Dataset Information

A metabolomics dataset of plankton exometabolomes and dissolved organic compounds in the South Atlantic Ocean

ABSTRACT:

The marine microbiome contributes to nearly half of our planet’s net primary production. It plays a central role in the ocean’s carbon cycle through both passive and active release of metabolites into seawater, forming a pool of dissolved compounds known as the marine exometabolome.

Here, we introduce an untargeted metabolomics dataset of marine dissolved organic compounds collected aboard the scientific research vessel Tara during the AtlantECO Mission Microbiomes expedition (2021-2022). A total of 367 samples were collected from multiple depths across 107 sites in the South Atlantic Ocean, covering environments influenced by major river plumes (e.g., Amazon, Senegal), coastal upwelling systems, and the Weddell Sea. Metabolites were analyzed in positive ionization mode using ultra-high pressure liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS) and tandem MS. Available data includes both raw (i.e, chromatograms and mass spectra) and pre-processed formats (i.e, intensity tables and annotation files). This dataset provides a resource for the investigation of marine metabolic diversity and dynamics and supports comparative studies across marine environments.

INSTRUMENT(S): Liquid Chromatography MS - alternating - reverse phase, Liquid Chromatography MS - positive - reverse phase

PROVIDER: MTBLS14508 | MetaboLights | 2026-05-19

REPOSITORIES: MetaboLights

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Dataset's files

Source:

			Action	DRS
	a_MTBLS14508_LC-MS_alternating_reverse-phase_metabolite_profiling.txt	Txt
	a_MTBLS14508_LC-MS_positive_reverse-phase_metabolite_profiling.txt	Txt
	i_Investigation.txt	Txt
	m_MTBLS14508_LC-MS_alternating_reverse-phase_metabolite_profiling_v2_maf-truncated.tsv	Tabular
	m_MTBLS14508_LC-MS_positive_reverse-phase_metabolite_profiling_v2_maf-truncated.tsv	Tabular

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A metabolomics dataset of plankton exometabolomes and dissolved organic compounds in the South Atlantic Ocean

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