Horn, Henriette G; Boersma, Maarten; Garzke, Jessica; Sommer, Ulrich; Aberle, Nicole (2020): Seawater carbonate chemistry and microzooplankton abundance [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.934135
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Abstract:
Aquatic ecosystems face a multitude of environmental stressors, including warming and acidification. While warming is expected to have a pronounced effect on plankton communities, many components of the plankton seem fairly robust towards realistic end-of-century acidification conditions. However, interactions of the two stressors and the inclusion of further factors such as nutrient concentration and trophic interactions are expected to change this outcome. We investigated the effects of warming and high CO2 on a nutrient-deplete late summer plankton community from the Kiel Fjord, Baltic Sea, using a mesocosm setup crossing two temperatures with a gradient of CO2. Phytoplankton and microzooplankton (MZP) growth rates as well as biomass, taxonomic composition, and grazing rates of MZP were analysed. We observed effects of high CO2, warming, and their interactions on all measured parameters. The occurrence and direction of the effects were dependent on the phytoplankton or MZP community composition. In addition, the abundance of small-sized phytoplankton was identified as one of the most important factors in shaping the MZP community composition. Overall, our results indicate that an estuarine MZP community used to strong natural fluctuations in CO2 can still be affected by a moderate increase in CO2 if it occurs in combination with warming and during a nutrient-deplete post-bloom situation. This highlights the importance of including trophic interactions and seasonality aspects when assessing climate change effects on marine zooplankton communities.
Keyword(s):
Supplement to:
Horn, Henriette G; Boersma, Maarten; Garzke, Jessica; Sommer, Ulrich; Aberle, Nicole (2020): High CO2 and warming affect microzooplankton food web dynamics in a Baltic Sea summer plankton community. Marine Biology, 167(5), https://doi.org/10.1007/s00227-020-03683-0
Related to:
Paul, Allanah Joy; Sommer, Ulrich; Paul, Carolin; Riebesell, Ulf (2018): Seawater carbonate chemistry and phytoplankton biomass during the BIOACID II indoor mesocosm study in the Kiel Fjord (Baltic Sea). PANGAEA, https://doi.org/10.1594/PANGAEA.901801
Paul, Carolin; Sommer, Ulrich; Garzke, Jessica; Moustaka-Gouni, Maria; Paul, Allanah Joy; Matthiessen, Birte (2015): Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature. PANGAEA, https://doi.org/10.1594/PANGAEA.848402
Paul, Carolin; Sommer, Ulrich; Garzke, Jessica; Moustaka-Gouni, Maria; Paul, Allanah Joy; Matthiessen, Birte (2016): Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature. PANGAEA, https://doi.org/10.1594/PANGAEA.869487
Original version:
Horn, Henriette G; Boersma, Maarten; Garzke, Jessica; Sommer, Ulrich; Aberle, Nicole (2021): Mesocosm experiment on effects of increased CO2 concentration on nutrient limited coastal summer plankton: Microzooplankton abundance. PANGAEA, https://doi.org/10.1594/PANGAEA.932132
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html
Horn, Henriette G; Boersma, Maarten; Garzke, Jessica; Sommer, Ulrich; Aberle, Nicole (2021): Mesocosm experiment 2013 on effects of increased CO2 concentration on nutrient limited coastal summer plankton: Microzooplankton biovolume. PANGAEA, https://doi.org/10.1594/PANGAEA.932165
Project(s):
Coverage:
Date/Time Start: 2013-08-16T00:00:00 * Date/Time End: 2013-09-13T00:00:00
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2021-07-28.
22.5 °C = warm treatment
16.5 °C = cold treatment
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2952 data points
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