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Plankton responses to ocean acidification: the role of nutrient limitation

Citation

Alvarez-Fernandez, S and Bach, LT and Taucher, J and Riebesell, U and Sommer, U and Aberle, N and Brussaard, CPD and Boersma, M, Plankton responses to ocean acidification: the role of nutrient limitation, Progress in Oceanography, 165 pp. 11-18. ISSN 0079-6611 (2018) [Refereed Article]

Copyright Statement

Copyright 2018 Elsevier Ltd.

DOI: doi:10.1016/j.pocean.2018.04.006

Abstract

In situ mesocosm experiments on the effect of ocean acidification (OA) are an important tool for investigating potential OA-induced changes in natural plankton communities. In this study we combined results from various in-situ mesocosm studies in two different ocean regions (Arctic and temperate waters) to reveal general patterns of plankton community shifts in response to OA and how these changes are modulated by inorganic nutrient availability. Overall, simulated OA caused an increase in phytoplankton standing stock, which was more pronounced in smaller-sized taxa. This effect on primary producers was channelled differently into heterotroph primary consumers depending on the inorganic nutrient availability. Under limiting conditions, bacteria and micro-heterotrophs benefited with inconsistent responses of larger heterotrophs. During nutrient replete periods, heterotrophs were in general negatively affected, although there was an increase of some mesozooplankton developmental stages (i.e. copepodites). We hypothesize that changes in phytoplankton size distribution and community composition could be responsible for these food web responses.

Item Details

Item Type:Refereed Article
Keywords:ocean acidification, nutrient limitation, plankton
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Biological Oceanography
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
UTAS Author:Bach, LT (Dr Lennart Bach)
ID Code:133676
Year Published:2018
Web of Science® Times Cited:4
Deposited By:Ecology and Biodiversity
Deposited On:2019-07-05
Last Modified:2019-08-20
Downloads:0

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