers, Indigenous women and coastal communities together to study and strengthen the protection of their marine environments.
Sea Women of Melanesia: Indigenous Women Leading Marine Conservation
Sea Women of Melanesia is a Papua New Guinea-based marine conservation organisation led by Indigenous Papua New Guinean women.
The initiative began with marine conservation training activities in Papua New Guinea in 2016 and has developed into a specialised program that equips Melanesian women with scientific knowledge and practical research skills.
Working closely with Coral Sea Foundation, the organisation helps women become active participants in marine research and in managing their communities' natural resources.
The Sea Women receive training in coral and fish identification, underwater photography, scientific reef surveys, GPS navigation and marine expedition planning.
These skills allow participants to document reef conditions, identify environmental changes and share scientific observations with local communities.
An important aspect of the program is its integration of traditional ecological knowledge with contemporary scientific methods.
Women who have grown up alongside the ocean often possess an understanding of local marine environments, including seasonal changes, fishing practices and the behaviour of marine species.
When combined with scientific training, this knowledge can contribute to more informed conservation decisions.
The program also helps create opportunities for women to participate in environmental leadership and share their expertise with younger generations.
Understanding Coral Reefs: The Science Behind Conservation
Coral reefs are living ecosystems built by colonies of tiny animals called coral polyps.
Many reef-building corals live in a close relationship with microscopic algae, which produce energy through photosynthesis. Over time, coral colonies develop complex limestone structures that provide shelter and feeding areas for fish and other marine organisms.
These ecosystems are highly sensitive to environmental changes.
Rising sea temperatures can cause coral bleaching, a process in which stressed corals lose the algae living within their tissues. If stressful conditions persist, bleaching can lead to widespread coral mortality.
Physical damage from destructive fishing practices can also destroy reef structures that have taken decades or centuries to develop.
To understand the condition of a reef, marine scientists conduct systematic underwater surveys.
One commonly used method involves establishing a transect — a measured line along which researchers record coral cover, fish species and other ecological characteristics.
Surveying the same locations over time allows researchers to compare results and identify changes in reef health.
Modern monitoring programs increasingly use underwater photography and artificial intelligence to analyse large collections of reef images.
ReefCloud, developed by the Australian Institute of Marine Science, uses machine learning to assist scientists in processing underwater photographs and identifying characteristics of coral communities.
These technologies can make reef monitoring more efficient while supporting consistent scientific methods.
For community conservation programs, access to these tools creates opportunities to build reliable environmental records that can inform future management decisions.
Gabagaba: Establishing a Scientific Baseline
In June 2026, Coral Sea Foundation and Sea Women of Melanesia conducted a four-day reef survey training expedition in the proposed Gabagaba Locally Managed Marine Area, Central Province.
Supported by Olgeta Foundation and MV Golden Dawn, the expedition included marine researchers, local fishermen and community representatives.
The team surveyed three locations: Lai Daeroa, Iuana and Lokoru Motu.
During the fieldwork, researchers established 10 permanent monitoring transects, each measuring 50 metres, and collected 708 geotagged underwater photographs for analysis using ReefCloud.
These records provide baseline information against which future observations can be compared.
At Lokoru Motu, the researchers observed extensive living coral cover and well-developed reef structure.
Other survey locations showed evidence of blast-fishing damage, highlighting the different environmental pressures affecting reefs within the proposed conservation area.
The expedition also provided practical training in GPS navigation, reef survey techniques, site identification and environmental data management.
Local fishermen participated alongside the Sea Women team, developing familiarity with methods that may support future community monitoring.
By establishing permanent research locations, the project created a foundation for assessing changes in coral cover and reef condition over time.
The findings provide an initial scientific picture of the surveyed reefs, while future monitoring will be necessary to determine long-term environmental trends.
Tunnung Island: Traditional Knowledge Meets Marine Science
In September 2026, the partnership continued with a ten-day marine science and conservation expedition to Tunnung Island, off the north-western coast of Lavongai in New Ireland Province.
Working with the local conservation initiative at Clement Anton's Place, Coral Sea Foundation and Sea Women of Melanesia brought together representatives from eight nearby island communities.
The expedition focused on marine biodiversity research, conservation education and strengthening community-led management of coastal resources.
One particularly significant feature of Tunnung Island is its traditional marine protection area.
For many years, the community has maintained a locally recognised no-fishing zone, sometimes described as a tambu area.
In Papua New Guinea and other parts of Melanesia, customary marine management practices have long been used to regulate access to fishing grounds and protect important marine resources.
Such practices may include temporary fishing closures, restrictions on particular activities or the protection of culturally significant marine areas.
Today, traditional approaches can complement modern conservation strategies, particularly through the development of Locally Managed Marine Areas (LMMAs).
An LMMA is a marine or coastal area where local communities take a leading role in establishing management rules and making decisions about resource use.
Depending on local circumstances, these measures can help protect breeding habitats, maintain marine biodiversity and support sustainable fisheries.
