world focus magazine

world focus magazine

world focus magazine Published this article page no  124 Natural EnvironmentalTemperature Sediment Deposition Salinity pH etc.  Anthropogenic Mining Bottom Fishing Tourism pollution etc. Coral bleaching  Coral bleaching occurs when coral polyps expel algae that live inside their tissues.  Coral species live within a relatively narrow temperature margin hence low and high sea temperatures can induce coral bleaching.  When corals are exposed to high concentrations of chemical contaminants or pathogens coral bleaching happens.  Some of the common factors behind coral bleaching areo Run off from agricultural land and chemical pollution results in eutrophication and subsequent oxygen depletion. o Destructive fishing and boating practices lead to habitat destruction and disintegration of reef ecosystem. o Marine Pollution Incidents such as increase in sea transport oil spill etc. destroy coral reefs o Uncontrolled tourism activities lead to breakage of coral colonies and leads to tissue damage. o Coastal construction and shoreline development results in heavy sedimentation which can lead to coral reef destruction. o Introduction of invasive species in ocean by humans too lead to change in the coral ecosystem. Coral mining Live coral is removed from reefs for use as bricks etc. o Ocean acidification With increased pollution Carbon Dioxide is absorbed by Ocean leading to rise in Carbonic acid in water. As Coral has Calcium carbonate as main component it reacts with Carbonic acid and slowly dissolves down.  According to a study since 1982 three mass bleaching events occurred in 1998 2010 and 2016 have occurred in India. It is in this context that coral restoration activities are being taken up. Measures taken for Coral Restoration Global Measures  world focus magazine buy.

world focus magazine