Posted by: sarahegner | May 18, 2013

In November of 2012, we planted 18 new mangroves on the spit at MarineLab.  We used PVC that had previously been hammered in the ground but did not have a surviving mangrove.  Mangrove peat and decaying seagrass material was put into the PVC so that when propagules were placed within the PVC they were completely protected and at about mean high tide.

As background research varied and we do not have much information on the initial planting, we are experimenting to see if propagule germination status plays a role in survival and growth rate.  11 propagules collected came directly from a red mangrove while seven came from the water (4 of the 7 were floating horizontally and 3 of the 7 were floating vertically).

While we will need at least a year to draw any real conclusions, we are pleased that 17 of the 18 have survived since the initial planting.

Mangrove #

Collection Location

1/17/13

4/3/13

8

Tree

Propagule, no leaves Propagule, 2 leaves

9

Floating horizontal

propagule with leaves Propagule, 2 leaves

12

Floating vertical

Propagule, no leaves Propagule, 4 leaves

19

Tree

Propagule, no leaves Propagule, 2  leaves

20

Floating horizontal

Propagule, no leaves Propagule, 4 leaves

21

Tree

Propagule, no leaves Propagule, 2 leaves

22

Tree

Propagule, no leaves Propagule, 2 leaves

28

Tree

Propagule with leaves Propagule, 2 leaves

31

Floating horizontal

Alive but far down in PVC Healthy propagule with 2 leaves but below the top of the PVC

33

Tree

EMPTY EMPTY

34

Floating vertical

Propagule, no leaves Has propagule but not healthy

39

Tree

Propagule with leaves Propagule, 2 leaves

43

Floating horizontal

Propagule with leaves Propagule, 2 leaves

48

Tree

Propagule with leaves Propagule with 3 leaves

51

Tree

Propagule, no leaves Propagule, 2 leaves

53

Floating vertical

Propagule, no leaves Propagule but not healthy

61

Tree

Propagule with leaves Propagule, 1 leaf

63

Tree

Propagule with leaves Propagule, 2 leaves

 

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Responses

  1. how do you do. I have a question after watching these pictures of mangroves. the first picture show that mangrove plant on January 2013 with NO leafs and 3 month later it has leafs. is that normal for mangroves need 3 month to have leafs? thank you


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