Ocean acidification in the coastal ocean

The oceans play a crucial role in the global carbon cycle and store about one third of the anthropogenic carbon dioxide (CO2) emissions since 1800. When CO2 dissolves in seawater, it generates a decrease in pH and in the concentration of carbonate (CO32-) ions. Since pre-industrial time, surface ocean pH has declined by 0.1 unit and, according to model projections, a further decrease of 0.2-0.4 unit is anticipated for the end of the century. In the coastal ocean, the few available datasets suggest more complicated pH trends than in the open ocean due to various biogeochemical and hydrological processes. Although the coastal ocean only represents a small portion of the oceanic surface area, it exhibits high biological activities and an important biodiversity that may be affected in the coming decades in response to the ongoing and projected modifi cations of the carbonate chemistry. In this brief article, we present some information on the potential effect of ocean acidifi cation on key coastal organisms and communities, and provide a list of international and national projects looking at coastal ecosystems.

Gazeau F., Martin S., Hansson L., & Gattuso J.-P., 2011. Ocean acidifi cation in the coastal ocean. LOICZ INPRINT 3:5-14. Article.

 

0 Responses to “Ocean acidification in the coastal ocean”



  1. Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.




Subscribe to the RSS feed

Powered by FeedBurner

Follow AnneMarin on Twitter

Blog Stats

  • 1,441,015 hits

OA-ICC HIGHLIGHTS

Ocean acidification in the IPCC AR5 WG II

OUP book

Archives