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| Lac Azuei | |
|---|---|
| Name | Lac Azuei |
| Other names | Lac Duarte, Etang Saumâtre (Spanish: Lago del Azuéi) |
| Location | Haiti–Dominican Republic border |
| Type | saline lake |
| Inflow | ephemeral rivers, rainfall |
| Outflow | none (endorheic) |
| Basin countries | Haiti, Dominican Republic |
| Area | ~170 km2 |
| Max depth | ~10 m |
| Elevation | ~15 m |
Lac Azuei is the largest lake in Haiti and a principal saline lagoon on the island of Hispaniola. Positioned near the Haitian capital of Port-au-Prince and adjacent to the Dominican province of Elías Piña Province and Distrito Nacional, the lake occupies a tectonic and karst-influenced basin important for regional Biodiversity and cross-border land use interactions. The basin has been central to environmental studies by organizations such as United Nations Environment Programme and regional universities like the Université d'État d'Haïti.
The lake lies in the southwestern portion of Hispaniola within a rift-influenced trough associated with the Enriquillo-Plantain Garden fault zone, south of the Massif de la Selle and near the Plaine du Cul-de-Sac. It is bordered to the northeast by Haitian communes including Cayes-Jacmel and Pernier and to the southeast by Dominican municipalities such as Comendador and Baní. Topography around the basin shows influences from the Cordillera Central and the Baoruco Mountains, with nearby features including the saline flats of the Plateau Central and volcanic ridges linked to the Cayos and other Caribbean landforms. The lake sits at low elevation close to the Caribbean Sea and is connected in climatic terms to the trade winds and seasonal influences from the Intertropical Convergence Zone.
The Lac Azuei basin is an endorheic system fed by intermittent tributaries arising from the surrounding highlands including seasonal runoff from the Massif de la Hotte and ephemeral streams draining from the Massif du Nord. Surface inflow varies with the Atlantic hurricane season, influenced by cyclonic events such as Hurricane Jeanne and Hurricane Matthew that have altered water balance and sediment load. Because the lake has no permanent surface outflow, salinity is controlled by evaporation and subsurface seepage into karstified limestones associated with the regional Hispaniolan karst. Groundwater exchange involves aquifers studied by agencies including the U.S. Geological Survey and the Organization of American States. Historical water level changes have been recorded in Haitian archives and by researchers at institutions like the Smithsonian Institution.
The lake is a key habitat for migratory and resident birds, forming part of the flyways used by species documented by BirdLife International and listed in inventories by the Cornell Lab of Ornithology and the Royal Society for the Protection of Birds. Notable avifauna recorded include species comparable to those of the Caribbean such as pelicans, herons, and egrets referenced in regional checklists by the American Ornithological Society. The saline and brackish conditions support fish and invertebrate assemblages similar to those studied in other Caribbean lagoons by researchers from Universidad Autónoma de Santo Domingo and the Université Quisqueya. Riparian and marsh vegetation shows affinities with habitats described in field guides used by the National Audubon Society and botanical surveys from the Missouri Botanical Garden. The basin provides breeding and foraging grounds for species monitored under programs such as the Ramsar Convention reporting and regional conservation networks including the Caribbean Biodiversity Fund.
Human presence around the lake spans pre-Columbian times to colonial encounters involving Taíno populations, Spanish colonists under figures such as Diego Columbus, and French planters connected to the history of Saint-Domingue. The area figured in geopolitical arrangements reflected in treaties and conflicts like the Treaty of Basel and border negotiations between leaders of Haiti and the Dominican Republic. Rural communities around the lake maintain cultural practices linked to Haitian Creole traditions and Dominican campesino livelihoods, with religious and ceremonial life influenced by institutions such as Roman Catholic Church parishes and Vodou societies recorded by anthropologists from Université de Montréal and The New School. Oral histories preserved by local NGOs and archives like the Bibliothèque Nationale d'Haïti document land tenure, migration patterns, and artisanal fishing customs comparable to those in other Caribbean lacustrine societies.
Local economies depend on artisanal fisheries, salt extraction, and subsistence agriculture, activities studied by development agencies including the Inter-American Development Bank and World Bank. Markets in nearby urban centers such as Les Cayes and Port-au-Prince integrate lake products into broader supply chains connecting to ports like Port of Santo Domingo and Port-au-Prince International Airport. Tourism is limited but includes birdwatching, cultural tours, and eco-trips promoted by operators linked to networks like the Caribbean Tourism Organization and conservation-tourism initiatives funded by USAID and regional NGOs. Infrastructure projects by ministries such as Haiti’s Ministry of the Environment and the Dominican Ministerio de Medio Ambiente y Recursos Naturales have aimed to develop sustainable livelihoods while balancing cross-border coordination.
The Lac Azuei basin faces threats from erosion, sedimentation, agricultural runoff, and episodic pollution documented by studies from World Wildlife Fund and the International Union for Conservation of Nature. Deforestation in surrounding highlands involving areas like the Massif de la Hotte and Massif de la Selle exacerbates sediment loads, while unregulated extraction and water diversion mirror challenges addressed in reports by the United Nations Development Programme and Food and Agriculture Organization. Climate change impacts projected by the Intergovernmental Panel on Climate Change and regional climate centers foresee altered precipitation regimes and more intense storm events, affecting salinity and ecosystem resilience. Conservation responses include proposals for Ramsar designation, transboundary initiatives modeled on frameworks like the Large Marine Ecosystem programs, and community-based projects supported by NGOs such as Conservation International and the Nature Conservancy. Monitoring and research continue through collaborations with universities including Brown University, Université de Montréal, and Pontificia Universidad Católica Madre y Maestra to inform adaptive management and policy dialogues between Haitian and Dominican authorities.
Category:Lakes of Hispaniola