Ocean acidification increases the accumulation of toxic phenolic compounds across trophic levels
journal contributionposted 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.
Publication titleNature Communications
Department/SchoolInstitute for Marine and Antarctic Studies
PublisherNature Publishing Group
Place of publicationUnited Kingdom
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