Microbial Eukaryote Plankton Trophic Diversity in Arctic Water Masses

High-throughput sequencing of the 18S rRNA gene characterizes microbial eukaryote assemblages across two size fractions and four vertically stacked water masses in the Arctic Ocean. The dataset, published by Aurélie Labarre under CC-BY-4.0, is 905.6 KB and was last updated in May 2026. It captures the distribution of phototrophic, mixotrophic, and heterotrophic lineages from Nares Strait into Baffin Bay.

Use Cases

• Classifying microbial eukaryote trophic strategies based on taxonomic assignments mentioned in the description.
• Analyzing community composition differences between water masses of distinct origin.
• Investigating the distribution of rare taxa and uncultivated groups in stratified Arctic waters.
• Testing hypotheses about environmental filtering and evolutionary history on plankton assemblages.

Strengths

• Data is derived from high-throughput sequencing of the 18S rRNA gene, a standard molecular method.
• Samples cover two distinct size fractions (0.22–3 and 3–50 μm) and four vertically stacked water masses.
• The dataset is openly shared under a CC-BY-4.0 license, facilitating reuse.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The approach was limited to DNA as a template, which may capture historic distributions from dead organisms.

Provenance

Source

figshare, author Aurélie Labarre.

Collection Method

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

Freshness

Last updated 2026-05-08 05:56:47; freshness should be verified.

Geography

Arctic Ocean, specifically from Nares Strait into Baffin Bay.