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Ocean Protection
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sydneyst
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Joined: Mon Mar 10th, 2008
Location: Seattle, USA
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 Posted: Sat Jul 4th, 2009 08:58 pm

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Coral Reefs Endangered by Climate Change

special investigation by Sydney's Thumb 


As oceans absorb carbon dioxide, seawater becomes more acidic. Already a 30 percent increase has occurred.  When oceans are acidified, seawater is depleted of compounds that organisms use to build shells and skeletons to armor themselves.  Directly affected creatures include coral, crabs, sea stars, sea urchins. The effects, however, reverberate through the food web. Increase in water temperature exacerbates the problem and leads to the starvation of coral, a phenomenean known as coral bleaching.

Coral reefs are among the most biodiverse habitat on the planet and are often called “underwater rainforests.”  In 2002, Conservation International collaborated with the IUCN to identify 11 world-wide marine hotspots, many of them reef systems,  where planet biodiversity is under greatest threat.  

                                                     

Attached Image (viewed 870 times):

hotspots.jpg

Last edited on Mon Aug 3rd, 2009 05:54 pm by sydneyst

sydneyst
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Joined: Mon Mar 10th, 2008
Location: Seattle, USA
Posts: 1082
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 Posted: Sat May 30th, 2009 12:35 pm

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National Ocean Service Video Link

see: http://oceanservice.noaa.gov/nosvideo.html  for a quality video on the work of the NOAA's National Ocean Service

Last edited on Sat May 30th, 2009 07:14 pm by sydneyst


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