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  • SOPRAN; Surface Ocean Processes in the Anthropocene  (3)
  • 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Alanine; Alkaline phosphatase, Km value; Alkaline phosphatase, Km value, standard deviation; Alkaline phosphatase, maximum hydrolysis velocity; Alkaline phosphatase, maximum hydrolysis velocity, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Alloxanthin; Aluminium, dissolved; Amino acid, hydrolysable as carbon; Amino acid, hydrolysable as nitrogen; Amino acids; Ammonium; Annelida; Antheraxanthin; Appendicularia; Arabinose; Arabinose, standard deviation; Aragonite saturation state; Aragonite saturation state, standard error; Arginine; Aspartic acid and Asparagine; Bacterial biomass production of carbon, standard deviation; Bacterial production; Bacteriochlorophyll a; Bicarbonate, standard error; Bicarbonate ion; Calcite saturation state; Calcite saturation state, standard error; Calcium carbonate; Calculated using seacarb; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbohydrates, total hydrolyzable; Carbohydrates, total hydrolyzable, standard error; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbon, organic, dissolved; Carbon, organic, flux; Carbon, organic, particulate; Carbonate ion; Carbonate ion, standard error; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard error; Carotene; Chaetognatha; Chlorophyll a; Chlorophyll a, total; Chlorophyll b; Chlorophyll c1+c2; Chlorophyll c3; Ciliates; Ciliates, heterotrophic; Ciliates, mixotrophic; Cnidaria; Coefficient of variation; Copepoda; Crustacea; Date; Diadinoxanthin; Diatoms; Diatoxanthin; Dinoflagellates; Divinyl chlorophyll a; Event label; EXP; Experiment; Extracellular release; Extracellular release, standard deviation; FAST; Flagellates, autotrophic; Fluorescence, chlorophyll; Fluorescence, chlorophyll, standard deviation; Fluorescence, dissolved organic matter; Fluorescence, dissolved organic matter, standard deviation; Fucose; Fucose, standard deviation; Fucoxanthin; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Galactosamine; Galactosamine, standard deviation; Galactose; Galactose, standard deviation; Galacturonic acid; Galacturonic acid, standard deviation; gamma-Aminobutyric acid; Gluconic acid; Gluconic acid, standard deviation; Glucosamine; Glucosamine, standard deviation; Glucose; Glucose, standard deviation; Glucuronic acid; Glucuronic acid, standard deviation; Glutamic acid; Glycine; Harosa; Identification; Incubation duration; ION; Iron, dissolved; Isoleucine; Leucine; Lithogenic material; Local Time; Lutein; Mannose/Xylose; Mannose/Xylose, standard deviation; Michealis-Menten constant of protease; Michealis-Menten constant of protease, standard deviatione; Mollusca; Muramic acid; Muramic acid, standard deviation; Nanoeukaryotes; Nanoflagellates, heterotrophic; Neoxanthin; Net community production, cumulated; Net community production of oxygen; Net community production of oxygen, standard error; Nitrate; Nitrate and Nitrite; Nitrite; Nitrogen fixation rate; Opal particles; Organic matter; Organic matter, flux; Oxygen; Oxygen, standard deviation; 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; Peridinin; pH; pH, standard deviation; Phaeophorbide a; Phaeophytin a; Phenylalanine; Phosphate; Phosphorus, reactive soluble; Photosynthetic production of dissolved organic matter; Photosynthetic production of dissolved organic matter, standard deviation; Photosynthetic production of particulate organic matter; Photosynthetic production of particulate organic matter, standard deviation; Photosynthetic production of total organic matter; Photosynthetic production of total organic matter, standard deviation; Picoeukaryotes; Potentiometric; Potentiometric titration; Prasinoxanthin; Primary production of carbon; Prokaryotes, heterotroph; Protease, maximum hydrolysis velocity; Protease, maximum hydrolysis velocity, standard deviation; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Rhamnose; Rhamnose, standard deviation; Salinity; Serine; Silicate; Suspended particulate matter; Synechococcus; Temperature, water; Threonine; Time point, descriptive; Total sediment, flux; Transparent exopolymer particles; Transparent exopolymer particles per carbon biomass; Treatment; Type; TYR; Tyrosine; Valine; Violaxanthin; Volume; Zeaxanthin; δ13C, dissolved inorganic carbon; δ13C, dissolved organic carbon; δ13C, particulate organic carbon  (1)
Document type
Keywords
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Years
  • 1
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    Effect of wind speed on the size distribution of gel particles in the sea surface microlayer: Insights from a wind wave channel experiment (2018)
    PANGAEA
    In:  Supplement to: Sun, Cui-Ci; Sperling, Martin; Engel, Anja (2018): Effect of wind speed on the size distribution of gel particles in the sea surface microlayer: insights from a wind–wave channel experiment. Biogeosciences, 15(11), 3577-3589, https://doi.org/10.5194/bg-15-3577-2018
    Details
    Publication Date: 2024-02-01
    Description: Gel particles, such as transparent exopolymer particles (TEP) and Coomassie stainable particles (CSP), are important organic components in the sea surface microlayer (SML). Here, we present results on the effect of different wind speeds on the accumulation and size distribution of TEP and CSP during a wind wave channel experiment in the Aeolotron. Total areas of TEP (TEPSML) and CSP (CSPSML) in the surface microlayer were exponentially related to wind speed. At wind speeds 〈 6 m s−1, accumulation of TEPSML and CSPSML occurred, decreasing at wind speeds of 〉 8 m s−1. Wind speeds 〉 8 m s−1 also significantly altered the size distribution of TEPSML in the 2–16 µm size range towards smaller sizes. The response of the CSPSML size distribution to wind speed varied through time depending on the biogenic source of gels. Wind speeds 〉 8 m s−1 decreased the slope of CSPSML size distribution significantly in the absence of autotrophic growth. For the slopes of TEP and CSP size distribution in the bulk water, no significant difference was observed between high and low wind speeds. Changes in spectral slopes between high and low wind speed were higher for TEPSML than for CSPSML, indicating that the impact of wind speed on size distribution of gel particles in the SML may be more pronounced for TEP than for CSP, and that CSPSML are less prone to aggregation during the low wind speeds. Addition of an E. huxleyi culture resulted in a higher contribution of submicron gels (0.4–1 µm) in the SML at higher wind speed (〉 6 m s−1), indicating that phytoplankton growth may potentially support the emission of submicron gels with sea spray aerosol.
