One of the Sonde sensors will be measuring pH levels at Race Rocks. Meanwhile we are starting to prepare this file on pH as an abiotic factor.

More to come:

Useful Links: THE EFFECT OF HYDROGEN ION CONCENTRATION UPON THE INDUCTION OF POLARITY IN FUCUS EGGS

I. INCREASED HYDROGEN ION CONCENTRATION AND THE INTENSITY OF MUTUAL INDUCTIONS BY NEIGHBORING EGGS OF FUCUS FURCATUS


D. M. Whitaker

http://www.jgp.org/cgi/content/abstract/20/3/491

1. THE EFFECT OF ALKALINITY UPON MUTUAL INFLUENCES DETERMINING THE DEVELOPMENTAL AXIS IN FUCUS EGGS
D. M. WHITAKER 1 and E. W. LOWRANCE 1

1. When two eggs of Fucus furcatus develop in the dark within 0.3-4 egg diameters of each other, the point of rhizoid origin and the developmental axis are influenced by the presence of the neighbor.
2. When the pH of the medium is below approximately 7.6, the rhizoids tend to form on the sides of the eggs toward the neighbor. When it is above 7.6, they tend to form on the sides away from the neighbor, most markedly at pH 8.4.
3. The effect is stronger the closer the eggs, within the limits 0.3-4 egg diameters.

http://www.biolbull.org/cgi/content/abstract/78/3/407

4.Discovering the Effects of CO2Levels on Marine Life and Global Climate

In recent months, the media have begun to focus on another effect of rising atmospheric CO2 concentrations: the effect of increasing CO2 levels on marine life. The oceans absorb 22 million tons of carbon dioxide every day, writes Richard Feely, a scientist with the National Oceanic and Atmospheric Administration (NOAA) in a 2006 science brief, "Carbon Dioxide and Our Ocean Legacy" (100 KB PDF). Although this absorption is said to significantly reduce atmospheric greenhouse-gas levels, some scientists have observed that such an excess of CO2 may be altering the chemistry and biology of the world's oceans.By Kate Bradshaw
http://soundwaves.usgs.gov/2007/01/

5. Dropping pH in the Oceans Causing a Rising Tide of Alarm
Tundi Agardy, Ph.D.

http://www.thew2o.net/archive_new.html?id=28

6.Researchers report on possible biological effects
of deep-sea CO2 sequestration

.http://www.mbari.org/news/news_releases/2001/oct12_seibel.html

7.Bush's CO2 Dumping Plan Could Devastate Sea Life

http://www.scienceagogo.com/news/20031019174538data_trunc_sys.shtml

8.SEAKEEPERS PROVIDING KEY DATA ON OCEAN ACIDIFICATION AFFECT ON GLOBAL WARMING

http://www.seakeepers.org/featured-ocean-acidification.php