Stable isotopes and mol% of amino acids in seston at surface during ENDEAVOR cruise EN614
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| Format: | Dataset Open Access |
| Language: | en |
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2026
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| _version_ | 1867169162469572608 |
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| author | Fernández-Carrera, Ana Wodarg, Dirk Montoya, Joseph P Loick-Wilde, Natalie |
| author_facet | Fernández-Carrera, Ana Wodarg, Dirk Montoya, Joseph P Loick-Wilde, Natalie |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The Amazon river accounts annually for 20% of riverine discharge into the global ocean with strong seasonal variations. This lens of freshwater spreads at surface as a plume, and can reach as far as the Caribbean. During this journey, the changing physicochemical characteristics of the aging plume define contrasting plankton habitats. These habitats select for communities with varying degrees of complexity of the plankton food web. During ENDEAVOR cruise EN614 (https://demo.bco-dmo.org/dataset/757784) we studied the dominant trophic function at the base of the food web (autotrophs vs mixotrophs) using stable isotopes of nitrogen in specific amino acids as well as bulk isotopes of carbon and nitrogen. This dataset contains the nitrogen signatures of 12 amino acids in δ notation (δ15N, ‰ vs N2 in air), the mol% of 13 amino acids and the carbon (δ13C, ‰ vs VPDB) and nitrogen isotopes in bulk samples at surface as well as environmental data and phytoplankton community structure. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971946 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Stable isotopes and mol% of amino acids in seston at surface during ENDEAVOR cruise EN614 Fernández-Carrera, Ana Wodarg, Dirk Montoya, Joseph P Loick-Wilde, Natalie Alanine; Alanine, δ15N; Alanine, δ15N, standard deviation; Amazon River plume; amino acids mol%; Aspartamine and Aspartic acid; Aspartamine and Aspartic acid, δ15N; Aspartamine and Aspartic acid, δ15N, standard deviation; Based on HPLC pigments according to Bricaud et al (2004); Brunt-Väisälä frequency, maximum; Campaign; Carbon, particulate; ChemTax v 1.9.5 (Wright, S., 2017); Chlorophyll a; Compound-specific stable isotope analyses of amino acids; Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500; Cryptophytes; CTD/Rosette; CTD-RO; DATE/TIME; Depth, deep chlorophyll maximum; Depth, phosphocline; Depth, silicocline; DEPTH, water; Depth of nitracline; Diatoms; Dinoflagellates; EN614; EN614_10-04; EN614_12-01; EN614_17-01; EN614_22-04; EN614_24-03; EN614_25-03; EN614_27-03; EN614_3-09; EN614_31-11; EN614_33-02; EN614_6-04; EN614_8-02; Endeavor; Event label; Filamentous Cyanobacteria; Gas chromatographer mass spectrometer, Thermo Finnigan, Trace GCMS DSQ II; coupled with TriPlus Autosampler, Thermo Finnigan; Glutamine and Glutamic acid; Glutamine and Glutamic acid, δ15N; Glutamine and Glutamic acid, δ15N, standard deviation; Glycine; Habitat; Habitat Delineation in Highly Variable Marine Environments (Weber et. al, 2019); Haptophytes; High performance liquid chromatography (HPLC), Agilent 1200; High-pressure liquid chromatography size index; Isoleucine; Isoleucine, δ15N; Isoleucine, δ15N, standard deviation; Isotope ration mass spectrometer (IRMS), Thermo Fischer Scientific, MAT253; universal continuous flow interface, Thermo Scientific, ConFlo IV; gas chromatography, Thermo Scientific, GC Isolink II; gas chromatography, Thermo Scientific, Trace GC 1300; LATITUDE; Leucine; Leucine, δ15N; Leucine, δ15N, standard deviation; Linear interpolation depth of 35 PSU; Linear interpolation in nutrient depth profile; Location; LONGITUDE; Lysine; Lysine, δ15N; Lysine, δ15N, standard deviation; Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999); Mixed layer depth; Nitrate; Nitrite; Nitrogen, particulate; Oxygen; Phenylalanine; Phenylalanine, δ15N; Phenylalanine, δ15N, standard deviation; Phosphate; Prasinophytes; Prochlorococcus; Proline; Proline, δ15N; Proline, δ15N, standard deviation; River plume thickness; Salinity; Serine; Serine, δ15N; Serine, δ15N, standard