Snorkeling in Grand Cayman, Cruise Ship Excursions, Private Snorkeling Guide Photographer Website Created in 1996
Reef Identification:
Grand Cayman Reefs
Marine Awareness Aquatic Ecology Of Gulf Rigs.
Artificial reefs are those which provides structure for marine life
to develop protective habitat. Many reef creatures and fish have certain
foods which live at different level of the water column. These sources
of food are restricted to certain depth range by the sun light spectrum
of colors. Once certain algae and micro marine life get established, other
aquatic life follows and forms the food web which has a certain rhythm
of balance. Aquatic ecology is a composed piece of nature developing to
a point of harmony within its own set of guidelines.
Gulf Rigs have certain levels of marine inhabitants. These can
be divided into five different depth levels and each level into stationary,
protective, pelagic, and predators. The depth of these zones start at the
surface as the surf or surge zone. This area of marine life consist of
algae and barnacles as stationary growth and dependent on the red color
spectrum to process the nutrients. This area supports some reef fish and
crabs. The next area of growth is that of a coral reef community and is
limited in coral and sponges due to salinity, turgidity and temperature
of the water. Also the abundance of small and large reef fish add an active
dance of colors and business. The next zone is that of fish schooling in
numbers for security. These range from small schools of Snappers which
can be 15 to 100 in a school, to the torpedo shapes of blue runners, jack
fish and bonito. In the last zone is the turbid water of high sedimentation
and will vary in visibility from two feet to ninety feet. This is dependent
on phases of the moon and the amount of water moved in a given tidal period.
This area has a lot of bottom dwelling type marine life. Examples of bottom
dwellers are the octopus, moray eels, lobsters, flounders, drum, rays and
sharks. Due to low visibility most of these animals have poor eye sight
and react as a instinct of survival.
All areas of marine life can be seen on a given dive by planning
multi-level dives and planning objectives of what to look for. Remember
to look carefully, watch where one places their hands and fins, maintain
neutral buoyancy to avoid damaging the aquatic balance of the ecosystem.