Monitoring of black mangrove restoration with nursery-reared seedlings on an arid coastal lagoon
2001
Black mangrove (Avicennia germinans) seedlings (n=555) were grown from field-collected propagules for 3 months in a new type of terrestrial nursery. They were grown in clusters of five plants, and then they were transplanted to a clear-cut zone in a lagoon fringed by a mangrove forest at Laguna de Balandra, Baja California Sur, Mexico. Survival and plant development of transplants were monitored at 6-monthly intervals for 2 years. After 1 month, the survival of seedlings was 96%, later stabilizing at approximately 77%. After 24 months, 74% of the plants were still alive. The best cluster, showing maximum growth under mangrove swamp conditions in this arid zone, was a two-plant cluster. The lagoon has a low natural regeneration rate of 48 plants per 350 m2 per 6 years of monitoring. This study shows the feasibility of restoring destroyed arid-coast lagoons with black mangroves.
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