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  • Binary Object; File content; mesocosm; North_Sea-Mesocosm; North Sea; PHREEQC; Planktotrons; Rare earth elements  (2)
  • ANT-XXVIII/2; ANT-XXVIII/4; ANT-XXVIII/5; BacGeoPac; BAT_SPE; Bering Sea; Canarias Sea; Central Pacific Ocean; CTD/Rosette; CTD-RO; Dissolved Organic Matter; Drake Passage; Equatorial Pacific; Fourier-transform ion cyclotron mass spectrometry; Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS, 15 T Bruker Solarix); Global Ocean; HOT_SPE; Lazarev Sea; Mass of molecular formulas; molecular composition; Molecular formula; MUC; MultiCorer; North Atlantic Ocean; North Pacific Ocean; Peak intensity; Polarstern; Pori Bac NewZ; PS79; PS79/035-3; PS79/036-1; PS79/037-1; PS79/038-2; PS79/039-3; PS79/040-2; PS79/041-3; PS79/042-2; PS79/043-2; PS79/044-1; PS79/045-1; PS79/046-3; PS79/048-1; PS79/049-2; PS79/052-2; PS79/053-3; PS79/054-3; PS79/178-1; PS79/179-1; PS79/193-2; PS79/205-1; PS79/217-1; PS79/232-1; PS79/235-3; PS79/241-3; PS79/244-2; PS79/247-1; PS79/251-1; PS79/262-3; PS79/267-1; PS79/277-2; PS79/281-1; PS79/287-2; PS79/296-3; PS79/297-3; PS79/298-3; PS79/300-4; PS79/301-3; PS79/302-4; PS79/304-2; PS79/306-2; PS79/307-4; PS79/308-2; PS79/310-4; PS79/311-2; PS79/312-4; PS79/313-4; PS79/314-4; PS79/315-4; PS79/317-4; PS79/318-4; PS79/319-4; PS79/320-3; PS79/321-4; PS79/322-4; PS79/323-2; PS79/324-4; PS79/328-3; PS79/329-4; Scotia Sea; SO245; SO245_10-1; SO245_1-1; SO245_11-1; SO245_12-2; SO245_13-1; SO245_14-2; SO245_15-2; SO245_2-2; SO245_3-1; SO245_4-1; SO245_5-1; SO245_6-1; SO245_7-4; SO245_8-1; SO245_9-1; SO248; SO248_10-2a; SO248_10-2b; SO248_1-1; SO248_11-1; SO248_12-1; SO248_12-3; SO248_13-3; SO248_14-3; SO248_14-7; SO248_15-1; SO248_16-10; SO248_16-13; SO248_16-15; SO248_16-2; SO248_16-3; SO248_16-5; SO248_17-4; SO248_18-3; SO248_18-5; SO248_19-1; SO248_19-2; SO248_2-1; SO248_2-4; SO248_3-1; SO248_4-1; SO248_4-3; SO248_5-1; SO248_6-1; SO248_6-10; SO248_6-11; SO248_6-13; SO248_6-2; SO248_6-4; SO248_6-5; SO248_7-1; SO248_7-4; SO248_8-2; SO248_8-4; SO248_9-3; SO254; SO254_23-1; SO254_32-1; SO254_38-1; SO254_45-1; SO254_47-1; SO254_59-1; SO254_65-1; Sonne_2; South Atlantic Ocean; South Pacific Ocean; UltraPac, GEOTRACES; Weddell Sea  (1)
  • Agilent PPL columns; Alanine; Amino acid, total hydrolysable dissolved; Ammonium; Arginine; Aspartic acid; Bacteria; beta-Alanine; Calculated as weighted average; Carbon, organic, dissolved; Comment; Extract; Flow cytometry; Fluorescence; Fluorometer, Turner Design, TD-700; Glutamic acid; Glycine; High Performance Liquid Chromatography (HPLC); Histidine; HTCO, Shimadzu TOC-V; Hydrogen/Carbon ratio; Isoleucine; LATITUDE; Leucine; LONGITUDE; Mass-to-charge ratio; Nitrate; Nitrite; Nitrogen, total dissolved; Oxygen/Carbon ratio; Phenylalanine; Phosphate; Photometry; Sample ID; Serine; Threonine; Time in days; Tyrosine; Valine  (1)
Document type
Keywords
Publisher
Years
  • 1
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    Unknown
    (Appendix 2) Environmental parameters of mesocosm experiments
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Agilent PPL columns; Alanine; Amino acid, total hydrolysable dissolved; Ammonium; Arginine; Aspartic acid; Bacteria; beta-Alanine; Calculated as weighted average; Carbon, organic, dissolved; Comment; Extract; Flow cytometry; Fluorescence; Fluorometer, Turner Design, TD-700; Glutamic acid; Glycine; High Performance Liquid Chromatography (HPLC); Histidine; HTCO, Shimadzu TOC-V; Hydrogen/Carbon ratio; Isoleucine; LATITUDE; Leucine; LONGITUDE; Mass-to-charge ratio; Nitrate; Nitrite; Nitrogen, total dissolved; Oxygen/Carbon ratio; Phenylalanine; Phosphate; Photometry; Sample ID; Serine; Threonine; Time in days; Tyrosine; Valine