deviation; seston; Silicate; Stable carbon isotopes δ13C; stable nitrogen isotope (δ15N); Station label; Synechococcus; Temperature, water; Threonine; Threonine, δ15N; Threonine, δ15N, standard deviation; Tyrosine; Tyrosine, δ15N; Tyrosine, δ15N standard, deviation; Valine; Valine, δ15N; Valine, δ15N, standard deviation; western tropical Atlantic; δ13C, seston; δ15N, seston The Amazon river accounts annually for 20% of riverine discharge into the global ocean with strong seasonal variations. This lens of freshwater spreads at surface as a plume, and can reach as far as the Caribbean. During this journey, the changing physicochemical characteristics of the aging plume define contrasting plankton habitats. These habitats select for communities with varying degrees of complexity of the plankton food web. During ENDEAVOR cruise EN614 (https://demo.bco-dmo.org/dataset/757784) we studied the dominant trophic function at the base of the food web (autotrophs vs mixotrophs) using stable isotopes of nitrogen in specific amino acids as well as bulk isotopes of carbon and nitrogen. This dataset contains the nitrogen signatures of 12 amino acids in δ notation (δ15N, ‰ vs N2 in air), the mol% of 13 amino acids and the carbon (δ13C, ‰ vs VPDB) and nitrogen isotopes in bulk samples at surface as well as environmental data and phytoplankton community structure. |
| title | Stable isotopes and mol% of amino acids in seston at surface during ENDEAVOR cruise EN614 |
| topic | Alanine; Alanine, δ15N; Alanine, δ15N, standard deviation; Amazon River plume; amino acids mol%; Aspartamine and Aspartic acid; Aspartamine and Aspartic acid, δ15N; Aspartamine and Aspartic acid, δ15N, standard deviation; Based on HPLC pigments according to Bricaud et al (2004); Brunt-Väisälä frequency, maximum; Campaign; Carbon, particulate; ChemTax v 1.9.5 (Wright, S., 2017); Chlorophyll a; Compound-specific stable isotope analyses of amino acids; Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500; Cryptophytes; CTD/Rosette; CTD-RO; DATE/TIME; Depth, deep chlorophyll maximum; Depth, phosphocline; Depth, silicocline; DEPTH, water; Depth of nitracline; Diatoms; Dinoflagellates; EN614; EN614_10-04; EN614_12-01; EN614_17-01; EN614_22-04; EN614_24-03; EN614_25-03; EN614_27-03; EN614_3-09; EN614_31-11; EN614_33-02; EN614_6-04; EN614_8-02; Endeavor; Event label; Filamentous Cyanobacteria; Gas chromatographer mass spectrometer, Thermo Finnigan, Trace GCMS DSQ II; coupled with TriPlus Autosampler, Thermo Finnigan; Glutamine and Glutamic acid; Glutamine and Glutamic acid, δ15N; Glutamine and Glutamic acid, δ15N, standard deviation; Glycine; Habitat; Habitat Delineation in Highly Variable Marine Environments (Weber et. al, 2019); Haptophytes; High performance liquid chromatography (HPLC), Agilent 1200; High-pressure liquid chromatography size index; Isoleucine; Isoleucine, δ15N; Isoleucine, δ15N, standard deviation; Isotope ration mass spectrometer (IRMS), Thermo Fischer Scientific, MAT253; universal continuous flow interface, Thermo Scientific, ConFlo IV; gas chromatography, Thermo Scientific, GC Isolink II; gas chromatography, Thermo Scientific, Trace GC 1300; LATITUDE; Leucine; Leucine, δ15N; Leucine, δ15N, standard deviation; Linear interpolation depth of 35 PSU; Linear interpolation in nutrient depth profile; Location; LONGITUDE; Lysine; Lysine, δ15N; Lysine, δ15N, standard deviation; Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999); Mixed layer depth; Nitrate; Nitrite; Nitrogen, particulate; Oxygen; Phenylalanine; Phenylalanine, δ15N; Phenylalanine, δ15N, standard deviation; Phosphate; Prasinophytes; Prochlorococcus; Proline; Proline, δ15N; Proline, δ15N, standard deviation; River plume thickness; Salinity; Serine; Serine, δ15N; Serine, δ15N, standard deviation; seston; Silicate; Stable carbon isotopes δ13C; stable nitrogen isotope (δ15N); Station label; Synechococcus; Temperature, water; Threonine; Threonine, δ15N; Threonine, δ15N, standard deviation; Tyrosine; Tyrosine, δ15N; Tyrosine, δ15N standard, deviation; Valine; Valine, δ15N; Valine, δ15N, standard deviation; western tropical Atlantic; δ13C, seston; δ15N, seston |
| url | https://doi.org/10.1594/PANGAEA.971946 |