[Vision2020] Estuarine, Coastal and Shelf Science: "The combined effects of ocean acidification, mixing, and respiration on pH and carbonate saturation in an urbanized estuary"

[Ted Moffett]

*Below is a source for the already accepted for publication science article
previously mentioned in the article from NOAA on acidification of waters in
Puget Sound under the subject heading "Scientists Find Rising Carbon Dioxide
and ‘Acidified’ Waters in Puget Sound:"*
**
*
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=9faafb7a7f17ae9f2661145004a27869
*
**
*The combined effects of ocean acidification, mixing, and respiration on pH
and carbonate saturation in an urbanized estuary *
**
*

Richard A. Feelya<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff1>,
[image: Corresponding Author Contact
Information]<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#cor1>,
[image: E-mail The Corresponding Author] <richard.a.feely at noaa.gov>, Simone
R. Alina<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff1>,
[image: E-mail The Corresponding Author] <simone.r.alin at noaa.gov>, Jan
Newtonb<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff2>,
[image: E-mail The Corresponding Author] <newton at apl.washington.edu>,
Christopher
L. Sabinea<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff1>,
[image: E-mail The Corresponding Author] <chris.sabine at noaa.gov>, Mark
Warnerc<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff3>,
[image: E-mail The Corresponding Author] <warner at u.washington.edu>, Allan
Devolc<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff3>,
[image: E-mail The Corresponding Author] <devol at u.washington.edu>, Christopher
Kresd<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff4>,
[image: E-mail The Corresponding Author] <ckre461 at ecy.wa.gov> and Carol
Maloyd<http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-5033Y00-2&_user=10&_coverDate=08%2F10%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1400514594&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVer#aff4>,
[image: E-mail The Corresponding Author] <cfal461 at ecy.wa.gov>

a Pacific Marine Environmental Laboratory/NOAA, 7600 Sand Point Way NE,
Seattle, WA 98115, USA

b Applied Physics Laboratory, University of Washington, Box 355640, Seattle,
WA 98105, USA

c School of Oceanography, University of Washington, Box 355351, Seattle, WA
98195, USA

d Washington State Department of Ecology, PO Box 47710, Olympia, WA
98504-7710, USA
Received 18 October 2009;
accepted 7 May 2010.
Available online 15 May 2010.

  Abstract

Puget Sound is a large estuary complex in the U.S. Pacific Northwest that is
home to a diverse and economically important ecosystem threatened by
anthropogenic impacts associated with climate change, urbanization, and
ocean acidification. While ocean acidification has been studied in oceanic
waters, little is known regarding its status in estuaries. Anthropogenically
acidified coastal waters upwelling along the western North American
continental margin can enter Puget Sound through the Strait of Juan de Fuca.
In order to study the combined effects of ocean acidification and other
natural and anthropogenic processes on Puget Sound waters, we made the first
inorganic carbon measurements in this estuary on two survey cruises in
February and August of 2008. Observed pH and aragonite saturation state
values in surface and subsurface waters were substantially lower in parts of
Puget Sound than would be expected from anthropogenic carbon dioxide (CO2)
uptake alone. We estimate that ocean acidification can account for 24–49% of
the pH decrease in the deep waters of the Hood Canal sub-basin of Puget
Sound relative to estimated pre-industrial values. The remaining change in
pH between when seawater enters the sound and when it reaches this deep
basin results from remineralization of organic matter due to natural or
anthropogenically stimulated respiration processes within Puget Sound. Over
time, however, the relative impact of ocean acidification could increase
significantly, accounting for 49–82% of the pH decrease in subsurface waters
for a doubling of atmospheric CO2. These changes may have profound impacts
on the Puget Sound ecosystem over the next several decades. These estimates
suggest that the role ocean acidification will play in estuaries may be
different from the open ocean.

Keywords: acidification; pH; estuary; saturation; carbonate minerals;
respiration
*
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Vision2020 Post: Ted Moffett
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