Morphological and Molecular Diversity of Phytoplankton in Beibu Gulf, Northern South China Sea

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

ABSTRACT The Beibu Gulf, a vital region for marine biodiversity and aquaculture, is increasingly affected by nutrient‐driven ecological shifts in the phytoplankton community. This study combined morphology eDNA metabarcoding (18S rDNA V4) to investigate diversity environmental drivers during summer winter Gulf. Metabarcoding detected 3.5 times more species, contributing higher species richness than morphology. identified 200 genera from eight phyla, while only 49 six phyla. Both methods revealed different dominant communities. Bacillariophyta Haptophyta dominated community based on morphology, winter, respectively; meanwhile, Dinophyta both seasons under due their high 18S copy number. Altogether, 83 HAB and/or toxic were identified, among which 10 dominant, suggesting risk of outbreaks Phytoplankton abundance increased south north west east seasons, following input dissolved inorganic nitrogen (DIN) silicate. Excess ammonium can promote dominance Scrippsiella trochoidea Heterocapsa circularisquama , positioning them as emerging excess DIN caused extreme phosphorus limitation favored Phaeocystis globosa provided comprehensive description influence

Language: Английский

The combination of microscopic and metabarcoding analyses revealed a high diversity of algal bloom species in the Taiwan Strait

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 216, P. 118027 - 118027

Published: April 22, 2025

Language: Английский