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ATLAS REPORT

Country report: Guinea

Generated 15 October 2026, 02:46 from live Atlas data

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Executive summary

Atlas holds 219,456 mapped features and 37,971 observations in 25 datasets. The mapped mangrove canopy covers 226,706 ha in 11,330 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.176 ha, while patches of 10 ha or more hold 97.4% of the area. 0 ha (0.0%) lies within 10 km of the LAPSSET development footprint.

Single mapping epoch (2019). Areas are geodesic hectares recalculated from geometry.

Species & formations

FormationPolygonsArea (ha)ShareMean patch (ha)
Mangrove11,330226,706.3100.0%20.01
Shannon evenness by area: 0.00

Pressure: LAPSSET and villages

Mangrove ha by distance from LAPSSET

Mangrove ha by distance from villages

Data quality

DatasetFeaturesRepairedScore
Global Mangrove Watch: mangrove extent 2020, Guinea12,7820100
Global Mangrove Watch: mangrove extent 1996, Guinea10,0560100
Global Mangrove Watch: mangrove extent 2007, Guinea10,6210100
Global Mangrove Watch: mangrove extent 2010, Guinea9,6430100
Global Mangrove Watch: mangrove extent 2015, Guinea9,7150100
Global Mangrove Watch v4.1: mangrove extent 2025, Guinea14,1420100
Global Mangrove Watch v4.1: mangrove extent 2020, Guinea11,3300100
Global Mangrove Watch v4.1: mangrove extent 2015, Guinea10,9490100
Global Mangrove Watch v4.1: mangrove extent 2010, Guinea8,6590100
Global Mangrove Watch v4.1: mangrove extent 2005, Guinea8,4650100
Global Mangrove Watch v4.1: mangrove extent 2000, Guinea8,5160100
Global Mangrove Watch v4.1: mangrove extent 1996, Guinea9,3930100
Fibre Cable Landing Stations126095
Power Plants (Power output MW)642095
Small airport1,979095
Dams2,586095
Districts6,0991395
World Database on Protected Areas7,438195
Electricity Transmission Network9,759095
Divisions17,649995
Irrigated Areas23,095195
Agro-Ecological Zones25,7911795
Carbon projects: Guinea2090
Seagrass (UNEP-WCMC): Guinea2090
Community and nature projects (UNDP): Guinea17090

Recommendations

High 12 of 9 themes have no data yet
Atlas holds no records for: Salt Marsh, Coastal Forests, Blue Carbon, Restoration Sites, Protected Areas & Landscapes, Land Use & Land Cover, People & Settlements, Wildlife & Habitats, Fire & Climate, Farming & Livelihoods, Mining, Oil & Licences, Surveys & Field Data. Seagrass and salt marsh would come from UNEP-WCMC global datasets; carbon projects from the Verra and Gold Standard registries; community projects from partner programmes.
Action: Ingest the planned sources listed in the Source Catalogue, starting with Global Mangrove Watch, UNEP-WCMC seagrass and salt marsh, and the carbon registries.
High Net loss of mangrove since 1996
Global Mangrove Watch maps 237,854 ha of mangrove in Guinea in 1996 and 223,589 ha in 2025: a net loss of 14,264 ha (-6.0%), about 492 ha per year. This is the net balance of total mapped area; gains and losses inside the country can cancel out, so real loss may be larger.
Action: Overlay consecutive epochs to locate where the losses occurred and check them against pressures such as clearing, ports and aquaculture.
High Licence terms to be confirmed for 10 datasets
Licence terms are being confirmed with the publisher. Atlas holds the data for scientific and internal use and shows the original attribution, but cannot grant bulk redistribution rights.
Action: Request written permission from WWF Kenya, KMFRI and KFS for redistribution and derivative products.
Medium Most polygons are very small, but most area sits in large stands
45.8% of the 11,330 mapped polygons are under 0.1 ha, yet patches of 10 ha or more hold 97.4% of all mangrove area. Management and monitoring effort should focus on the large stands, while the small-patch tail needs checking against satellite imagery.
Action: Prioritise field verification of large stands; review the sub-0.1 ha tail for mapping artefacts.

Datasets & sources

DatasetPublisherFeatures
Global Mangrove Watch: mangrove extent 2020, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)12,782
Global Mangrove Watch: mangrove extent 1996, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)10,056
Global Mangrove Watch: mangrove extent 2007, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)10,621
Global Mangrove Watch: mangrove extent 2010, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)9,643
Global Mangrove Watch: mangrove extent 2015, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)9,715
Global Mangrove Watch v4.1: mangrove extent 2025, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)14,142
Global Mangrove Watch v4.1: mangrove extent 2020, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)11,330
Global Mangrove Watch v4.1: mangrove extent 2015, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)10,949
Global Mangrove Watch v4.1: mangrove extent 2010, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)8,659
Global Mangrove Watch v4.1: mangrove extent 2005, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)8,465
Global Mangrove Watch v4.1: mangrove extent 2000, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)8,516
Global Mangrove Watch v4.1: mangrove extent 1996, GuineaGlobal Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA)9,393
Fibre Cable Landing StationsWWF Kenya126
Power Plants (Power output MW)WWF Kenya642
Small airportWWF Kenya1,979
DamsWWF Kenya2,586
DistrictsWWF Kenya6,099
World Database on Protected AreasWWF Kenya7,438
Electricity Transmission NetworkWWF Kenya9,759
DivisionsWWF Kenya17,649
Irrigated AreasWWF Kenya23,095
Agro-Ecological ZonesWWF Kenya25,791
Carbon projects: GuineaBerkeley Carbon Trading Project, University of California, Berkeley2
Seagrass (UNEP-WCMC): GuineaUN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) and Short FT2
Community and nature projects (UNDP): GuineaUnited Nations Development Programme (UNDP)17

Methods & limits

Areas and lengths are recomputed on the WGS 84 ellipsoid; units are harmonised (ha, m, %, UTC). The mapping is a single 2019 epoch; the source publishes no licence; field plots are a sample; scenario figures are illustrative assumptions. Cite the original publishers listed above. Full methods: Methodologies page.
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