Sakumo Ramsar Site Wildlife Reserve: Mapped Coastal Landscapes in the Greater Accra Region

Sakumo Ramsar Site is best known for its seasonally fluctuating coastal lagoon, which supports dense concentrations of migratory and resident waterbirds within the Accra-Tema urban corridor. Its international recognition rests on the combination of a Ramsar Wetland designation and Important Bird Area status, drawing attention to its importance against a backdrop of intense urban and industrial expansion. The site is also distinctive for its blend of freshwater marsh, coastal savanna, and hyper-saline lagoon habitats in a single compact area. The cultural significance of the lagoon to indigenous communities in Tema New Town, where it is regarded as a fetish site, adds another layer of identity to its ecological reputation.

Recognition of the Sakumo wetlands as a site of international importance began in 1987, when the area was proposed for designation under the Ramsar Convention. Five years later, on 14 August 1992, it was formally gazetted as a Ramsar Site under reference number 565. By the time of its formal designation, roughly one third of the originally proposed area had already been converted to settlement use, foreshadowing the long-running tension between protection and urban growth that continues to shape the site.

Subsequent decades have brought both institutional engagement and escalating environmental pressure. The Wildlife Division of the Forestry Commission has served as the lead government agency, while bodies such as the Environmental Protection Agency of Ghana and the United Nations Environment Programme have supported initiatives including afforestation using treated wastewater to rehabilitate degraded wetland areas. Community groups such as the Sakumo Ramsar Conservation and Resource Users Association and Friends of Ramsar Sites have also played active roles, alongside neighboring communities including Sakumono, Klagon, and Nungua.

A Biodiversity Conservation and Local Community Development Project has further focused attention on habitat rehabilitation and the protection of the site's biological diversity. Despite these efforts, encroachment from developers, cattle grazing, and waste pollution have remained persistent challenges, making the ongoing history of Sakumo as much a story of conservation struggle as one of formal protection.

The Sakumo Ramsar Site occupies a low-lying coastal position in the Greater Accra Region, sandwiched between the Accra-Tema road and the Gulf of Guinea shoreline. Its defining landform is a shallow coastal lagoon whose surface area fluctuates sharply across the year, ranging from roughly 100 hectares in the dry season to about 350 hectares during the rainy months when the flood-plain becomes inundated. This seasonal contraction and expansion produces wide exposed mudflats and salt-encrusted margins during dry periods.

A narrow coastal road and embankment, linking Accra and Tema, separate the lagoon from the open sea, while an engineered sluice gates a small but permanent exchange between the lagoon and ocean waters. Surrounding the central lagoon are stretches of freshwater marsh, periodically flooded flood-plain largely devoid of vegetation, and patches of coastal savanna grassland dominated by salt-tolerant species such as Sesuvium portulacastrum. Rice, cassava, and assorted vegetable plots extend across parts of the catchable land, creating a mosaic of cultivated and natural surfaces.

The result is a compressed but varied coastal landscape in which open water, marsh, savanna, farmland, and urban edge meet within a relatively small radius, making the visual and ecological character of the site unusually diverse for its size.

Ecologically, Sakumo Ramsar Site is characterized by the interplay between freshwater, brackish, and hypersaline conditions that shift with seasonal rainfall. The flood-plain supports periodic inundation cycles, while pockets of freshwater marsh and coastal savanna grassland create transitional habitats between the open lagoon and drier adjacent land. The coastal savanna is dominated by Sesuvium portulacastrum and associated grass species adapted to the saline, seasonally wet conditions.

Land-use patterns within the broader catchment include rice, cassava, and small-scale vegetable cultivation, which links the natural vegetation mosaic with active agricultural landscapes. The combination of variable salinity, seasonal flooding, and mosaic habitat structure creates ecological gradients that are important for the fish, bird, and turtle populations the site supports. The narrow sluice-maintained link to the sea also gives the lagoon a semi-closed character that blends marine and inland aquatic influences.

These overlapping habitat types make Sakumo ecologically distinctive in the Ghanaian context, where most coastal lagoons have been more heavily modified or lost. Even amid urban encroachment, the site retains functional wetland vegetation and hydrological cycles that nurture its broader biodiversity.

The wildlife profile of Sakumo Ramsar Site is dominated by waterbirds, fish, and marine turtles that use its seasonally shifting lagoon and adjacent habitats. Past records document over seventy waterbird species, with seasonal totals reaching roughly 30,000 individuals. Among regular visitors and residents are common ringed plover, black tern, little egret, western reef heron, common tern, sandwich tern, and spotted redshank, while collared pratincole, Kittlitz's plover, and little tern have been recorded as breeding waterbirds. The black heron holds a special place in local tradition, regarded as sacred and protected by community taboos.