    Keywords: SOPRAN; Surface Ocean Processes in the Anthropocene
    Type: Dataset
    Format: application/zip, 8 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Biogenic halocarbons from the Peruvian upwelling region during METEOR cruise M91 (2016)
    PANGAEA
    In:  Supplement to: Hepach, Helmke; Quack, Birgit; Tegtmeier, Susann; Engel, Anja; Bracher, Astrid; Fuhlbrügge, Steffen; Galgani, Luisa; Atlas, Elliot L; Lampel, Johannes; Frieß, Udo; Krüger, Kirstin (2016): Biogenic halocarbons from the Peruvian upwelling region as tropospheric halogen source. Atmospheric Chemistry and Physics, 16(18), 12219-12237, https://doi.org/10.5194/acp-16-12219-2016
    Details
    Publication Date: 2024-02-01
    Description: Halocarbons, halogenated short-chained hydrocarbons, are produced naturally in the oceans by biological and chemical processes. They are emitted from surface seawater into the atmosphere, where they take part in numerous chemical processes such as ozone destruction and the oxidation of mercury and dimethyl sulfide. Here we present oceanic and atmospheric halocarbon data for the Peruvian upwelling obtained during the M91 cruise onboard the research vessel Meteor in December 2012. Surface waters during the cruise were characterized by moderate concentrations of bromoform (CHBr3) and dibromomethane (CH2Br2) correlating with diatom biomass derived from marker pigment concentrations, which suggests this phytoplankton group as likely source. Concentrations measured for the iodinated compounds methyl iodide (CH3I) of up to 35.4 pmol L-1, chloroiodomethane (CH2ClI) of up to 58.1 pmol L-1 and diiodomethane (CH2I2) of up to 32.4 pmol L-1 in water samples were much higher than previously reported for the tropical Atlantic upwelling systems. Iodocarbons also correlated with the diatom biomass and even more significantly with dissolved organic matter (DOM) components measured in the surface water. Our results suggest a biological source of these compounds as significant driving factor for the observed large iodocarbon concentrations. Elevated atmospheric mixing ratios of CH3I (up to 3.2 ppt), CH2ClI (up to 2.5 ppt) and CH2I2 (3.3 ppt) above the upwelling were correlated with seawater concentrations and high sea-to-air fluxes. The enhanced iodocarbon production in the Peruvian upwelling contributed significantly to tropospheric iodine levels.
    Keywords: SOPRAN; Surface Ocean Processes in the Anthropocene
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    The organic sea-surface microlayer in the upwelling region off the coast of Peru and potential implications for air–sea exchange processes (2016)
    PANGAEA
    In:  Supplement to: Engel, Anja; Galgani, Luisa (2016): The organic sea-surface microlayer in the upwelling region off the coast of Peru and potential implications for air–sea exchange processes. Biogeosciences, 13(4), 989-1007, https://doi.org/10.5194/bg-13-989-2016
    Details
    Publication Date: 2024-02-01
    Description: The sea-surface microlayer (SML) is at the upper- most surface of the ocean, linking the hydrosphere with the atmosphere. The presence and enrichment of organic compounds in the SML have been suggested to influence air– sea gas exchange processes as well as the emission of primary organic aerosols. Here, we report on organic matter components collected from an approximately 50µm thick SML and from the underlying water (ULW), ca. 20 cm below the SML, in December 2012 during the SOPRAN METEOR 91 cruise to the highly productive, coastal upwelling regime off the coast of Peru. Samples were collected at 37 stations including coastal upwelling sites and off-shore stations with less organic matter and were analyzed for total and dissolved high molecular weight (〉 1 kDa) combined carbohydrates (TCCHO, DCCHO), free amino acids (FAA), total and dissolved hydrolyzable amino acids (THAA, DHAA), transparent exopolymer particles (TEP), Coomassie stainable particles (CSPs), total and dissolved organic carbon (TOC, DOC), total and dissolved nitrogen (TN, TDN), as well as bacterial and phytoplankton abundance. Our results showed a close coupling between organic matter concentrations in the water column and in the SML for almost all components except for FAA and DHAA that showed highest enrichment in the SML on average. Accumulation of gel particles (i.e., TEP and CSP) in the SML differed spatially. While CSP abundance in the SML was not related to wind speed, TEP abundance decreased with wind speed, leading to a depletion of TEP in the SML at about 5 m s-1 . Our study provides insight to the physical and biological control of organic matter enrichment in the SML, and discusses the potential role of organic matter in the SML for air–sea exchange processes.
