Atlas · Madagascar
/
Seagrass
THEMATIC MODULE
Seagrass
Seagrass datasets, maps, observations and indicators.
Records
7,136
Meadows and point records
Countries
25
With records on the map
Surveyed area
536,900 ha
Calculated from the polygons
Point records
720
Recorded, area not mapped
Surveyed area by country
Hectares of mapped polygons (broad regional estimates left out)
About this layer
UNEP-WCMC global seagrass layer, version 7.1 (2021), compiled from many surveys of different dates. It shows what has been recorded, not everything that exists: a gap on the map does not mean there is none.
View and cite only. The publisher's licence does not allow this data to be downloaded or redistributed, so downloads are switched off for everyone.
58 polygons are very broad regional estimates (thousands of square kilometres). They are drawn, marked as broad in their popup, and left out of the area figures.
All countries on the map Source catalogueBy country
Open any country's layer on the map| Country | Records | Mapped meadows | Surveyed area (ha) | Point records | |
|---|---|---|---|---|---|
| Tunisia | 6,057 | 5,974 | 498,824 | 83 | Map → |
| Kenya | 376 | 218 | 17,539 | 158 | Map → |
| Mozambique | 179 | 46 | 8,241 | 132 | Map → |
| Tanzania | 153 | 20 | 4,577 | 133 | Map → |
| Algeria | 18 | 17 | 4,048 | 1 | Map → |
| Morocco | 16 | 6 | 2,170 | 10 | Map → |
| Libya | 86 | 64 | 1,152 | 22 | Map → |
| Egypt | 94 | 13 | 349 | 61 | Map → |
| Eritrea | 41 | 0 | 0 | 31 | Map → |
| South Africa | 26 | 0 | 0 | 26 | Map → |
| Madagascar | 25 | 0 | 0 | 17 | Map → |
| Seychelles | 14 | 0 | 0 | 14 | Map → |
| Sudan | 10 | 0 | 0 | 8 | Map → |
| Mauritania | 9 | 0 | 0 | 9 | Map → |
| Mauritius | 9 | 0 | 0 | 9 | Map → |
| Senegal | 5 | 0 | 0 | 3 | Map → |
| Togo | 4 | 0 | 0 | 0 | Map → |
| Ghana | 4 | 0 | 0 | 0 | Map → |
| Guinea | 2 | 0 | 0 | 0 | Map → |
| Angola | 2 | 0 | 0 | 0 | Map → |
| Nigeria | 2 | 0 | 0 | 0 | Map → |
| Comoros | 1 | 0 | 0 | 0 | Map → |
| Guinea-Bissau | 1 | 0 | 0 | 1 | Map → |
| Western Sahara | 1 | 0 | 0 | 1 | Map → |
| São Tomé and Principe | 1 | 0 | 0 | 1 | Map → |
Datasets in this module
| Dataset | Source | Features | Observations | Imported |
|---|---|---|---|---|
| Seagrass (UNEP-WCMC): Tunisia | UNEP-WCMC global seagrass and saltmarsh... | 6,057 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Kenya | UNEP-WCMC global seagrass and saltmarsh... | 376 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Mozambique | UNEP-WCMC global seagrass and saltmarsh... | 179 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Tanzania | UNEP-WCMC global seagrass and saltmarsh... | 153 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Egypt | UNEP-WCMC global seagrass and saltmarsh... | 94 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Libya | UNEP-WCMC global seagrass and saltmarsh... | 86 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Eritrea | UNEP-WCMC global seagrass and saltmarsh... | 41 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): South Africa | UNEP-WCMC global seagrass and saltmarsh... | 26 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Madagascar | UNEP-WCMC global seagrass and saltmarsh... | 25 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Algeria | UNEP-WCMC global seagrass and saltmarsh... | 18 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Morocco | UNEP-WCMC global seagrass and saltmarsh... | 16 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Seychelles | UNEP-WCMC global seagrass and saltmarsh... | 14 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Sudan | UNEP-WCMC global seagrass and saltmarsh... | 10 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Mauritania | UNEP-WCMC global seagrass and saltmarsh... | 9 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Mauritius | UNEP-WCMC global seagrass and saltmarsh... | 9 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Senegal | UNEP-WCMC global seagrass and saltmarsh... | 5 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Togo | UNEP-WCMC global seagrass and saltmarsh... | 4 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Ghana | UNEP-WCMC global seagrass and saltmarsh... | 4 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Angola | UNEP-WCMC global seagrass and saltmarsh... | 2 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Guinea | UNEP-WCMC global seagrass and saltmarsh... | 2 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Nigeria | UNEP-WCMC global seagrass and saltmarsh... | 2 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): São Tomé and Principe | UNEP-WCMC global seagrass and saltmarsh... | 1 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Comoros | UNEP-WCMC global seagrass and saltmarsh... | 1 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Western Sahara | UNEP-WCMC global seagrass and saltmarsh... | 1 | 0 | 2026-10-13 |
| Seagrass (UNEP-WCMC): Guinea-Bissau | UNEP-WCMC global seagrass and saltmarsh... | 1 | 0 | 2026-10-13 |