Still
Thursday, August 21, 2008
Medicinal benefits of Coral reefs
Finally, coral reefs are sometimes called the “medicine cabinets” of the 21st
century. Coral reef plants and animals are important sources of new medicines
being developed to treat cancer, arthritis, human bacterial infections, heart
disease, viruses and other diseases. Some coral reef organisms produce powerful
chemicals to fend off attackers, scientists continue to research the medicinal
potential of these substances. In the future, coral reef ecosystems could
represent an increasingly important source of medical treatments, nutritional
supplements, pesticides, cosmetics and other commercial products.
century. Coral reef plants and animals are important sources of new medicines
being developed to treat cancer, arthritis, human bacterial infections, heart
disease, viruses and other diseases. Some coral reef organisms produce powerful
chemicals to fend off attackers, scientists continue to research the medicinal
potential of these substances. In the future, coral reef ecosystems could
represent an increasingly important source of medical treatments, nutritional
supplements, pesticides, cosmetics and other commercial products.
Tuesday, August 19, 2008
Threats to Coral Reefs
Corals and coral reefs are extremely sensitive. Slight changes in the reef
environment may have detrimental effects on the health of entire coral colonies.
These changes may be due to a variety of factors, but they generally fall within two
categories: natural disturbances and anthropogenic disturbances. Although
natural disturbances may cause severe changes in coral communities,
anthropogenic disturbances have been linked to the vast majority of decreases in
coral cover and general colony health when coral reefs and humans occur
together. One of the greatest threats to coral reefs is human expansion and
development. As development continues to alter the landscape, the amount of
freshwater runoff increases. This terrigenous runoff may carry large amounts of
sediment from land-clearing areas, high levels of nutrients from agricultural
areas or septic systems, as well as many pollutants such as petroleum products or
insecticides. Whether it is direct sedimentation onto the reef or an increase in the
turbidity of the water due to eutrophication, decreases in the amounts of light
reaching corals and may cause bleaching.
In addition, increases in the amounts of nutrients enhance the growth of other
reef organisms such as sponges which may outcompete the corals for space on
crowded reefs.
environment may have detrimental effects on the health of entire coral colonies.
These changes may be due to a variety of factors, but they generally fall within two
categories: natural disturbances and anthropogenic disturbances. Although
natural disturbances may cause severe changes in coral communities,
anthropogenic disturbances have been linked to the vast majority of decreases in
coral cover and general colony health when coral reefs and humans occur
together. One of the greatest threats to coral reefs is human expansion and
development. As development continues to alter the landscape, the amount of
freshwater runoff increases. This terrigenous runoff may carry large amounts of
sediment from land-clearing areas, high levels of nutrients from agricultural
areas or septic systems, as well as many pollutants such as petroleum products or
insecticides. Whether it is direct sedimentation onto the reef or an increase in the
turbidity of the water due to eutrophication, decreases in the amounts of light
reaching corals and may cause bleaching.
In addition, increases in the amounts of nutrients enhance the growth of other
reef organisms such as sponges which may outcompete the corals for space on
crowded reefs.
How you can help protect the coral reefs!
Do not deploy the anchor directly above the coral.
Use navigational charts to locate coral reefs in case boats run aground and
destroy them.
Do not dispose of trash,washings, or other debris on or near the coral reefs.
Don't touch corals when diving or snorkeling. Coral is made of a hard
skeleton,but coral polyps are fragile.You may damage the fragile coral polyps
in the process.
Anglers should avoid shallow coral reefs when trolling. Hooks can injure and
scar the coral,leaving it vulnerable to infection by microscopic organisms
that can kill the coral.
When harvesting for lobsters, refrain from touching coral reefs and never use
chemicals near a reef. Heavy traps break coral and damage the surrounding
habitat when the traps are pulled.
Monday, August 18, 2008
Conclusion
Hope that you have enjoyed our blog and understand that all Coral Reefs will be
destroyed at the current unfavourable rate. Do your part in taking care of Coral
Reefs and be amazed by Mother Nature's natural scenery and greenery. DO NOT
take Coral Reefs for granted and treasure it!
destroyed at the current unfavourable rate. Do your part in taking care of Coral
Reefs and be amazed by Mother Nature's natural scenery and greenery. DO NOT
take Coral Reefs for granted and treasure it!
Quiz
Q1) Which year has been chosen as the International Year of the Reef?
Ans:______
Q2) Coral Reefs are just places of attractions and are of no use?
True/False
Q3) Coral Reefs will never be destroyed?
True/False
Q4) Coral Reefs have no living creatures in it?
True/False
Q5) Inconsiderate actions of ours will not harm the Coral Reefs?(eg. to litter near shores)
True/False
Note: All the answers can be found in the blog.
Ans:______
Q2) Coral Reefs are just places of attractions and are of no use?
True/False
Q3) Coral Reefs will never be destroyed?
True/False
Q4) Coral Reefs have no living creatures in it?
True/False
Q5) Inconsiderate actions of ours will not harm the Coral Reefs?(eg. to litter near shores)
True/False
Note: All the answers can be found in the blog.
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