The lagoon's semi-closed character, with a permanent but limited connection to the sea, supports an unusually varied fish community. Sixteen fish species or genera have been documented and are typically grouped into freshwater seasonal visitors, permanent lagoon residents, juvenile marine fish that enter after rains, and short-stay marine visitors. Despite this richness, heavy overfishing has reduced catches over time and remains a key pressure on the fish fauna.

On the adjacent beach, marine turtles including olive ridley, green, and leatherback sea turtles have historically nested, adding a marine element to the site's broader wildlife significance. The cumulative importance of these bird, fish, and turtle populations led BirdLife International to recognize Sakumo as an Important Bird Area, reinforcing its profile as a significant coastal wildlife site within West Africa.

Conservation significance at Sakumo Ramsar Site stems from its formal recognition under the Ramsar Convention, its designation as an Important Bird Area by BirdLife International, and its position as one of the last major green spaces within the Accra-Tema Metropolitan Area. The site's value lies not only in its own ecological richness but also in the contrast it provides against a coastal zone experiencing some of the highest urban growth rates in Ghana.

Persistent conservation challenges include encroachment from urban and industrial development, land-take for settlement, sewage and domestic waste pollution from the catchment, cattle grazing in dry-season margins, and ongoing overfishing of the lagoon. These pressures are compounded by the fact that the area is government property that continues to be informally occupied and modified. The dry-season hyper-saline conditions that emerge when large parts of the lagoon evaporate further stress the system.

Conservation responses have involved multiple actors. The Wildlife Division of the Forestry Commission leads official management, while the Environmental Protection Agency of Ghana and the United Nations Environment Programme have launched afforestation efforts that use treated wastewater to reforest degraded wetland areas. A Biodiversity Conservation and Local Community Development Project has aimed to rehabilitate degraded zones and conserve biodiversity, complemented by community-based groups such as the Sakumo Ramsar Conservation and Resource Users Association and Friends of Ramsar Sites, alongside protective engagement from surrounding towns including Sakumono, Klagon, and Nungua.

The Sakumo Ramsar Site carries meaningful cultural weight for the communities around it, especially the indigenous people of Tema New Town, who regard the lagoon as a fetish, or sacred site. This local belief system shapes how the lagoon is treated and contributes to informal protections, such as the customary taboo that shields the black heron from harm.

Beyond sacred associations, the wetland is woven into everyday livelihoods of surrounding communities including Sakumono, Klagon, and Nungua, where farming, fishing, and recreation on or near the site are longstanding practices. The lagoon thus represents a meeting point between traditional cultural identity, local subsistence economies, and modern conservation frameworks. Community organizations affiliated with these towns have also become active stakeholders in the site's protection, reflecting an evolving local identity tied to defending this rare urban-adjacent wetland.

A coastal Ramsar wetland of international importance embedded directly within the Accra-Tema urban corridor. A dynamic seasonally fluctuating lagoon with open-water area shifting roughly between 100 and 350 hectares, producing both freshwater and hypersaline phases. A documented waterbird community of more than seventy species, with seasonal totals reaching about 30,000 birds, plus an Important Bird Area designation from BirdLife International.

The site also combines freshwater marsh, coastal savanna grassland, periodically inundated flood-plain, and a sea-facing beach with historical marine turtle nesting. Despite intense urban and industrial pressure, it remains one of the few surviving green areas within the Accra-Tema Metropolitan Area, and it carries cultural significance as a sacred lagoon for indigenous communities in Tema New Town.

Because the park profile is dominated by its hydrological and bird cycles rather than accessibility logistics, the most informative periods to consider are tied to the rainy and dry seasons. In the rainy season the open lagoon expands toward its larger footprint and surfaces become flooded, which can enhance waterbird activity and overall wetland character. The dry season, running roughly from August into March, sees large portions of the lagoon evaporate and produce hyper-saline conditions, reshaping both wildlife behavior and visible landscape.

For viewing different facets of the site, the wet phase offers the fullest expression of the lagoon as open water, while the dry phase exposes mudflats, saline margins, and behaviors associated with contracted habitat. Either period can therefore offer distinct perspectives on Sakumo's ecology, depending on whether birds, water coverage, or exposed lagoon bed is the focus of interest.