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Aragonite undersaturation in the Arctic Ocean: effects of ocean acidification and sea ice melt
Yamamoto-Kawai, M.; McLaughlin, F.A.; Carmack, E.C.; Nishino, S.; Shimada, K. (2009). Aragonite undersaturation in the Arctic Ocean: effects of ocean acidification and sea ice melt. Science (Wash.) 326(5956): 1098-1100. https://dx.doi.org/10.1126/science.1174190
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075; e-ISSN 1095-9203, more
Peer reviewed article  

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Keyword
    Marine/Coastal

Authors  Top 
  • Yamamoto-Kawai, M.
  • McLaughlin, F.A.
  • Carmack, E.C.
  • Nishino, S.
  • Shimada, K.

Abstract
    The increase in anthropogenic carbon dioxide emissions and attendant increase in ocean acidification and sea ice melt act together to decrease the saturation state of calcium carbonate in the Canada Basin of the Arctic Ocean. In 2008, surface waters were undersaturated with respect to aragonite, a relatively soluble form of calcium carbonate found in plankton and invertebrates. Undersaturation was found to be a direct consequence of the recent extensive melting of sea ice in the Canada Basin. In addition, the retreat of the ice edge well past the shelf-break has produced conditions favorable to enhanced upwelling of subsurface, aragonite-undersaturated water onto the Arctic continental shelf. Undersaturation will affect both planktonic and benthic calcifying biota and therefore the composition of the Arctic ecosystem.

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