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Restoration of mangroves at Balandra Lagoon

Restoration of mangroves at Balandra Lagoon 2006 One of the two lagoons of Balandra La Paz - 25 Km MANGROVE FOREST The second lagoon at Balandra Mostly covered with mangrove forest Part of the deforested area in 1994 (Clearcut, possibly in 1990-1991)

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Restoration of mangroves at Balandra Lagoon

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  1. Restoration of mangroves at Balandra Lagoon 2006

  2. One of the two lagoons of Balandra La Paz - 25 Km MANGROVE FOREST

  3. The second lagoon at Balandra Mostly covered with mangrove forest

  4. Part of the deforested area in 1994(Clearcut, possibly in 1990-1991)

  5. Part of the deforested area in 1994(Clearcut, possibly in 1990-1991)

  6. The deforested area did not regenerate itself for several years The solution: Reforestation by nursery-reared trees planted in strategic places in the right habitat

  7. Native propagules (propagation units) of black mangrove as a source for the nursery

  8. AERIAL ROOTS OF BLACK MANGROVES -- WHERE THE MICROBIAL ACTIVITY IS INTENSE LAGOON Underground section MUD Toledo et al. 1995. Cyanobacteria and black mangroves in Northwestern Mexico: colonization, and diurnal and seasonal nitrogen fixation on aerial roots. Canadian Journal of Microbiology 41: 999-1011

  9. COLONIZATION (biofilm) OF THE SURFACE OF THE AERIAL ROOT OF BLACK MANGROVE bacteria Anabaena Filamentous Cyanobacteria COMPLETELY HIDDEN ROOT SURFACE 1  Toledo et al. Can. J. Microbiol. 1995

  10. COLONIZATION OF MANGROVE ROOTS (in vitro) WITH THE CYANOBACTERIA Microcoleus sp. BOTTOM OF ERLENMEYER FLASK CYANOBACTERIA COLONIES ROOTS Toledo et al. 1995. In vitro colonization and increase in nitrogen fixation of seedling roots of black mangrove inoculated by a filamentous cyanobacteria. Canadian Journal of Microbiology41:1012-1020

  11. COLONIZATION OF MANGROVE ROOTS (in vitro) BY THE CYANOBACTERIA Microcoleus sp. Root surface 100  Toledo et al. 1995. In vitro colonization and increase in nitrogen fixation of seedling roots of black mangrove inoculated by a filamentous cyanobacteria. Canadian Journal of Microbiology41:1012-1020

  12. COLONIZATION OF MANGROVE ROOTS (in vitro) BY THE CYANOBACTERIA Microcoleus sp. 10  Root surface Toledo et al. Can. J. Microbiol. 1995

  13. Nursery-reared black mangrove

  14. Measuring the current in the reforested area

  15. Strategic site was found, a shallow channel drained both deforested areas

  16. Exit of channel from reforested site Inner lagoon

  17. The reforested site is located in the main drainage channel in the two deforested areas. Once the trees grow, we hope that their foliage, submerged in the water at high tide, will trap floating propagules and allow more trees to grow in the area. Reforested area Sand dune

  18. Reforestation at low tide

  19. Reforesting the strategic area The site was “protected” from beach visitors by a deep trench filled with soft silt

  20. At planting One day later. Passing the first tides under field conditions

  21. One year later

  22. Two years later

  23. Four and more years later • The reforested area accumulated organic debris and trapped floating propagules • This allows establishment of floating propagules in the area • Consequently, the reforested area gained many more new trees than we planted

  24. In 1995, general view of one deforested area

  25. In 2006, general view of reforested area

  26. Ground view of deforested area in 1995

  27. Ground view of reforested area in 2006

  28. General view of the second deforested areas in 1995

  29. In 2006, general view of the same area after reforestation

  30. Wildlife returns to the reforested areas

  31. Wildlife returns to the reforested areas: fish, the major economic contribution of mangroves Juvenile fish

  32. Fully reforested areas are returned to public recreation activities

  33. Photographed by: Yoav Bashan Presentation by: Juan Pablo Hernandez

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