World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Revisiting Four Scientific Debates in Ocean Acidification Research : Volume 9, Issue 3 (01/03/2012)

By Andersson, A. J.

Click here to view

Book Id: WPLBN0003983251
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Revisiting Four Scientific Debates in Ocean Acidification Research : Volume 9, Issue 3 (01/03/2012)  
Author: Andersson, A. J.
Volume: Vol. 9, Issue 3
Language: English
Subject: Science, Biogeosciences
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Mackenzie, F. T., & Andersson, A. J. (2012). Revisiting Four Scientific Debates in Ocean Acidification Research : Volume 9, Issue 3 (01/03/2012). Retrieved from http://ebook.worldlibrary.net/


Description
Description: Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0202, USA. In recent years, ocean acidification has gained continuously increasing attention from scientists and a number of stakeholders and has raised serious concerns about its effects on marine organisms and ecosystems. With the increase in interest, funding resources, and the number of scientific investigations focusing on this environmental problem, increasing amounts of data and results have been produced, and a progressively growing and more rigorous understanding of this problem has begun to develop. Nevertheless, there are still a number of scientific debates, and in some cases misconceptions, that keep reoccurring at a number of forums in various contexts. In this article, we revisit four of these topics that we think require further thoughtful consideration including: (1) surface seawater CO2 chemistry in shallow water coastal areas, (2) experimental manipulation of marine systems using CO2 gas or by acid addition, (3) net versus gross calcification and dissolution, and (4) CaCO3 mineral dissolution and seawater buffering. As a summation of these topics, we emphasize that: (1) many coastal environments experience seawater pCO2 that is significantly higher than expected from equilibrium with the atmosphere and is strongly linked to biological processes; (2) addition of acid, base or CO2 gas to seawater can all be useful techniques to manipulate seawater chemistry in ocean acidification experiments; (3) estimates of calcification or CaCO3 dissolution based on present techniques are measuring the net of gross calcification and dissolution; and (4) dissolution of metastable carbonate mineral phases will not produce sufficient alkalinity to buffer the pH and carbonate saturation state of shallow water environments on timescales of decades to hundreds of years to the extent that any potential negative effects on marine calcifiers will be avoided.

Summary
Revisiting four scientific debates in ocean acidification research

Excerpt
Allemand, D., Tambutté, E., Zoccola, D., and Tambutté, S.: Coral calcification, cells to reefs, in: Coral Reefs: An Ecosystem in Transition, edited by: Dubinsky, S. and Stambler, N., Springer Science+Business Media B. V., 119–150, 2011.; Andersson, A. J., Mackenzie, F. T., and Ver, L. M.: Solution of shallow-water carbonates: an insignificant buffer against rising atmospheric CO2, Geology, 31, 513–516, 2003.; Andersson, A. J., Mackenzie, F. T., and Lerman, A.: Coastal ocean and carbonate systems in the high CO2 world of the Anthropocene, Am. J. Sci., 305, 875–918, 2005.; Andersson, A. J., Mackenzie, F. T., and Lerman, A.: Coastal ocean CO2-carbonic acid-carbonate sediment system of the Anthropocene, Global Biogeochem. Cy., 20, GB1S92, doi:10.1029/2005GB002506, 2006.; Andersson, A. J., Bates, N. R., and Mackenzie, F. T.: Dissolution of carbonate sediments under rising pCO2 and ocean acidification: observations from Devil's Hole, Bermuda, Aquat. Geochem., 13, 237–264, 2007.; Andersson, A. J., Mackenzie, F. T., and Bates, N. R.: Life on the margin: implications of ocean acidification on Mg-calcite, high latitude and cold-water marine calcifiers, Mar. Ecol.-Prog. Ser., 373, 265–273, 2008.; Andersson, A. J., Kuffner, I. B., Mackenzie, F. T., Jokiel, P. L., Rodgers, K. S., and Tan, A.: Net Loss of CaCO3 from a subtropical calcifying community due to seawater acidification: mesocosm-scale experimental evidence, Biogeosciences, 6, 1811–1823, doi:10.5194/bg-6-1811-2009, 2009.; Andersson, A. J., Mackenzie, F. T., and Gattuso, J.-P.: Effects of ocean acidification on benthic processes, organisms, and ecosystems, in: Ocean Acidification, edited by: Gattuso, J.-P. and Hansson, L., Oxford University Press, 122–153, 2011.; Broecker, W. S. and Takahashi, T.: Calcium carbonate precipitation on the Bahama Banks, J. Geophys. Res., 71, 1575–1602, 1966.; Anthony, K. R. N., Kleypas, J., and Gattuso J.-P.: Coral reefs modify the carbon chemistry of their seawater: implications for the impacts of ocean acidification, Glob. Change Biol., 17, 3655–3666, doi:10.1111/j.1365-2486.2011.02510.x, 2011.; Archer, D., Kheshgi, H., and Maier-Reimer, E.: Dynamics of fossil fuel CO2 neutralization by marine CaCO3, Global Biogeochem. Cy., 12, 259–276, 1998.; Bacastow, R. D. and Keeling, C. D.: Atmospheric carbon dioxide and radiocarbon in the natural carbon cycle. II. Changes AD1700 to 2070 as deduced from a geochemical model, in: Carbon and the Biosphere, edited by: Woodwell, G. M. and Pecan, E. V., US Atomic Energy Commision, Washington DC, 86–135, 1973.; Barnes, D. J. and Cuff, C.: Solution of reef rock buffers seawater against rising atmospheric CO2, in: Proceedings of the Ninth International Coral Reef Symposium Abstracts, edited by: Hopley, D., Hopley, M., Tamelander, J., and Done, T., State Ministry for the Environment, Indonesia, p. 248, 2000.; Barry, J. P., Tyrell, T., Hansson, L., Plattner, G.-K., and Gattuso, J.-P.: Atmospheric CO2 targets for ocean acidification perturbation experiments, in: Guide to Best Practices in Ocean Acidification Reseach and Data Reporting, edited by: Riebesell, U., Fabry, V. J., Hansson, L., and Gattuso, J.-P., Luxembourg, Office for Official Publications of the European Communities, 53–66, 2010.; Bates, N. R., Amat, A., and Andersson, A. J.: Feedbacks and responses of coral calcification on the Bermuda reef system to seasonal changes in biological processes and ocean acidification, Biogeosciences, 7, 2509–2530, doi:10.5194/bg-7-2509-2010

 

Click To View

Additional Books


  • Buletinul Societatii De Sciinte Din Bucu... Volume: v.6, 1897-98 (by )
  • Editorial Note Effects of Water Discharg... (by )
  • Fluorescence and Absorption Properties o... (by )
  • Sensors for Observing Ecosystem Status :... (by )
  • A Parameterization of Respiration in Fro... (by )
  • Effects of Land Use Intensity on the Ful... (by )
  • Asynchronism in Leaf and Wood Production... (by )
  • Evolution of Ancient Lake Ohrid: a Tecto... (by )
  • Carbon Storage Versus Albedo Change: Rad... (by )
  • An Isotopic (Δ14C, Δ13C, and Δ15N) Inves... (by )
  • Remote Detection of Water Property Chang... (by )
  • Oxygen and Indicators of Stress for Mari... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.