Unveiling Short-Scale Responses: How Pico- and Nanoeukaryotic Plankton Navigate Environmental Variability in a Coastal Upwelling System.

ABSTRACT: For decades, identifying pico- and nanoeukaryotic plankton has been challenging due to their small size, leaving a significant gap in our knowledge of their composition and dynamics in comparison with their larger counterparts. The advent of molecular techniques unlocked new possibilities for exploring this hidden diversity. We applied metabarcoding targeting the V9 region of 18S rDNA to discern the principal taxonomic groups of pico- and nanoeukaryotes in the Ría de Vigo during the upwelling season. Nanoeukaryotes (NE) exhibit greater diversity compared to picoeukaryotes (PE). Specifically, NE were mainly comprised of nano-sized diatoms and dinoflagellates, many of them uncategorized novel species. Within PE, Syndiniales and Marine Stramenopiles (MAST) were the main components identified.

SUBMITTER: Frojan M 

PROVIDER: S-EPMC12001073 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature