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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/unesp/372931
Title: 
Ocean acidification impacts coral reefs
Author(s): 
National Oceanic and Atmospheric Administration
Language: 
eng
Description: 
  • The ocean is absorbing large amounts of carbon dioxide—a natural process. However, as carbon dioxide enters the ocean, it reacts with water to form acid. Subsequent chemical reactions that try to maintain a normal pH level in the ocean end up reducing the amount of calcium carbonate—a component in the skeletons of many organisms such as corals, lobsters, clams, and pteropods. Without calcium carbonate, these organisms cannot properly grown and reproduce. This animation shows model data of how the availability of calcium carbonate is predicted to decrease over the next century at a depth of 10 meters in the ocean—where most corals occur. Areas that are deep red are sufficiently acidic to dissolve calcium carbonate-based organisms. Most areas currently have enough calcium carbonate to support corals and other organisms, but all areas are predicted to decline by the year 2100 compared to pre-industrial values
  • Educação Superior::Ciências Biológicas::Ecologia
  • Ensino Médio::Biologia
  • Educação Superior::Ciências Exatas e da Terra::Oceanografia
Issue Date: 
  • 2-Apr-2011
  • 10-Apr-2012
  • 10-Apr-2012
  • 10-Apr-2012
Publisher: 
National Oceanic and Atmospheric Administration
Keywords: 
  • Coral reef
  • Ocean acidification
  • Educação Superior::Ciências Biológicas::Ecologia::Ecologia de Ecossistemas
  • Calcium carbonate
  • Educação Superior::Ciências Exatas e da Terra::Oceanografia::Interação entre os Organismos Marinhos e os Parâmetros Ambientais
  • Educação Básica::Ensino Médio::Biologia::Diversidade da vida e hereditariedade
Notes: 
Show model data of how the availability of calcium carbonate is predicted to decrease over the next century at a depth of 10 meters in the ocean — where most corals occur
Credits: 
- Duração: 0:16 minutos
Source: 
http://objetoseducacionais2.mec.gov.br/handle/mec/20981
URI: 
http://acervodigital.unesp.br/handle/unesp/372931
Rights: 
All animations and images accessed through this website are in the public domain and are freely available for reuse. Please credit NOAA, just those four letters, along with any other entities listed in the Copyright section for each resource
Type: 
outro
Appears in Collections:MEC - Objetos Educacionais (BIOE) - OE

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