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Ocean acidification increases the accumulation of toxic phenolic compounds across trophic levels

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  • Peng Jin

    (State Key Laboratory of Marine Environmental Science, Xiamen University
    Present address: Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.)

  • Tifeng Wang

    (State Key Laboratory of Marine Environmental Science, Xiamen University)

  • Nana Liu

    (State Key Laboratory of Marine Environmental Science, Xiamen University)

  • Sam Dupont

    (University of Gothenburg)

  • John Beardall

    (School of Biological Sciences, Monash University)

  • Philip W. Boyd

    (Institute for Marine and Antarctic Studies and Antarctic Climate & Ecosystems Cooperative Research Centre, University of Tasmania)

  • Ulf Riebesell

    (GEOMAR Helmholtz Centre for Ocean Research Kiel)

  • Kunshan Gao

    (State Key Laboratory of Marine Environmental Science, Xiamen University)

Abstract

Increasing atmospheric CO2 concentrations are causing ocean acidification (OA), altering carbonate chemistry with consequences for marine organisms. Here we show that OA increases by 46–212% the production of phenolic compounds in phytoplankton grown under the elevated CO2 concentrations projected for the end of this century, compared with the ambient CO2 level. At the same time, mitochondrial respiration rate is enhanced under elevated CO2 concentrations by 130–160% in a single species or mixed phytoplankton assemblage. When fed with phytoplankton cells grown under OA, zooplankton assemblages have significantly higher phenolic compound content, by about 28–48%. The functional consequences of the increased accumulation of toxic phenolic compounds in primary and secondary producers have the potential to have profound consequences for marine ecosystem and seafood quality, with the possibility that fishery industries could be influenced as a result of progressive ocean changes.

Suggested Citation

  • Peng Jin & Tifeng Wang & Nana Liu & Sam Dupont & John Beardall & Philip W. Boyd & Ulf Riebesell & Kunshan Gao, 2015. "Ocean acidification increases the accumulation of toxic phenolic compounds across trophic levels," Nature Communications, Nature, vol. 6(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9714
    DOI: 10.1038/ncomms9714
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