The great barrier reef is the largest coralreef in the world is has unusual coral andbrightly colored fish such as sweetlips,angel fish, clown fish and emperor fish.The coral reef is located off the north-eastcoast of Australia and stretches to a lengthof 2900 kilometers. (Thats a lot of ocean)
Coral reefs are unique systemsthat are under threat by noneother than green house gases.An increasing amount ofgreen house gases in theatmosphere is causing theocean to heat up.The scientists call thisocean acidification.The Carbon Dioxide isdissolving in the ocean andchanging the chemistry of thesea water.People have known about thisserious problem for some timenow but no one thinks its worth asecond thought.Coral reefs are home tomany different types offish, from clown fish allthe way to sweet lips.
Coral Reefs are livingcommunities of tinyanimals called polyps.One piece of coral can be home toover 1,000 polyps, each of whichhave a soft body covered in a hardouter shell called an exoskeleton.When a polyp dies itsexoskeleton stays behind toform a foundation for newpolyps to live and grow.More than 400 of the worlds coral canbe found in the great barrier reef coralsuch as Brain Coral, Staghorn Coral,Cauliflower Coral, Elephant Ear Coraland Table Coral.
As the Ocean changes, somemarine species may find thenew conditions better forthem and they will becomemore plentiful. Eventually, inthousands of years, brandnew reefs may grow inplaces quite different fromtoday’s reefs.
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