Arctic Marine Eukaryotic Plankton Trophic Diversity Across Water Masses

Microbial eukaryote assemblages from Nares Strait into Baffin Bay, characterized using high-throughput sequencing of the 18S rRNA gene across two size fractions. The dataset was created by Aurélie Labarre and last updated on 2026-05-08. It captures community data from four vertically stacked Arctic water masses during summer.

Use Cases

• Classifying microbial eukaryotic trophic strategies (mixotrophic, phototrophic, heterotrophic) based on taxonomic assignments mentioned in the description.
• Analyzing community composition differences between distinct Arctic water masses (e.g., surface vs. deep) based on the sampling strategy.
• Investigating the distribution of rare taxa and uncultivated groups across environmental gradients as described in the results.
• Studying the potential reservoir of parasitic Syndinales in deep Atlantic waters as suggested by the discussion.

Strengths

• Data is derived from high-throughput sequencing of the 18S rRNA gene, a standard method for microbial eukaryote characterization.
• Samples are stratified across two size fractions (0.22–3 and 3–50 μm) and four distinct Arctic water masses, allowing for comparative analysis.
• The dataset is openly shared under a CC-BY-4.0 license, permitting reuse with attribution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• The 18.5 KB file size suggests the dataset has a very limited scope, likely containing summary or taxonomic tables rather than raw sequence data.

Provenance

Source

figshare, author Aurélie Labarre.

Collection Method

High-throughput sequencing of the V4 region of the 18S rRNA gene from water samples.

Time Range

Sampling occurred during summer (specific years not provided).

Freshness

Last updated 2026-05-08 05:56:46; freshness should be verified.

Geography

Arctic Ocean, specifically from Nares Strait into Baffin Bay.