    Keywords: SOPRAN; Surface Ocean Processes in the Anthropocene
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Peacetime minicosm discrete sampling data (2021)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Keywords: 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Alanine; Alkaline phosphatase, Km value; Alkaline phosphatase, Km value, standard deviation; Alkaline phosphatase, maximum hydrolysis velocity; Alkaline phosphatase, maximum hydrolysis velocity, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Alloxanthin; Aluminium, dissolved; Amino acid, hydrolysable as carbon; Amino acid, hydrolysable as nitrogen; Amino acids; Ammonium; Annelida; Antheraxanthin; Appendicularia; Arabinose; Arabinose, standard deviation; Aragonite saturation state; Aragonite saturation state, standard error; Arginine; Aspartic acid and Asparagine; Bacterial biomass production of carbon, standard deviation; Bacterial production; Bacteriochlorophyll a; Bicarbonate, standard error; Bicarbonate ion; Calcite saturation state; Calcite saturation state, standard error; Calcium carbonate; Calculated using seacarb; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbohydrates, total hydrolyzable; Carbohydrates, total hydrolyzable, standard error; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbon, organic, dissolved; Carbon, organic, flux; Carbon, organic, particulate; Carbonate ion; Carbonate ion, standard error; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard error; Carotene; Chaetognatha; Chlorophyll a; Chlorophyll a, total; Chlorophyll b; Chlorophyll c1+c2; Chlorophyll c3; Ciliates; Ciliates, heterotrophic; Ciliates, mixotrophic; Cnidaria; Coefficient of variation; Copepoda; Crustacea; Date; Diadinoxanthin; Diatoms; Diatoxanthin; Dinoflagellates; Divinyl chlorophyll a; Event label; EXP; Experiment; Extracellular release; Extracellular release, standard deviation; FAST; Flagellates, autotrophic; Fluorescence, chlorophyll; Fluorescence, chlorophyll, standard deviation; Fluorescence, dissolved organic matter; Fluorescence, dissolved organic matter, standard deviation; Fucose; Fucose, standard deviation; Fucoxanthin; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Galactosamine; Galactosamine, standard deviation; Galactose; Galactose, standard deviation; Galacturonic acid; Galacturonic acid, standard deviation; gamma-Aminobutyric acid; Gluconic acid; Gluconic acid, standard deviation; Glucosamine; Glucosamine, standard deviation; Glucose; Glucose, standard deviation; Glucuronic acid; Glucuronic acid, standard deviation; Glutamic acid; Glycine; Harosa; Identification; Incubation duration; ION; Iron, dissolved; Isoleucine; Leucine; Lithogenic material; Local Time; Lutein; Mannose/Xylose; Mannose/Xylose, standard deviation; Michealis-Menten constant of protease; Michealis-Menten constant of protease, standard deviatione; Mollusca; Muramic acid; Muramic acid, standard deviation; Nanoeukaryotes; Nanoflagellates, heterotrophic; Neoxanthin; Net community production, cumulated; Net community production of oxygen; Net community production of oxygen, standard error; Nitrate; Nitrate and Nitrite; Nitrite; Nitrogen fixation rate; Opal particles; Organic matter; Organic matter, flux; Oxygen; Oxygen, standard deviation; 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; Peridinin; pH; pH, standard deviation; Phaeophorbide a; Phaeophytin a; Phenylalanine; Phosphate; Phosphorus, reactive soluble; Photosynthetic production of dissolved organic matter; Photosynthetic production of dissolved organic matter, standard deviation; Photosynthetic production of particulate organic matter; Photosynthetic production of particulate organic matter, standard deviation; Photosynthetic production of total organic matter; Photosynthetic production of total organic matter, standard deviation; Picoeukaryotes; Potentiometric; Potentiometric titration; Prasinoxanthin; Primary production of carbon; Prokaryotes, heterotroph; Protease, maximum hydrolysis velocity; Protease, maximum hydrolysis velocity, standard deviation; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Rhamnose; Rhamnose, standard deviation; Salinity; Serine; Silicate; Suspended particulate matter; Synechococcus; Temperature, water; Threonine; Time point, descriptive; Total sediment, flux; Transparent exopolymer particles; Transparent exopolymer particles per carbon biomass; Treatment; Type; TYR; Tyrosine; Valine; Violaxanthin; Volume; Zeaxanthin; δ13C, dissolved inorganic carbon; δ13C, dissolved organic carbon; δ13C, particulate organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 17025 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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