What is coral bleaching?
Coral bleaching is a phenomenon in which corals lose their distinctive color because they eliminate unicellular organisms that live with them in a symbiotic relationship. If the coral is fully bleached, it will change completely white and die if stress on coral decreases, allowing symbiotic organisms to return to the coral. Worldwide, coral bleaching began to increase at the speed that some scientists considered to be alarming at the age of 90, and scientists feared that massive losses in the world coral population could be very likely.
Research of coral bleaching has shown that it is caused by a coral stress. Coral is in fact a very delicate organism, adapted to survive in the waters of the poor in nutrients, but well tolerates changes in the environment. A healthy coral reef can maintain a wide range of organisms, promote biological diversity, and if the corals die, the creatures that surround the cliff can also die. Therefore, coral bleach is not just a threat to Coral but for sea healthIn general in some regions of the world.
Many things can emphasize corals. Increasing water temperatures and increased ultraviolet radiation are suspected of two main coral stressors. In addition, coral can be disrupted by nutrient drainage from the ground, strong sedimentation, pollution, increasing salinity, acidification of the surrounding water and infections by various organisms. If coral bleaching is recognized early and people act quickly, they can sometimes be arrested, allowing coral to recover, but in other cases biologists are helpless helping coral.
During the whitening period, Coral is still alive. However, because it loses its unicellular friends, it can become unhealthy. The corals rely on Zooxanthellae eyelashes on photosynthesis and provide energy from the Sun that can use coral. When these eyelashes are excluded for a longer period of time, coral can start to die. It is common for whitening cliffs to disintegrate, which can lead to problems in the future, as well as toWhen bleaching stops and the cliff is reasonable for recovery. The more damage is, the longer it will take to restore the cliff.
Some scientists believe that coral bleaching can actually be an adaptation from the coral to deal with environmental changes. By excluding Zooxanthellae algae, corals can create room for eyelashes that could be better adapted to the changed environment, which potentially allows you to survive corals. It seems that historical evidence of the geological record supports this idea, but biologists sounded a remark about caution; While coral may be able to cope with rising temperatures alone, it cannot handle pollution and changes in the chemical composition of the water.