Monitoring of Black Mangrove Restoration with Nursery-Reared Seedlings on an Arid Coastal Lagoon
This paper describes a reforestation experiment with black mangrove (Avicennia germinans) in an arid mangrove forest of Baja California Sur, Mexico. In arid mangrove systems, natural regeneration and small-scale reforestation are not adequate to restore mangrove forests, as they may be in the humid tropics. Thus, alternative nursery techniques for arid mangroves must be developed.
Research Goals & Methods
The authors collected black mangrove propagules from the field and grew seedlings in a terrestrial nursery for 3 months. Propagules were planted in plastic biodegradable bags in a sand and salt mixture, incubated indoors for 1 week, and then transferred to an outdoor nursery. Survival rate in the nursery was 100%. The seedlings were subsequently transplanted to a clear-cut black mangrove swamp in 5 plant clusters and were monitored every 6 months for 2 years. Survival rate was 74% after 24 months.
Conclusions & Takeaways
Mangroves achieved maximum growth in two-plant clusters. Natural regeneration in the experimental lagoon and in arid mangroves in general is very low, thus, planting of terrestrial nursery-reared mangroves provides a good option for restoration. Direct planting and tidal zone nursery rearing have proved unsuccessful for arid mangrove systems.
Monitoring of black mangrove restoration with nursery-reared seedlings on an arid coastal lagoon. Hydrobiologia. 2001;444:101–109. doi:10.1023/a:1017552305401..
- Environmental Microbiology, The Center for Biological Research of the Northwest (CIB), Mexico
- The Bashan Foundation for the Advancement of Science and Art