CO2 sensitivity experiments are not sufficient to show an effect of ocean acidification

The ocean acidification (OA) literature is replete with laboratory studies that report species sensitivity to seawater carbonate chemistry in experimental treatments as an “effect of OA”. I argue that this is unintentionally misleading, since these studies do not actually demonstrate an effect of OA...

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Bibliographic Details
Published inICES journal of marine science Vol. 74; no. 4; pp. 926 - 928
Main Author McElhany, Paul
Format Journal Article
LanguageEnglish
Published 01.05.2017
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Summary:The ocean acidification (OA) literature is replete with laboratory studies that report species sensitivity to seawater carbonate chemistry in experimental treatments as an “effect of OA”. I argue that this is unintentionally misleading, since these studies do not actually demonstrate an effect of OA but rather show sensitivity to CO2. Documenting an effect of OA involves showing a change in a species (e.g. population abundance or distribution) as a consequence of anthropogenic changes in marine carbonate chemistry. To date, there have been no unambiguous demonstrations of a population level effect of anthropogenic OA, as that term is defined by the IPCC.
ISSN:1054-3139
1095-9289
DOI:10.1093/icesjms/fsw085