Institut Méditerranéen d’Océanologie

A global consistent database of plankton and detritus from in situ imaging by the Underwater Vision Profiler 5

Plankton and detritus are essential components of the Earth's oceans influencing biogeochemical cycles and carbon sequestration. Climate change impacts their composition and fluxes, and marine ecosystems as a whole. To improve our understanding of these changes, standardized obse...

Phosphorus limits the growth of bacterial and eukaryotic primary producers in recently deglaciated High Arctic soils

Glaciers are receding at unprecedented rates worldwide, exposing large areas of barren sediment that are quickly colonized by microbes. Nutrient availability is a critical driver of early ecosystem succession, but in the High Arctic its role has remained uncertain. This limits me...

Micro-scale organization of non-cyanobacterial diazotrophs drives nitrogen fixation in marine particles

Abstract Dinitrogen (N₂) fixation supplies reactive nitrogen to the ocean, and non-cyanobacterial diazotrophs (NCDs) are increasingly recognized as contributors. Marine particles have been theorized as hotspots where low oxygen and labile carbon favor N₂ fixation by NCDs, but emp...