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Gutowska, Magdalena A; Pörtner, Hans-Otto; Melzner, Frank (2010): (Fig. 3) Sepia officinalis standard metobolic rate and seawater pH (NBS) during experiments, 2008. PANGAEA,, In supplement to: Gutowska, MA et al. (2008): Growth and calcification in the cephalopod Sepia officinalis under elevated seawater pCO2. Marine Ecology Progress Series, 373, 303-309,

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Ocean acidification and associated changes in seawater carbonate chemistry negatively influence calcification processes and depress metabolism in many calcifying marine invertebrates. We present data on the cephalopod mollusc Sepia officinalis, an invertebrate that is capable of not only maintaining calcification, but also growth rates and metabolism when exposed to elevated partial pressures of carbon dioxide (pCO2). During a 6 wk period, juvenile S. officinalis maintained calcification under ~4000 and ~6000 ppm CO2, and grew at the same rate with the same gross growth efficiency as did control animals. They gained approximately 4% body mass daily and increased the mass of their calcified cuttlebone by over 500%. We conclude that active cephalopods possess a certain level of pre-adaptation to long-term increments in carbon dioxide levels. Our general understanding of the mechanistic processes that limit calcification must improve before we can begin to predict what effects future ocean acidification will have on calcifying marine invertebrates.
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1IdentificationIDGutowska, Magdalena AGroup
2Experimental treatmentExp treatGutowska, Magdalena A
3Experiment dayExp daydayGutowska, Magdalena A
4pHpHGutowska, Magdalena AWTW Oxi 340i probeNBS scale
5IdentificationIDGutowska, Magdalena AAnimal
6Metabolic rate of oxygen, standardMet rate O2µmol/min/gGutowska, Magdalena AMeasured
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