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  • PANGAEA  (32)
  • ASLO (Association for the Sciences of Limnology and Oceanography)  (1)
  • CSIRO
  • 2020-2024  (33)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Differential effects of elevated p CO 2 and warming on marine phytoplankton stoichiometry (2022)
    ASLO (Association for the Sciences of Limnology and Oceanography) | Wiley
    Details
    Publication Date: 2024-02-07
    Description: Phytoplankton stand at the base of the marine food-web, and play a major role in global carbon cycling. Rising CO2 levels and temperatures are expected to enhance growth and alter carbon:nutrient stoichiometry of marine phytoplankton, with possible consequences for the functioning of marine food-webs and the oceanic carbon pump. To date, however, the consistency of phytoplankton stoichiometric responses remains unclear. We therefore performed a meta-analysis on data from experimental studies on stoichiometric responses of marine phytoplankton to elevated pCO2 and 3–5° warming under nutrient replete and limited conditions. Our results demonstrate that elevated pCO2 increased overall phytoplankton C:N (by 4%) and C:P (by 9%) molar ratios under nutrient replete conditions, as well as phytoplankton growth rates (by 6%). Nutrient limitation amplified the CO2 effect on C:N and C:P ratios, with increases to 27% and 17%, respectively. In contrast to elevated pCO2, warming did not consistently alter phytoplankton elemental composition. This could be attributed to species- and study-specific increases and decreases in stoichiometry in response to warming. While our observed moderate CO2-driven changes in stoichiometry are not likely to drive marked changes in food web functioning, they are in the same order of magnitude as current and projected estimations of oceanic carbon export. Therefore, our results may indicate a stoichiometric compensation mechanism for reduced oceanic carbon export due to declining primary production in the near future
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
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    PAPER (OCEANREP)
  • 2
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    Swimming speed of two phytoplankton species, Rhodomonas salina and Teleaulax sp., and the heterotrophic dinoflagellate Oxyrrhis marina (2020)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Description: Swimming speed of two phytoplankton species, Rhodomonas salina and Teleaulax sp., grown in nutrient replete F/2 medium and in P-limited conditions, as well as swimming speed of the heterotrophic dinoflagellate Oxyrrhis marina either starved or fed with these four types of phytoplankton individually. In addition to the different culture and feeding conditions, the phytoplankton and dinoflagellates were incubated with the water from differently cultured organisms.
    Keywords: Method comment; Species; Speed, swimming; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 11288 data points
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    DATA PANGAEA
  • 3
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    (Supplement 3) Selective feeding of dinoflagellate in the FlowCam experiment (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Description: This dataset comprises data from two experiments analysed with two different tools, a FlowCam and a microscope. The heterotrophic dinoflagellate Oxyrrhis marina was subjected to different feeding treatments (starved, or fed with either F/2 nutrient reach, nitrogen-limited, or phosphorus-limited phytoplankton of the species Rhodomonas salina). The carbon:nitrogen:phosphorus stoichiometry of the different phytoplankton and dinoflagellate cultures was measured. The nitrogen-limited and phosphorus-limited phytoplankton were mixed and the mixture was offered as food to the dinoflagellates previously fed on either nitrogen-limited, or phosphorus-limited phytoplankton. The selective feeding of the dinoflagellate on the two mixed algal qualities was measured.
    Keywords: FlowCam; Nitrogen; Phosphorus; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 90 data points
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    DATA PANGAEA
  • 4
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    (Supplement 4) Selective feeding of dinoflagellate in the Microscopy experiment (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-24
    Description: This dataset comprises data from two experiments analysed with two different tools, a FlowCam and a microscope. The heterotrophic dinoflagellate Oxyrrhis marina was subjected to different feeding treatments (starved, or fed with either F/2 nutrient reach, nitrogen-limited, or phosphorus-limited phytoplankton of the species Rhodomonas salina). The carbon:nitrogen:phosphorus stoichiometry of the different phytoplankton and dinoflagellate cultures was measured. The nitrogen-limited and phosphorus-limited phytoplankton were mixed and the mixture was offered as food to the dinoflagellates previously fed on either nitrogen-limited, or phosphorus-limited phytoplankton. The selective feeding of the dinoflagellate on the two mixed algal qualities was measured.
    Keywords: Cell density; Microscopy; Replicate; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 80 data points
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    DATA PANGAEA
  • 5
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    Mesocosm experiment 2013 on effects of increased CO2 concentration on nutrient limited coastal summer plankton: Microzooplankton biovolume (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-24
    Description: 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.
