The
Mangroves of Puerto Rico are found along the shorelines, fringing the
bays and around the lagoons, where there is no wave action.
Puerto
Rico has three types of mangroves: Red mangroves, Black mangroves
and White mangroves (named for the color of their bark) and Buttonwood
which is related and sometimes called a mangrove. All of these line
the lagoons and shorelines. What you most readily see from the water
is the Red mangrove with its noticeable prop roots. The black and
the white mangroves grow behind them. Under normal conditions these
trees would reach 60 to 100 feet high but almost all of these trees
were leveled by Hurricane Hugo and are recovering. They grow very
slowly.
The
mangroves shed leaves copiously all year long, creating the basic
source of food. Bark, twigs, root material, guano from birds roosting
in the trees, and organic matter of all kinds including dead animals
and loose sea grass trapped in the maze of roots add to it. All
decompose to begin the food chain. Bacteria and fungi are the agents
that produce edible detritus and are themselves eaten by marine
animals often too small to see. They in turn are eaten by larger
animals. And finally, larger predators, including humans, come along
to harvest the bounty.
EXPLORE THE MANGROVES WITH ELENA - A WALKING/SWIMMING TOUR
A variety
of organisms utilize mangrove habitats. Marine species inhabitant
the underwater prop root complex and tidal channels. All fish and
shellfish caught commercially, and by recreational means, utilize
mangrove habitat at some point in their life cycle. Amphipods, fiddler
crabs, killifish and minnows live in mangroves and eat detritus.
Lobster larvae floating in the plankton, migrate to the roots of
red mangroves. They consume both plant and animal material. The
sea trouts (from the croaker family) tolerate higher turbidity and
feed on fish in mangroves and sea grass beds. Also carnivorous,
snook can be found in the mangroves. In
addition to the marine organisms, both terrestrial organisms and
birds utilize the forest floor, root complex and the canopy. Mangrove
communities are also known to provide habitat for a number of threatened
and endangered species.
Mangroves
reproduce by dropping their 'propagules' into the water which float
across the oceans until they lodge into the ground, on perhaps a
distant seashore. There they take root and form a new plant, if
allowed to grow. Propagules contain no seeds. They have already
matured on the plant and are 'ready to go' plants that only need
lodge themselves to send out their roots and leaves. They are viable,
floating in the ocean, for up to a year.
The elusive Mangrove Cuckoo - Red
Mangrove Propagules - Iguanas inhabit the mangroves
Here
are several websites that have lots of information about mangrove
ecosystems: They all open in new windows so to come back to this
website just close the new window.
The
Mangrove Action Project.
Mangroves.Org
curious website also has good links
All
kinds of uses for Mangroves, even medicinal - Purdue University
Great
Resource page for lots of Links
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