Mangrove Information

INTRODUCTION

Mangroves are various large and extensive types of trees as well as shrubs that grow in the salty coastal sediment in the tropics, specifically along the coast of the Dominican Republic, although they do span 118 countries and territories. Mangroves are salt tolerant trees that are adapted to live in harsh coastal conditions. Because their root system is so complex, they are able to handle salt water immersion and waves without deterioration.

Although there are three main types of mangroves, red, black and white, the most common mangrove in Las Terrenas and the mangrove that this project focuses on restoring is the red mangrove.

LIFE CYCLE OF A MANGROVE

The red mangrove trees produce small yellow flowers no bigger than the size of a finger tip which then mature into a slightly larger pod, holding the seeds. The seed then pushes itself out from the pod, growing towards the ground. This phase is called a propagule. After it is about six inches long and the bottom third becomes brown, the propagule drops into the water below. It is bottom heavy so from the drop and its disproportionate weight, the propagule implants itself into the substrate below where it will remain for its 40 day gestation period. Some propagules do not make contact right away and will float until they root and others may not root at all. After the rooting begins to take place the propagule grows upwards, beginning to sprout small leaves.


IMPACT OF A MANGROVE ON THE ENVIRONMENT


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