During the Tunnung expedition, conservation teams worked with community representatives to map LMMA boundaries and prepare documentation for submission to relevant Papua New Guinean authorities.
Participants also undertook practical marine science training, including underwater surveys, fish and coral identification, GPS navigation and the use of underwater cameras.
Within the established protected area, researchers recorded marine species including coral trout, Maori wrasse, large sweetlips and a shark.
These observations contribute to the scientific record of the area's biodiversity, although continued surveys are needed to evaluate population trends and long-term conservation outcomes.
The team also collected more than 40GB of aerial, terrestrial and underwater video footage, documenting the island's ecosystems and marine environments.
Inspiring the Next Generation
An important part of the Tunnung expedition was the involvement of students and teachers from Tunnung Permitted School.
The students joined the conservation team for guided snorkelling and marine education activities within the locally protected reef area.
For many young people in remote coastal communities, the ocean is part of everyday life. However, opportunities to explore it through formal scientific methods may be limited.
The activities introduced students to reef ecology, underwater observation and the importance of protecting marine habitats.
By observing coral communities and marine species directly, students could connect classroom learning with the environment surrounding their own island.
Working alongside Indigenous women trained in marine science also provided a practical example of how local knowledge and scientific skills can be combined.
These educational experiences can encourage curiosity, environmental awareness and future participation in community conservation.
The involvement of local schools is particularly valuable because long-term marine protection depends on knowledge being shared between generations.
MV Golden Dawn: Supporting Marine Research in Remote Waters
Marine research in Papua New Guinea presents considerable logistical challenges.
Many coral reefs and coastal communities are located far from major population centres, and access to suitable research sites often depends entirely on maritime transport.
Scientific fieldwork requires the safe movement of people, specialised equipment and supplies between sometimes widely separated locations.
Through MV Golden Dawn and its experienced crew, Olgeta Foundation provided maritime and logistical support for the Gabagaba and Tunnung expeditions.
The vessel served as a working platform for conservation teams, supporting access to survey locations and moving personnel and research equipment.
While Coral Sea Foundation and Sea Women of Melanesia led the scientific research, training and community conservation activities, Olgeta Foundation helped enable the field operations through its maritime capabilities.
The expeditions demonstrate how collaboration between organisations with complementary expertise can extend the reach of scientific and environmental initiatives in remote areas of Papua New Guinea.
Protecting the Ocean for Future Generations
The Gabagaba and Tunnung expeditions illustrate two complementary approaches to marine conservation.
At Gabagaba, scientific monitoring established baseline information that can support future assessment of reef conditions.
At Tunnung Island, research activities were integrated with traditional marine management, community participation and environmental education.
Across both expeditions, Indigenous women played an active role in scientific fieldwork, helping connect specialised research methods with local conservation priorities.
The results represent meaningful progress in building knowledge and practical conservation skills. Their long-term environmental value will depend on continued monitoring and effective community management.
A further expedition involving Coral Sea Foundation is planned for November 2026, continuing opportunities for collaboration in marine research and conservation.
For Olgeta Foundation, these initiatives reflect a commitment to scientific research, environmental conservation and cooperation with the communities who depend on Papua New Guinea's marine ecosystems.
The future of these reefs depends not only on scientific discovery, but also on the knowledge, participation and determination of the people who call these waters home.
By bringing together Indigenous leadership, modern science and practical maritime support, the partnership contributes to a stronger foundation for protecting Papua New Guinea's extraordinary marine heritage.
Acknowledgements
Olgeta Foundation acknowledges Coral Sea Foundation, Sea Women of Melanesia-PNG, Clement Anton's Place, participating community leaders and residents, Tunnung Permitted School, and the crew of MV Golden Dawn for their contributions to the expeditions.
Sources and References
The following sources were consulted in preparing this article:
Coral Sea Foundation — July 2026 Expedition ReportScientific findings from the Gabagaba reef survey expedition, including marine monitoring activities, research results and the involvement of Olgeta Foundation and MV Golden Dawn.
Sea Women of Melanesia — Marine Conservation TrainingInformation about marine scientific research methods, practical training programs and the development of conservation skills among Indigenous Melanesian women.
Sea Women of Melanesia — Community Conservation SupportInformation about community participation, locally managed marine areas (LMMAs) and the protection of marine ecosystems
through community-led conservation.
Sea Women of Melanesia — Expedition UpdatesUpdates relating to the Tunnung Island expedition, including participation by eight island communities, marine scientific activities and educational programs involving local schoolchildren.
Australian Institute of Marine Science — ReefCloudScientific information about the application of artificial intelligence and modern imaging technology in coral reef monitoring and analysis.
NOAA — Coral Reef EcosystemsEducational information about coral reef biology, marine biodiversity, environmental threats and the ecological importance of coral reef ecosystems.
Photography and Media Credits
Photographs and visual materials courtesy of Coral Sea Foundation.
Olgeta Foundation gratefully acknowledges Coral Sea Foundation for providing photographic material documenting the marine conservation expeditions, scientific research activities and community participation in Papua New Guinea.
Comments