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

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posted on 2023-05-18, 16:40 authored by Jin, P, Wang, T, Liu, N, Dupont, S, Beardall, J, Philip BoydPhilip Boyd, Riebensell, U, Gao, K
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.

History

Publication title

Nature Communications

Volume

6

Article number

8714

Number

8714

Pagination

1-6

ISSN

2041-1723

Department/School

Institute for Marine and Antarctic Studies

Publisher

Nature Publishing Group

Place of publication

United Kingdom

Rights statement

© 2016 Macmillan Publishers Licensed under Creative Commons Attribution 4.0 International License (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Repository Status

  • Open

Socio-economic Objectives

Ecosystem adaptation to climate change

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