Growth and calcification in the cephalopod Sepia officinalis under elevated seawater pCO2

Gutowska, M. A., Pörtner, H.O. and Melzner, Frank (2008) Growth and calcification in the cephalopod Sepia officinalis under elevated seawater pCO2 Marine Ecology Progress Series, 373 . pp. 303-309. DOI 10.3354/meps07782.

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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.

Document Type: Article
Keywords: Zoology; Marine Biology; Ocean acidification; Calcification; Metabolism; Growth; Marine invertebrate; Cephalopod; Sepia officinalis
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-JRG-A1 Ocean Acidification
OceanRep > The Future Ocean - Cluster of Excellence
OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BI Biological Oceanography
Kiel University
Refereed: Yes
DOI etc.: 10.3354/meps07782
ISSN: 0171-8630
Projects: Future Ocean
Date Deposited: 16 Jan 2009 09:03
Last Modified: 06 Jul 2012 15:01

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