Amino acids and hexosamines in suspended matter samples collected in different oceanic areas between 1999 and 2017 from shelf seas to the deep ocean

This large set of suspended matter (SPM) samples was collected in different oceanic areas between 1999 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) and total carbon (C) 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 Thermo Finnigan MAT 252. AA and HA contents and their individual monomers were analysed by liquid chromatography using a Biochrom 30 amino acid analyzer. Contents of AA and HA are presented in nmol/g and µg/g. AAC, AAN, HAC, HAN are presented in µg/g and as percentages of TOC (AAC/C, HAC/C) or TN (AAN/N, HAN/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 (Gluam) and galactosamine (Galam). 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).

Data and Resources

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Cite this as

Gaye, Birgit, Lahajnar, Niko, Harms, Natalie, Paul, Sophie Anna Luise, Rixen, Tim, Emeis, Kay-Christian (2022). Dataset: Amino acids and hexosamines in suspended matter samples collected in different oceanic areas between 1999 and 2017 from shelf seas to the deep ocean. https://doi.org/10.1594/PANGAEA.940723

DOI retrieved: 2022

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-4.0
Source https://doi.org/10.1594/PANGAEA.940723
Author Gaye, Birgit
Given Name Birgit
Family Name Gaye
More Authors
Lahajnar, Niko
Harms, Natalie
Paul, Sophie Anna Luise
Rixen, Tim
Emeis, Kay-Christian
Source Creation 2022
Publication Year 2022
Resource Type text/tab-separated-values - filename: AH-HH-SPM_Gaye_etal-2022
Subject Areas
Name: Chemistry

Name: Ecology

Name: Lithosphere

Related Identifiers
Title: What can we learn from amino acids about oceanic organic matter cycling and degradation?
Identifier: https://doi.org/10.5194/bg-19-807-2022
Type: DOI
Relation: References
Year: 2022
Source: Biogeosciences
Authors: Gaye Birgit , Lahajnar Niko , Harms Natalie , Paul Sophie Anna Luise , Rixen Tim , Emeis Kay-Christian .