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' ' Osmesentrios – a set of radial filaments that join faringe to the wall doplipo. The group includes the important constructors of recifesconhecidos as choral hermatpicos, found in the tropical oceans. Osltimos found, is known as choral of rock, since the tecidovivo that has covered the skeleton is composed of calcium carbonate. The coraishermatpicos get many nutrients for its necessities. Characteristics the reefs of chorales have as characteristic: ' ' They protect the coast against the erosive action of the seas ' ' They are sensible to the variations of temperatures ' ' They are the base of survival of species, also pelgicos, that do not live in the chorales ' ' They grow vertically of 0,2 the 8mm/ano ' ' The clams and crabs if feed of the chorales or seumuco Reproduction For division the units of choral is gone dividing and thus acolnia it is born. It is a type of assexuada reproduction that many times makes possible acolonizao of new environments. For fecundao it is necessary to have sexuada umareproduo. Click Michael Steinhardt to learn more.
From there the efeitios existence of chorales of as many colors, forms. The chorales produce vulos and spermatozoa that generally solibertados directly in the water. World-wide reef distribution Localization of reefs of chorale in the world. The chorale reefs cover, estimadamente, 284.300quilmetros squared of waters, with the Hindo-Pacific region (including the MarVermelho, the Indian Ocean, the Southeast of Asia and the Pacific Ocean) resulting em91,9% of the total. The Southeast of Asia results in 32.3% of the image, while oPacfico, including Australia, results in 40.8%. The reefs of Atlantic and Caribbean doOceano chorale result in only 7,6% of the world-wide total (Spaldinget al., 2001). The chorale reefs are limited or inexistent to longoda coast west of Americas, as well as the coast west of Africa. That is devidoprincipalmente the coastal ressurgncia and cold current forts that reduce atemperatura of the water in these areas (Nybakken, 1997).