2014-01-15. Key species of algae shows effects of climate change over time.

posted Jan 21, 2014, 4:35 PM by Angela Miller   [ updated Jan 24, 2014, 1:20 PM ]
For GSS Losing Biodiversity chapter 7. Excerpt: A study of marine life in the temperate coastal waters of the northeast Pacific Ocean shows a reversal of competitive dominance among species of algae, suggesting that increased ocean acidification caused by global climate change is altering biodiversity.
The study, published online January 15, 2014, in the journal Ecology Letters, examined competitive dynamics among crustose coralline algae, a group of species living in the waters around Tatoosh Island, Washington. These species of algae grow skeletons made of calcium carbonate, much like other shelled organisms such as mussels and oysters.
As the ocean absorbs more carbon dioxide from the atmosphere, the water becomes more acidic. Crustose coralline algae and shellfish have difficulty producing their skeletons and shells in such an environment, and can provide an early indicator of how increasing ocean acidification affects marine life...  http://www.uchospitals.edu/news/2014/20140115-mccoy.html University of Chicago Medical Center