A little marine ecology to start... |
| Benthic
(bottom) habitats |
Soft
substrate environments include sandy bottoms right into muds, from
mixed gravels to finely textured substrates
• The creatures in this environment are mainly infauna (live
in the soil)
• These include cucumbers, sea mice, sand dollars, razor fish,
worms, clams, stingrays, crabs, flounder, garden eels
• These animals are largely filter feeders and planktonivores-
they help clean the water
• Soft bottom habitats are important feeding grounds for adult
fish of many species |
| Seagrass
(several species) |
•
Plant roots hold soil and break waves
• This is necessary nursery habitat
for many species, including parrotfish, grunt, snapper, jacks, stingrays…
• It is also feeding habitat for adult
fish: grunt, snapper, tarpon, snook, bonefish, grouper, barracuda,
eagle ray…
• Home for conch, octopus, clams, crabs,
squid...
|
| Coral |
Coral
is a colony of little living polyps with limestone skeletons.
It is an important ecosystem for a variety of reasons:
• Habitat for mature and juvenile animals: Fish, Crabs, Squid…
pretty much everybody
• Reefs help breaks waves before they reach the shore, or more
delicate habitats such as mangroves or seagrass areas
• Eroding coral creates sand, e.g. Montego Bay's beautiful white
sand beaches
• Coral is the colourful product that watersports sell.
 |
What
does an anchor do? |
It
gouges into the benthic habitat to hold your boat in place…
chains from the anchor line also disturb this habitat
These benthic habitats are delicate. When they are disturbed...
• Sand habitats may take up to several months to recover (remember
that sand is full of living plants and animals!)
• Sea grass takes up to five years to recover
• Coral: may take decades to recover, if it ever gets the
chance
|
Permanent
mooring systems |
These
Anchor Damages Are Acute …. But Avoidable
Park moorings are permanent with a one-time damage, and with a limited
footprint.
• Permanently anchored lines into the substrate
• Permanently available moorings/ropes to tie to.
• No more need for anchors
• Safe, strong and easy to use mooring
• Currently we have 39 deployed within the park area
|
| Types
of moorings that the park utilises |
In
coral areas:
• A hole is bored into an solid area of dead coral
• An eyed anchor pin is set into this hole
• Concrete is set into the hole to anchor the pin
• Mooring lines and marker floats are attached to this permanent
anchor point
|
In sand and
sea grass areas:
A “Manta Ray” device is vibrated/hammered into the sand,
where it anchors itself
Lines and floats are attached to the eyed end of this permanent anchor

Tools required for a "Manta Ray"are shown to the right—
|
Concrete
blocks, engine blocks, train wheels: heavy masses
• Blocks are set in sandy areas
• Lines and floats are attached to these
heavy masses.
• May be dug-in to set into the sand
• Work mainly by weight
Impermanent and moveable, storm or accidentally draggable
|
| Proper
use of moorings |
Approach
from Down-Wind/Down-Current
Approach carefully
(lines, snorkelers, buoys, boats)
Attach to eyed, floating pick-up line extending from float using your
OWN bow-line: a carabineer clip may make
this easier.
Have a minimum of 6M of your line between boat and attachment point.
Attach only at your boats bow.
|
| CAUTION |
DO NOT tie or
attach directly to Park Mooring.
Bring your own attachment line and use at least 6M (20 feet) of
it.
DO NOT strain/use
engine against the mooring
DO NOT
attach more than ONE boat per mooring
|
| Future
of the mooring system |
• Setting
of further moorings
• Moving away from/replacement of Heavy Mass moorings
• Regular cleaning / periodic replacement of lines
• Deployment of Park moorings in marina and sea-side residential
areas to allow sea grass re-colonization |
|
Our eventual goal = Elimination of anchor use within the Park area
|
T'anx
for learning about our mooring buoy system!
Sincerely,
|