Mozambique's 400,000 hectares of mangrove forest sustain a hidden economy — fish, crabs, charcoal, and honey. Discover how these coastal ecosystems connect to American blue carbon markets and storm protection.
Mangrove Fishing: The Hidden Economy of the Coast
The Forest Between Land and Sea
Mozambique's mangrove forests are among the most extensive in Africa — covering approximately 400,000 hectares of coastline. These intertidal forests — rooted in saltwater, bridging land and sea — are ecological powerhouses: nurseries for fish, carbon sinks, storm barriers, and homes to countless species.
For Mozambican coastal communities, mangroves are also an economic resource — providing fish, crabs, shellfish, timber, and charcoal. The mangrove economy is hidden — invisible in national statistics, unrecognised in development planning — but it sustains hundreds of thousands of people.
The Mangrove Economy
Fisheries
Mangroves are fish nurseries — many commercially important species spend their juvenile stages sheltered among mangrove roots. Artisanal fishers who work the mangrove channels catch:
- Mullet and tilapia — brackish-water fish
- Crabs — particularly the mud crab, a high-value species
- Shrimp — juvenile shrimp shelter in mangroves before migrating to open water
- Shellfish — oysters, clams, and cockles attached to mangrove roots
Charcoal and Timber
Mangrove wood is dense, hard, and makes excellent charcoal. In areas where other fuel sources are scarce, mangrove charcoal is a primary energy source. Mangrove timber is also used for construction — poles, fencing, and boat-building.
This extractive use is the primary threat to Mozambican mangroves. When mangroves are cut for charcoal or timber, the ecological services they provide — fish nurseries, storm protection, carbon storage — are lost.
Honey
Mangrove flowers produce excellent honey, and mangrove beekeeping is a growing economic activity. This is one of the most sustainable uses of mangrove forests — it generates income without destroying the trees.
Women and the Mangrove Economy
The mangrove economy is heavily female. Women are the primary gleaners — walking the mangrove mudflats at low tide, collecting crabs, shellfish, and oysters. This activity provides protein for families and income for women, but it is physically demanding and often dangerous (mud, tides, snakes, crocodiles in some areas).
Women's mangrove work — like women's fishing generally — is undervalued and undercounted. But it is essential to coastal food security.
The American Connection
Mangrove conservation connects Mozambique to America through:
Blue Carbon
Mangroves are the most carbon-rich forests in the tropics — storing up to four times more carbon per hectare than terrestrial forests. This "blue carbon" is increasingly recognised in international climate policy. American companies and carbon offset programmes invest in mangrove conservation as a climate solution.
Storm Protection
The connection between mangroves and storm protection was dramatically demonstrated in 2019, when Cyclone Idai devastated central Mozambique. Areas with intact mangrove forests suffered less damage than areas where mangroves had been cleared. This parallels the American experience with hurricanes in the Gulf Coast, where mangrove and wetland loss has increased storm surge damage.
Sustainable Aquaculture
American sustainable seafood initiatives are exploring mangrove-friendly aquaculture — farming shrimp and fish in ways that don't destroy mangrove habitat. Mozambican community-based aquaculture projects are potential partners in this effort.
Community Conservation
Both countries are developing community-based conservation models — empowering local communities to manage mangrove resources sustainably rather than imposing top-down restrictions that often fail.