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| Titel |
Technical Note: Approaches and software tools to investigate the impact of ocean acidification |
| VerfasserIn |
J.-P. Gattuso, H. Lavigne |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 6, no. 10 ; Nr. 6, no. 10 (2009-10-08), S.2121-2133 |
| Datensatznummer |
250004034
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| Publikation (Nr.) |
 copernicus.org/bg-6-2121-2009.pdf |
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| Zusammenfassung |
| Although future changes in the seawater carbonate chemistry are well
constrained, their impact on marine organisms and ecosystems remains
poorly known. The biological response to ocean acidification is
a recent field of research as most purposeful experiments have only
been carried out in the late 1990s. The potentially dire consequences
of ocean acidification attract scientists and students with a limited
knowledge of the carbonate chemistry and its experimental
manipulation. Hence, some guidelines on carbonate chemistry
manipulations may be helpful for the growing ocean acidification
community to maintain comparability. Perturbation experiments are one
of the key approaches used to investigate the biological response to
elevated pCO2. They are based on measurements of
physiological or metabolic processes in organisms and communities
exposed to seawater with normal or altered carbonate
chemistry. Seawater chemistry can be manipulated in different ways
depending on the facilities available and on the question being
addressed. The goal of this paper is (1) to examine the benefits and
drawbacks of various manipulation techniques and (2) to describe a new
version of the R software package seacarb which includes new
functions aimed at assisting the design of ocean acidification
perturbation experiments. Three approaches closely mimic the on-going
and future changes in the seawater carbonate chemistry: gas bubbling,
addition of high-CO2 seawater as well as combined additions of
acid and bicarbonate and/or carbonate. |
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