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 2018 Elsevier Ltd.
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 Type:||Refereed Article|
|Keywords:||ocean acidification, nutrient limitation, plankton|
|Research Division:||Earth Sciences|
|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)|
|Web of Science® Times Cited:||4|
|Deposited By:||Ecology and Biodiversity|
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