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  • 577.7  (1)
  • Acartia sp., nauplii; Copepoda; Copepoda, adult; Copepodites; DATE/TIME; Eggs; Eurytemora sp., nauplii; Experiment day; Kiel_Bight_2016; Kieler Bucht; MESO; Mesocosm experiment; Mesocosm label; Nauplii; Treatment  (1)
  • Alkalinity, total; Alkalinity, total, standard error; Aragonite saturation state; Bicarbonate ion; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbon, inorganic, particulate, per cell; Carbon, inorganic, particulate, population yield; Carbon, organic, particulate, per cell; Carbon, organic, particulate, population yield; Carbon, organic, particulate/Nitrogen, organic, particulate ratio; Carbon, organic, particulate/Phosphorus, organic, particulate ratio; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Emiliania huxleyi; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Haptophyta; Laboratory experiment; Macro-nutrients; Nitrogen, organic, particulate, per cell; Nitrogen, organic, particulate/Phosphorus, organic, particulate ratio; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Particulate inorganic carbon/particulate organic carbon ratio; Particulate inorganic carbon production per cell; Particulate organic carbon production per cell; pH; Phosphorus, organic, particulate, per cell; Phytoplankton; Registration number of species; Salinity; Single species; Species; Treatment: nutrients; Treatment: partial pressure of carbon dioxide; Treatment: temperature; Type; Uniform resource locator/link to reference  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    The species composition of Antarctic phytoplankton interpreted in terms of Tilman's competition theory (1988)
    Springer
    Oecologia 77 (1988), S. 464-467 
    Details
    ISSN: 1432-1939
    Keywords: Antarctic phytoplankton ; Competition ; Resource ratios ; Nutrients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An attempt was made, to test for the impact of resource competition on Antarctic marine phytoplankton. According to theory, species composition near competitive equilibrium should be determined by the ratios of limiting resources. Enrichment bioassays identified silicon and nitrogen as limiting nutrients for some of the most important phytoplankton species during early austral summer in the region near the Antarctic Peninsula. Together with the generally acknowledged limiting resource light, this gave three meaningful ratios of essential resources (Si:N, Si:light, N:light) and one ratio of substitutable resources (NO3:NH4). Phytoplankton species assemblages were found to be well separated by the ratios of the essential resources and by mixing depth. Nine out of 12 individual species were found to be separated along at least one of the gradients of resource ratios. Where comparison with competition experiments was available, predicted and realized distributions of species were compatible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00377261
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Tackling the jelly web: Trophic ecology of gelatinous zooplankton in oceanic food webs of the eastern tropical Atlantic assessed by stable isotope analysis (2021)
    Details
    Publication Date: 2021-11-03
    Description: Gelatinous zooplankton can be present in high biomass and taxonomic diversity in planktonic oceanic food webs, yet the trophic structuring and importance of this “jelly web” remain incompletely understood. To address this knowledge gap, we provide a holistic trophic characterization of a jelly web in the eastern tropical Atlantic, based on δ13C and δ15N stable isotope analysis of a unique gelatinous zooplankton sample set. The jelly web covered most of the isotopic niche space of the entire planktonic oceanic food web, spanning 〉 3 trophic levels, ranging from herbivores (e.g., pyrosomes) to higher predators (e.g., ctenophores), highlighting the diverse functional roles and broad possible food web relevance of gelatinous zooplankton. Among gelatinous zooplankton taxa, comparisons of isotopic niches pointed to the presence of differentiation and resource partitioning, but also highlighted the potential for competition, e.g., between hydromedusae and siphonophores. Significant differences in spatial (seamount vs. open ocean) and depth-resolved patterns (0–400 m vs. 400–1000 m) pointed to additional complexity, and raise questions about the extent of connectivity between locations and differential patterns in vertical coupling between gelatinous zooplankton groups. Added complexity also resulted from inconsistent patterns in trophic ontogenetic shifts among groups. We conclude that the broad trophic niche covered by the jelly web, patterns in niche differentiation within this web, and substantial complexity at the spatial, depth, and taxon level call for a more careful consideration of gelatinous zooplankton in oceanic food web models. In light of climate change and fishing pressure, the data presented here also provide a valuable baseline against which to measure future trophic observations of gelatinous zooplankton communities in the eastern tropical Atlantic.
    Keywords: 577.7 ; eastern tropical Atlantic ; gelatinous zooplankton ; isotopic pattern ; food web characterization
    Language: English
    Type: map
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    CITATION GEO-LEO
  • 3
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    Copepod data from 2016 mesocosm experiment manipulating Si:N and copepod grazing on Baltic Sea plankton community (2020)
    PANGAEA
    Details
    Publication Date: 2023-08-30
    Description: Phytoplankton, microzooplankton, copepod and dissolved nutrient data from a mesocosm experiment, which took place in summer 2016. A range of Si:N ratios and two levels of copepod grazing pressure were manipulated on a natural plankton community in Kiel Bay, Southern Baltic Sea, Germany.
    Keywords: Acartia sp., nauplii; Copepoda; Copepoda, adult; Copepodites; DATE/TIME; Eggs; Eurytemora sp., nauplii; Experiment day; Kiel_Bight_2016; Kieler Bucht; MESO; Mesocosm experiment; Mesocosm label; Nauplii; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 220 data points
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    DATA PANGAEA
  • 4
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    Seawater carbonate chemistry and elemental composition and growth rates of Emiliania huxleyi (2018)
    PANGAEA
    Details
    Publication Date: 2024-03-22
    Keywords: Alkalinity, total; Alkalinity, total, standard error; Aragonite saturation state; Bicarbonate ion; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbon, inorganic, particulate, per cell; Carbon, inorganic, particulate, population yield; Carbon, organic, particulate, per cell; Carbon, organic, particulate, population yield; Carbon, organic, particulate/Nitrogen, organic, particulate ratio; Carbon, organic, particulate/Phosphorus, organic, particulate ratio; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Emiliania huxleyi; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Haptophyta; Laboratory experiment; Macro-nutrients; Nitrogen, organic, particulate, per cell; Nitrogen, organic, particulate/Phosphorus, organic, particulate ratio; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Particulate inorganic carbon/particulate organic carbon ratio; Particulate inorganic carbon production per cell; Particulate organic carbon production per cell; pH; Phosphorus, organic, particulate, per cell; Phytoplankton; Registration number of species; Salinity; Single species; Species; Treatment: nutrients; Treatment: partial pressure of carbon dioxide; Treatment: temperature; Type; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 2385 data points
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    DATA PANGAEA
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