ArticleScientific reports2019
Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Differential responses of size-fractionated eukaryotic microalgae to ocean alkalinity enhancement in oligotrophic seawaters.Applied and environmental microbiology · 2026Article
- Genetic variability in microbial eukaryotes reshapes marine biodiversity assessment in the age of amplicon sequencing.PloS one · 2025Article
- Marine snow morphology illuminates the evolution of phytoplankton blooms and determines their subsequent vertical export.Nature communications · 2021Article
- Heterotrophic Nitrogen Fixation at the Hyper-Eutrophic Qishon River and Estuary System.Frontiers in microbiology · 2020Article
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Authors and funding
9 authors.
Funding
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Abstract
Marine snow aggregates represent heterogeneous agglomerates of dead and living organic matter. Composition is decisive for their sinking rates, and thereby for carbon flux to the deep sea. For oligotrophic oceans, information on aggregate composition is particularly sparse. To address this, the taxonomic composition of aggregates collected from the subtropical and oligotrophic Sargasso Sea (Atlantic Ocean) was characterized by 16S and 18S rRNA gene sequencing. Taxonomy assignment was aided by a collection of the contemporary plankton community consisting of 75 morphologically and genetically identified plankton specimens. The diverse rRNA gene reads of marine snow aggregates, not considering Trichodesmium puffs, were dominated by copepods (52%), cnidarians (21%), radiolarians (11%), and alveolates (8%), with sporadic contributions by cyanobacteria, suggesting a different aggregate composition than in eutrophic regions. Composition linked significantly with sampling location but not to any measured environmental parameters or plankton biomass composition. Nevertheless, indicator and network analyses identified key roles of a few rare taxa. This points to complex regulation of aggregate composition, conceivably affected by the environment and plankton characteristics. The extent to which this has implications for particle densities, and consequently for sinking rates and carbon sequestration in oligotrophic waters, needs further interrogation.
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