Moustaka-Gouni, Maria; Kormas, Konstantinos A; Scotti, Marco; Vardaka, S; Sommer, Ulrich (2016): Warming and acidification effects on planktonic heterotrophic Pico- and Nanoflagellates in a mesocosm experiment [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.873191
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Abstract:
We studied the response of the heterotrophic flagellate (HF) community to the combined impact of warming and ocean acidification in a mesocosm experiment with a plankton community from the western Baltic Sea. We performed a quantitative analysis of the response at the level of total biomass and size classes and a semi-quantitative one at the level of individual taxa. Total biomass of HF was significantly lower under higher temperatures while there was no significant effect of CO2. The mean biomass of the picoflagellates did not respond to temperature while the three nanoflagellate size classes (class limits 3, 5, 8, 15 ?m) responded negatively to warming while not responding to CO2. The taxon-level results indicate that heterotrophic flagellates do not form a homogenous trophic guild, as often assumed in pelagic food web studies. Instead, the heterotrophic flagellates formed a ?food web within the food web?. There was a pronounced succession of flagellates leading from a dominance of bacterivores and colloidal matter feeders before the phytoplankton bloom to omnivorous feeders preying upon phytoplankton and heterotrophic flagellates during and after the bloom. This complex intraguild predation patterns probably dampened the response to experimental treatments.
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Related to:
Moustaka-Gouni, Maria; Kormas, Konstantinos A; Scotti, Marco; Vardaka, S; Sommer, Ulrich (2016): Warming and Acidification Effects on Planktonic Heterotrophic Pico- and Nanoflagellates in a Mesocosm Experiment. Protist, 167(4), 389-410, https://doi.org/10.1016/j.protis.2016.06.004
Sommer, Ulrich; Paul, Carolin; Moustaka-Gouni, Maria (2014): Mesocosm experiment on warming and acidification effects on phytoplankton composition and cell size. PANGAEA, https://doi.org/10.1594/PANGAEA.840845
Original version:
Sommer, Ulrich; Moustaka-Gouni, Maria (2016): Warming and acidification effects on planktonic heterotrophic pico- and nanoflagellates in a mesocosm experiment. PANGAEA, https://doi.org/10.1594/PANGAEA.857999
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb
Project(s):
Coverage:
Latitude: 54.520000 * Longitude: 10.410000
Date/Time Start: 2012-10-19T00:00:00 * Date/Time End: 2012-11-12T00:00:00
Event(s):
Kiel_Bight * Latitude: 54.520000 * Longitude: 10.410000 * Date/Time Start: 2012-10-19T00:00:00 * Date/Time End: 2012-11-12T00:00:00 * Location: Bay of Kiel, Baltic Sea
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 is 2017-03-03.
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
11746 data points
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