Description: This large set of sediment trap samples was collected in different oceanic areas between 1993 and 2017 from shelf seas to the deep ocean. The samples were compiled from previous studies and used for statistical analyses in order to better understand particle dynamics and organic matter cycling in the ocean and to test and refine amino acid (AA) and hexosamine (HA) based biogeochemical indicators. Samples were analysed for total nitrogen (N) using a Carlo Erba nitrogen analyser 1500. Total organic carbon (TOC) was measured with the same instrument after treatment of weighed samples with 1N HCl to remove carbonate. Stable nitrogen isotopes of total particulate nitrogen (δ15N-TPN) were analysed with the mass spectrometer ThermoFisher Scientific MAT 252. AA and HA contents and their individual monomers were analysed by liquid chromatography using a Biochrom 30 amino acid analyzer. Total fluxes, TOC and AA fluxes were calculated in mg m-2 d-1. Contents of AA and HA are presented in µmol/g and µg/g. AAC, AAN, HAC, HAN are presented in µg/g and as percentages of TOC (AA-C/C, HA-C/C) or TN (AA-N/N, HA-N/N). AA and HA monomers are presented in Mol% and comprise aspartic acid (ASP), glutamic acid (Glu), threonine (Thr), serine (Ser), glycine (Gly), alanine (Ala), valine (Val), methionine (Met), isoleucine (Ile), leucine (Leu), tyrosine (Tyr), phenylalanine (Phe), β-Alanine (β-Ala), γ-aminobutyric acid (γ-Aba), histidine (His), ornithine (Orn), lysine (Lys) and arginine (Arg), glucosamine (GlcN) and galactosamine (GalN), cysteic acid (CYA), taurine (TAU), methionine sulfoximine (MSO) and tryptophane (TRP) were determined only in the more recent samples. Data gaps indicate that measurements were not carried out or that they were not stored in the older data sets. The RI was calculated according to Jennerjahn and Ittekkot (1997; https://archimer.ifremer.fr/doc/00093/20403/) and the DI after Dauwe et al. (1999; doi:10.4319/lo.1999.44.7.1809). Definitions of biogeochemical indicators SDI, RTI, ox/anox and a detailed description of the methods can be found in Gaye et al. (2022; doi:org/10.5194/bg-19-807-2022).
Global identifier:
Doi(
"10.1594/PANGAEA.940828",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Alanine",
"Amino acid nitrogen of total nitrogen",
"Amino acid, carbon",
"Amino acid, carbon of total organic carbon",
"Amino acid, flux",
"Amino acid, nitrogen",
"Amino acids",
"Amino acids non-protein",
"Amino acids/hexosamines ratio",
"Amino sugar, carbon",
"Amino sugar, carbon of total organic carbon",
"Amino sugar, nitrogen",
"Amino sugar, nitrogen of total nitrogen",
"Arginine",
"Aspartic acid",
"Aspartic acid/beta-Alanine ratio",
"Carbon, organic, total",
"Carbon, organic, total, flux",
"Cysteic acid",
"DATE/TIME",
"DEPTH, water",
"Degradation index",
"Event label",
"Galactosamine",
"Glucosamine",
"Glucosamine/Galactosamine ratio",
"Glutamic acid",
"Glutamic acid/gamma-Aminobutyric acid ratio",
"Glycine",
"Hexosamines",
"Histidine",
"Isoleucine",
"Leucine",
"Location",
"Lysine",
"Methionine",
"Methionine sulfoximine",
"Nitrogen, total",
"Ornithine",
"Other event",
"Ox/Anox ratio",
"Phenylalanine",
"Reactivity index of amino acids (Jennerjahn & Ittekkot, 1997)",
"Reference of data",
"Reference/source",
"Residence time index",
"Sample ID",
"Sediment degradation index",
"Serine",
"Station label",
"Taurine",
"Threonine",
"Total mass, flux per day",
"Tryptophan",
"Tyrosine",
"Valine",
"beta-Alanine",
"gamma-Aminobutyric acid",
"δ15N",
],
methods: [
"Amino acid analyser, Biochrom 30",
"Calculated after Dauwe et al. 1999",
"Calculated after Gaye et al. (2022)",
"Calculated after Jennerjahn and Ittekkot (1997)",
"Gas chromatography with Carlo Erba NA-1500 CNS elemental analyzer",
"Gas chromatography with Carlo Erba NA1500 after treatment with HCL",
"Mass spectrometer, ThermoFisher Scientific MAT 252",
],
},
)
Tags: Tierhaltungsanlage ? Gesamter organischer Kohlenstoff ? Stickstoff ? Gesamtkohlenstoff ? Gesamtstickstoff ? Tiefsee ? Messdaten ? Stichprobe ? Studie ? Wasserprobe ? Sediment ? Meeresgewässer ? amino acids ? degradation indicators ? hexosamines ? organic matter degradability ? sediment trap samples ? sinking particles ?
Region: Steinhorster Basin off south Java South Atlantic Ocean North Atlantic Ocean Kara Sea Indian Ocean Arabian Sea
Bounding boxes: -19.67° .. 108.0333° x -23° .. 76.2°
License: Creative Commons Namensnennung 4.0
Language: Englisch/English
Issued: 2022-02-09
Modified: 2024-04-22
Time ranges: 1992-12-25 - 2017-07-04
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