Nitrogen concentration shapes the size structure and the functional diversity of phytoplankton communities in the southern Indian Ocean.

ABSTRACT: Phytoplankton are fundamental to marine ecosystems, biogeochemical cycling and climate regulation. Their community structure and productivity are shaped by biotic and abiotic factors, notably temperature and macronutrient concentrations. Climate change is altering ocean vertical stratification and nutrient dynamics, with complex and often poorly understood impacts on phytoplankton communities and global primary production. To contribute characterizing these relationships, we analysed planktonic community composition using 18S rRNA amplicon sequencing and imaging flow cytometry in the southern Indian Ocean across a strong environmental gradient from warm, stratified, N-depleted (but relatively P-repleted) waters in the north to cold, mixed, macronutrient-replete waters in the south. Phytopl

SUBMITTER: Berthelot H 

PROVIDER: S-EPMC12663791 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature