Mangroves in Madagascar

Madagascar, Majunga
Mangroves are an important piece of the ecosystem that offers much more than we can imagine. From being a great habitat for wildlife species, being great protection for coasts, and bringing an economical added value to the local population, it also is one of the greatest sources of carbon sequestration. The total area of mangrove forest in Madagascar covers about 20% of African mangroves and 2% of the world's mangroves. However, the mangrove forests of Bombetoka Bay suffered a 34% loss between 1990 and 2000 (Report on the state of mangroves in...Read more
143649
trees planted
91935.36
tonnes of CO₂
absorbed during lifetime

Location

Facts & figures

Socio-economic impact

Socio-economic impact

Socio-economic impact

  • Supporting the livelihoods of over 600 fishing families, sustaining artisanal fishing and securing income from fish, crabs and other marine resources

  • Strengthening food security by ensuring the natural regeneration of fish and crabs, a reliable source of nutrition for coastal families

  • 12 direct beneficiaries per 1,000 mangroves planted: local planters in the villages of the intervention areas, working on plantations and paid fairly

  • 0.7 long-term jobs per 1,000 mangroves planted: full-time regional staff, including local project managers, technicians and park rangers

  • Empowering local communities to preserve their remaining intact mangrove forests by establishing, revitalizing and strengthening local governance structures

  • Promoting the development of alternative income-generating activities adapted to the local context, such as silk production, beekeeping and aquaculture

  • Better access to basic social services and living conditions, supporting long-term community involvement in mangrove restoration and preservation

  • Women and youth are empowered through capacity building and involvement in income-generating activities, promoting inclusion and equality within communities

  • Education and awareness activities help communities and stakeholders understand the importance of mangroves and their role in preserving coastal ecosystems

  • Creates opportunities for the development of ecotourism, capitalizing on the ecological richness of restored mangrove areas

Operations

Operations

Operations

  • The project is operated on the ground by our technical partner Bôndy

  • Planting takes place across locations in Boeny, using two species: Ceriops tagal and Rhizophora mucronata

  • The process starts with community consultation, followed by paid training for villagers and the establishment of planting teams

  • Planting is carried out in the intertidal zone, the area between high and low tide that is regularly submerged and exposed. Teams follow a rigorous technical protocol: selecting viable propagules of at least 15 cm with no damage, inserting them directly into the muddy substrate at roughly one third of their length, in a vertical orientation, spaced approximately 1.2 m by 1.2 m (around 6,500 plants per hectare)

  • The areas to be restored are first mapped out, and villagers then carry out the planting there

  • Farmers are trained on post-plantation maintenance, and field information is gathered per plantation

  • Yearly monitoring takes place, with 5 years of follow-up

Ecological impact

Ecological impact

Ecological impact

  • The project aims to restore 400 hectares of degraded land, by planting 2.4 million mangroves

  • Mangrove root systems act as a natural buffer, stabilising coastal soils, reducing saltwater intrusion into agricultural lands and protecting coastlines from erosion storms and cyclones

  • Roots capture sediments, promoting sedimentation and helping balance sea levels

  • Combating climate change as highly effective carbon sinks, sequestering and storing 5 to 10 times more carbon than terrestrial forests

  • Protecting coastal biodiversity. Restored mangroves create natural nurseries and habitat for fish, crabs and shrimp, support migratory species such as birds, and safeguard coral reefs and seagrass beds

1 No poverty
2 Zero hunger
8 Decent work and economic growth
13 Climate action
14 Life below water

Specific sites

Mangrove plantation in Majunga, April 2025

On three sites (1.58 ha, 1.48 ha & 0.34 ha), in the Bombetoka Bay located in the North-West of Madagascar, more specifically in the village of Amparemahintsy (Belobaka municipality, Boeny), we're planting new mangrove trees to restore the mangrove forest. In April 2025, 22.104 mangrove trees of two species were planted here: Ceriops tagal and Rhi...Read more

Mangroves in Majunga, 2023

Mangroves are an important piece of the ecosystem that offers much more than we can imagine. Besides being a great habitat for wildlife species and being great protection for coasts, it also is one of the greatest sources of carbon sequestration. Moreover, the mangroves provide spawning grounds for shrimps, crabs, and fish, supporting the local eco...Read more

Partners