Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects.
Plankton communities play a key role in the marine food web and are expected to be highly sensitive to ongoing environmental change. Oceanic uptake of anthropogenic carbon dioxide (CO2) causes pronounced shifts in marine carbonate chemistry and a decrease in seawater pH. These changes-summarized by...
Published in: | PLOS ONE |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2017
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pone.0169737 https://doaj.org/article/b552dd79ca5c45f6b65013b7644acab7 |
id |
ftdoajarticles:oai:doaj.org/article:b552dd79ca5c45f6b65013b7644acab7 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:b552dd79ca5c45f6b65013b7644acab7 2023-05-15T17:50:22+02:00 Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects. Jan Taucher Mathias Haunost Tim Boxhammer Lennart T Bach María Algueró-Muñiz Ulf Riebesell 2017-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0169737 https://doaj.org/article/b552dd79ca5c45f6b65013b7644acab7 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5298333?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0169737 https://doaj.org/article/b552dd79ca5c45f6b65013b7644acab7 PLoS ONE, Vol 12, Iss 2, p e0169737 (2017) Medicine R Science Q article 2017 ftdoajarticles https://doi.org/10.1371/journal.pone.0169737 2022-12-31T14:00:48Z Plankton communities play a key role in the marine food web and are expected to be highly sensitive to ongoing environmental change. Oceanic uptake of anthropogenic carbon dioxide (CO2) causes pronounced shifts in marine carbonate chemistry and a decrease in seawater pH. These changes-summarized by the term ocean acidification (OA)-can significantly affect the physiology of planktonic organisms. However, studies on the response of entire plankton communities to OA, which also include indirect effects via food-web interactions, are still relatively rare. Thus, it is presently unclear how OA could affect the functioning of entire ecosystems and biogeochemical element cycles. In this study, we report from a long-term in situ mesocosm experiment, where we investigated the response of natural plankton communities in temperate waters (Gullmarfjord, Sweden) to elevated CO2 concentrations and OA as expected for the end of the century (~760 μatm pCO2). Based on a plankton-imaging approach, we examined size structure, community composition and food web characteristics of the whole plankton assemblage, ranging from picoplankton to mesozooplankton, during an entire winter-to-summer succession. The plankton imaging system revealed pronounced temporal changes in the size structure of the copepod community over the course of the plankton bloom. The observed shift towards smaller individuals resulted in an overall decrease of copepod biomass by 25%, despite increasing numerical abundances. Furthermore, we observed distinct effects of elevated CO2 on biomass and size structure of the entire plankton community. Notably, the biomass of copepods, dominated by Pseudocalanus acuspes, displayed a tendency towards elevated biomass by up to 30-40% under simulated ocean acidification. This effect was significant for certain copepod size classes and was most likely driven by CO2-stimulated responses of primary producers and a complex interplay of trophic interactions that allowed this CO2 effect to propagate up the food web. Such ... Article in Journal/Newspaper Ocean acidification Copepods Directory of Open Access Journals: DOAJ Articles PLOS ONE 12 2 e0169737 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Jan Taucher Mathias Haunost Tim Boxhammer Lennart T Bach María Algueró-Muñiz Ulf Riebesell Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects. |
topic_facet |
Medicine R Science Q |
description |
Plankton communities play a key role in the marine food web and are expected to be highly sensitive to ongoing environmental change. Oceanic uptake of anthropogenic carbon dioxide (CO2) causes pronounced shifts in marine carbonate chemistry and a decrease in seawater pH. These changes-summarized by the term ocean acidification (OA)-can significantly affect the physiology of planktonic organisms. However, studies on the response of entire plankton communities to OA, which also include indirect effects via food-web interactions, are still relatively rare. Thus, it is presently unclear how OA could affect the functioning of entire ecosystems and biogeochemical element cycles. In this study, we report from a long-term in situ mesocosm experiment, where we investigated the response of natural plankton communities in temperate waters (Gullmarfjord, Sweden) to elevated CO2 concentrations and OA as expected for the end of the century (~760 μatm pCO2). Based on a plankton-imaging approach, we examined size structure, community composition and food web characteristics of the whole plankton assemblage, ranging from picoplankton to mesozooplankton, during an entire winter-to-summer succession. The plankton imaging system revealed pronounced temporal changes in the size structure of the copepod community over the course of the plankton bloom. The observed shift towards smaller individuals resulted in an overall decrease of copepod biomass by 25%, despite increasing numerical abundances. Furthermore, we observed distinct effects of elevated CO2 on biomass and size structure of the entire plankton community. Notably, the biomass of copepods, dominated by Pseudocalanus acuspes, displayed a tendency towards elevated biomass by up to 30-40% under simulated ocean acidification. This effect was significant for certain copepod size classes and was most likely driven by CO2-stimulated responses of primary producers and a complex interplay of trophic interactions that allowed this CO2 effect to propagate up the food web. Such ... |
format |
Article in Journal/Newspaper |
author |
Jan Taucher Mathias Haunost Tim Boxhammer Lennart T Bach María Algueró-Muñiz Ulf Riebesell |
author_facet |
Jan Taucher Mathias Haunost Tim Boxhammer Lennart T Bach María Algueró-Muñiz Ulf Riebesell |
author_sort |
Jan Taucher |
title |
Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects. |
title_short |
Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects. |
title_full |
Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects. |
title_fullStr |
Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects. |
title_full_unstemmed |
Influence of ocean acidification on plankton community structure during a winter-to-summer succession: An imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects. |
title_sort |
influence of ocean acidification on plankton community structure during a winter-to-summer succession: an imaging approach indicates that copepods can benefit from elevated co2 via indirect food web effects. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2017 |
url |
https://doi.org/10.1371/journal.pone.0169737 https://doaj.org/article/b552dd79ca5c45f6b65013b7644acab7 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_source |
PLoS ONE, Vol 12, Iss 2, p e0169737 (2017) |
op_relation |
http://europepmc.org/articles/PMC5298333?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0169737 https://doaj.org/article/b552dd79ca5c45f6b65013b7644acab7 |
op_doi |
https://doi.org/10.1371/journal.pone.0169737 |
container_title |
PLOS ONE |
container_volume |
12 |
container_issue |
2 |
container_start_page |
e0169737 |
_version_ |
1766157086559830016 |