    Type: Dataset
    Format: text/tab-separated-values, 2446 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Dissolved organic matter molecular composition data for multiple oceanographic cruises with RV SONNE (SO254, SO245, SO248) and RV POLARSTERN (PS79), Bermuda Atlantic Time-series Study and Hawaii Ocean Time-series (2023)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Description: This data includes the dissolved organic matter (DOM) molecular composition data obtained via Fourier-transform ion cyclotron resonance mass spectrometry for multiple oceanographic cruises collected in the Atlantic, Pacific and Southern oceans (HOTS, BATS, SO254, SO245, SO248, ANT 28-II, ANT 28-IV, and 28-V) between 2009 and 2017. This analysis was conducted to assess the molecular composition of DOM in the context of ocean mixing. DOM was extracted and desalted using the solid phase extraction method as described in Dittmar et al. 2008. The extracts were stored frozen in methanol until analysis in 2019, when aliquots of the extracts were mixed with 50% ultrapure water (50:50 v/v) and diluted to a final carbon concentration of 2.5 ppm. DOM composition was determined on a SolariX XR FT-ICR-MS (Bruker Daltonik GmbH, Bremen, Germany) equipped with a 15 Tesla superconducting magnet and an electrospray ionization source (ESI; Bruker Apollo II ion source) in negative ion mode, as described in (Bercovici, Dittmar, and Niggemann 2022). Subsequent data processing and molecular formula assignment was conducted in ICBM-OCEAN, as described in (Merder et al. 2020).
    Keywords: ANT-XXVIII/2; ANT-XXVIII/4; ANT-XXVIII/5; BacGeoPac; BAT_SPE; Bering Sea; Canarias Sea; Central Pacific Ocean; CTD/Rosette; CTD-RO; Dissolved Organic Matter; Drake Passage; Equatorial Pacific; Fourier-transform ion cyclotron mass spectrometry; Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS, 15 T Bruker Solarix); Global Ocean; HOT_SPE; Lazarev Sea; Mass of molecular formulas; molecular composition; Molecular formula; MUC; MultiCorer; North Atlantic Ocean; North Pacific Ocean; Peak intensity; Polarstern; Pori Bac NewZ; PS79; PS79/035-3; PS79/036-1; PS79/037-1; PS79/038-2; PS79/039-3; PS79/040-2; PS79/041-3; PS79/042-2; PS79/043-2; PS79/044-1; PS79/045-1; PS79/046-3; PS79/048-1; PS79/049-2; PS79/052-2; PS79/053-3; PS79/054-3; PS79/178-1; PS79/179-1; PS79/193-2; PS79/205-1; PS79/217-1; PS79/232-1; PS79/235-3; PS79/241-3; PS79/244-2; PS79/247-1; PS79/251-1; PS79/262-3; PS79/267-1; PS79/277-2; PS79/281-1; PS79/287-2; PS79/296-3; PS79/297-3; PS79/298-3; PS79/300-4; PS79/301-3; PS79/302-4; PS79/304-2; PS79/306-2; PS79/307-4; PS79/308-2; PS79/310-4; PS79/311-2; PS79/312-4; PS79/313-4; PS79/314-4; PS79/315-4; PS79/317-4; PS79/318-4; PS79/319-4; PS79/320-3; PS79/321-4; PS79/322-4; PS79/323-2; PS79/324-4; PS79/328-3; PS79/329-4; Scotia Sea; SO245; SO245_10-1; SO245_1-1; SO245_11-1; SO245_12-2; SO245_13-1; SO245_14-2; SO245_15-2; SO245_2-2; SO245_3-1; SO245_4-1; SO245_5-1; SO245_6-1; SO245_7-4; SO245_8-1; SO245_9-1; SO248; SO248_10-2a; SO248_10-2b; SO248_1-1; SO248_11-1; SO248_12-1; SO248_12-3; SO248_13-3; SO248_14-3; SO248_14-7; SO248_15-1; SO248_16-10; SO248_16-13; SO248_16-15; SO248_16-2; SO248_16-3; SO248_16-5; SO248_17-4; SO248_18-3; SO248_18-5; SO248_19-1; SO248_19-2; SO248_2-1; SO248_2-4; SO248_3-1; SO248_4-1; SO248_4-3; SO248_5-1; SO248_6-1; SO248_6-10; SO248_6-11; SO248_6-13; SO248_6-2; SO248_6-4; SO248_6-5; SO248_7-1; SO248_7-4; SO248_8-2; SO248_8-4; SO248_9-3; SO254; SO254_23-1; SO254_32-1; SO254_38-1; SO254_45-1; SO254_47-1; SO254_59-1; SO254_65-1; Sonne_2; South Atlantic Ocean; South Pacific Ocean; UltraPac, GEOTRACES; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 