Restoration of mangroves at balandra lagoon
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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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One of the two lagoons of balandra
One of the two lagoons of Balandra

La Paz - 25 Km

MANGROVE FOREST


The second lagoon at balandra
The second lagoon at Balandra

Mostly covered with mangrove forest


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


Part of the deforested area in 1994 clearcut possibly in 1990 19911
Part of the deforested area in 1994(Clearcut, possibly in 1990-1991)


The deforested area did not regenerate itself for several years

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


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


Aerial roots of black mangroves where the microbial activity is intense
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


Colonization biofilm of the surface of the aerial root of black mangrove
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


Colonization of mangrove roots in vitro with the cyanobacteria microcoleus sp
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


Colonization of mangrove roots in vitro by the cyanobacteria microcoleus sp
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


Colonization of mangrove roots in vitro by the cyanobacteria microcoleus sp1
COLONIZATION OF MANGROVE ROOTS (in vitro) BY THE CYANOBACTERIA Microcoleus sp.

10 

Root surface

Toledo et al. Can. J. Microbiol. 1995





Restoration of mangroves at balandra lagoon

Exit of channel from deforested areas

reforested site

Inner lagoon


Restoration of mangroves at balandra lagoon

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


Reforestation at low tide
Reforestation at low tide in the two deforested areas.


Reforesting the strategic area
Reforesting the strategic area in the two deforested areas.

The site was “protected” from beach visitors by a deep trench filled with soft silt


Restoration of mangroves at balandra lagoon

At planting in the two deforested areas.

One day later.

Passing the first tides

under field conditions


One year later
One year later in the two deforested areas.


Two years later
Two years later in the two deforested areas.


Four and more years later
Four and more years later in the two deforested areas.

  • 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


In 1995 general view of one deforested area
In 1995, general view of one deforested area in the two deforested areas.


In 2006 general view of reforested area
In 2006, general view of reforested area in the two deforested areas.


Ground view of deforested area in 1995
Ground view of deforested area in 1995 in the two deforested areas.


Ground view of reforested area in 2006
Ground view of reforested area in 2006 in the two deforested areas.




Wildlife returns to the reforested areas
Wildlife returns to the reforested areas in the two deforested areas.


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

Juvenile fish



Restoration of mangroves at balandra lagoon

Photographed by: activitiesYoav Bashan

Presentation by:

Juan Pablo Hernandez