    Keywords: Baltic Sea; BIOACID; Biological Impacts of Ocean Acidification; Cell, diameter; Cell, length; Cell biovolume; ciliates; Dinoflagellates; global warming; mesocosm; Ocean acidification; Taxon/taxa
    Type: Dataset
    Format: text/tab-separated-values, 1414 data points
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    DATA PANGAEA
  • 6
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    (Supplement 1) Phytoplankton and dinoflagellate stoichiometry in the FlowCam experiment (2020)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-06-19
    Description: This dataset comprises data from two experiments analysed with two different tools, a FlowCam and a microscope. The heterotrophic dinoflagellate Oxyrrhis marina was subjected to different feeding treatments (starved, or fed with either F/2 nutrient reach, nitrogen-limited, or phosphorus-limited phytoplankton of the species Rhodomonas salina). The carbon:nitrogen:phosphorus stoichiometry of the different phytoplankton and dinoflagellate cultures was measured. The nitrogen-limited and phosphorus-limited phytoplankton were mixed and the mixture was offered as food to the dinoflagellates previously fed on either nitrogen-limited, or phosphorus-limited phytoplankton. The selective feeding of the dinoflagellate on the two mixed algal qualities was measured.
    Keywords: Carbon/Nitrogen ratio; Carbon/Phosphorus ratio; Carbon per cell; FlowCam; Nitrogen/Phosphorus ratio; Nitrogen per cell; Phosphorus per cell; Replicate; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 440 data points
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    DATA PANGAEA
  • 7
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    (Supplement 2) Phytoplankton and dinoflagellate stoichiometry in the Microscopy experiment (2020)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-06-19
    Description: This dataset comprises data from two experiments analysed with two different tools, a FlowCam and a microscope. The heterotrophic dinoflagellate Oxyrrhis marina was subjected to different feeding treatments (starved, or fed with either F/2 nutrient reach, nitrogen-limited, or phosphorus-limited phytoplankton of the species Rhodomonas salina). The carbon:nitrogen:phosphorus stoichiometry of the different phytoplankton and dinoflagellate cultures was measured. The nitrogen-limited and phosphorus-limited phytoplankton were mixed and the mixture was offered as food to the dinoflagellates previously fed on either nitrogen-limited, or phosphorus-limited phytoplankton. The selective feeding of the dinoflagellate on the two mixed algal qualities was measured.
    Keywords: Carbon/Nitrogen ratio; Carbon/Phosphorus ratio; Carbon per cell; Microscopy; Nitrogen/Phosphorus ratio; Nitrogen per cell; Phosphorus per cell; Replicate; Species; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 126 data points
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    DATA PANGAEA
  • 8
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    Cellular elemental stoichiometry of two phytoplankton species, Rhodomonas salina and Teleaulax sp., and the heterotrophic dinoflagellate Oxyrrhis marina (2020)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-06-19
    Description: Cellular elemental stoichiometry of two phytoplankton species, Rhodomonas salina and Teleaulax sp., grown in nutrient replete F/2 medium and in P-limited conditions, as well as cellular elemental stoichiometry of the heterotrophic dinoflagellate Oxyrrhis marina fed with these four types of phytoplankton individually.
    Keywords: Carbon per cell; Nitrogen per cell; Phosphorus per cell; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 112 data points
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    DATA PANGAEA
  • 9
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    Elemental and biochemical contents of the diets of the copepod Temora longicornis (2022)
    PANGAEA
    Details
    Publication Date: 2023-07-06
    Keywords: assimilation; Carbon, organic, particulate mass; Carbon/Nitrogen ratio; Carbon per cell; Cells, total; compound-specific stable isotope analysis; copepod; DATE/TIME; Diatoms; Dinoflagellates; elemental composition; Experiment; Experimental treatment; Fatty acid as carbon; Fatty acid as carbon per cell; Fatty acid per cell; fatty acids; Fatty acids, total; German Bight, North Sea; Helgoland; HelgolandRoads_temora_longicornis_2016; Kabeltonne; Lipid; Nitrogen, organic, particulate mass; Nitrogen per cell; North Sea; Number of cells; Replicate; stable carbon isotopes δ13C; turnover; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 288 data points
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    DATA PANGAEA
  • 10
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    Fatty acid contents of the diets of the copepod Temora longicornis (2022)
    PANGAEA
    Details
    Publication Date: 2023-07-06
    Keywords: assimilation; Atomic weight; Atom percent; Carbon, number of atoms; Cells, total; compound-specific stable isotope analysis; copepod; DATE/TIME; Diatoms; Dinoflagellates; elemental composition; Experiment; Experimental treatment; Fatty acid, common name; Fatty acid, IUPAC nomenclature; Fatty acid, n-x nomenclature; Fatty acid as carbon per cell; Fatty acid as percentage of total fatty acids; Fatty acid content; Fatty acid per cell; fatty acids; Fatty acids, total; Fatty acids, δ13C; Gas chromatography, Agilent 6890; GC-IRMS/ Thermo Delta V plus; German Bight, North Sea; Helgoland; HelgolandRoads_temora_longicornis_2016; Hydrogen, number of atoms; Kabeltonne; Lipid; North Sea; Number of cells; Oxygen, number of atoms; Replicate; stable carbon isotopes δ13C; turnover; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 7749 data points
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    DATA PANGAEA
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