Barrier layer (BL), by reinforcing ocean stratification, can maintain sea surface waters warming and limit nutrients supply into the euphotic layer, which is important to marine life. This study investigates the influence of stratospheric aerosol geoengineering (SAG) on the seasonal variability of the BL in the northeastern Gulf of Guinea (NEGG) and its causes based on data from the Geoengineering Large Ensemble project simula...

Subsurface microorganisms make up the majority of Earth's microbial biomass, but ecological processes governing surface communities may not explain community patterns at depth because of burial. Depth constrains dispersal and energy availability, and when combined with geographic isolation across landscapes, may influence community assembly. We sequenced the 16S rRNA gene of bacteria and archaea from 48 sediment cores across 3...

Regulating partner abundance may allow symbiotic organisms to mediate interaction outcomes, facilitating adaptive responses to environmental change. To explore the capacity for adaptive regulation in an ecologically important endosymbiosis, we studied the population dynamics of symbiotic algae in reef‐building corals under different abiotic contexts. We found high natural variability in symbiont abundance in corals across reef...