6762084 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Organic complexation of dissolved rare earth elements during an artificially induced phytoplankton spring bloom- a PHREEQC model approach (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: A PHREEQC model was written to investigate complexation of dREEs with components of the dissolved OM pool. Based on the data measured during a mesocosm experiment (maybe link the original dataset) the model simulated chemical speciation of the dREEs in the mesocosms. A new databank was created that includes stability constants for complexes of dREEs with the main inorganic ligands (Cl⁻, SO₄⁻, OH⁻, CO₃⁻) as well as with the strong organic ligand desferrioxamine B (DFOB) after Christenson and Schijf (2011). The model outcome includes concentrations of inorganic and organic dREE complexes as well as abundances as free ions (REE^3+) and total dREE concentrations. Additionally, we calculated the proportions of the different complexes to the total dREE pool. We used two different approaches for the PHREEQC simulations that followed Schijf et al. (2015; doi:10.1016/j.marchem.2015.06.010) and were characterized by the concentration of the strong organic ligand and the resulting proportion of organic complexes to the dREE pool. The 'High-DOC' approach results in a maximal proportion of organic REE-DOC complexes of 40%, the 'Low-DOC' approach results in maximum of 10% organic complexes. To keep an eye on variations in carbonate complexes, total alkalinity (TA) was monitored as well. TA was sampled daily, for the analysis we used a multiscan GO microplate spectrophotometer (Thermo Scientific) and followed the method described by Sarazin et al. (1999; doi:10.1016/S0043-1354(98)00168-7).
    Keywords: Binary Object; File content; mesocosm; North_Sea-Mesocosm; North Sea; PHREEQC; Planktotrons; Rare earth elements
    Type: Dataset
    Format: text/tab-separated-values, 4 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Unknown
    Fractionation patterns, normalized concentrations and standards of dissolved rare earth elements during an artificially induced phytoplankton spring bloom (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: To investigate the influence of organic matter (OM) on rare earth element (REE) distributions and patterns in the marine environment we monitored concentrations of dissolved REEs (dREEs) during an artificially induced spring bloom. Our mesocosm approach mimicked a neritic North Sea water body. Three biological replicates (P2-P4) were inoculated with a phytoplankton and associated bacterial community, which was retrieved in March 2018 from the southern North Sea. The incubation was monitored for 38 days. The experiment additionally covered the investigation of two biota-free controls. A variety of parameters were sampled, the results of some can be found in Mori et al. (2021; doi:10.1016/j.gca.2021.08.002). Samples for dREE analyses were taken at intervals of 1-5 days. Preconcentration, analysis and quantification of dREEs followed the method described in Behrens et al. (2016; doi:10.1016/j.marchem.2016.08.006.). Concentrations were normalized to the Post Archaen Australian Shale (Rudnick and Gao, 2003). We further normalized concentrations throughout the experiment to initial concentrations (T0-normalization) and calculated loss and gains of dREEs.
    Keywords: Binary Object; File content; mesocosm; North_Sea-Mesocosm; North Sea; PHREEQC; Planktotrons; Rare earth elements
    Type: Dataset
    Format: text/tab-separated-values, 6 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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