Seasonal phytoplankton and geochemical shifts in the subsurface chlorophyll maximum layer of a dimictic ferruginous lake

Abstract

Subsurface chlorophyll maxima layers (SCML) are ubiquitous features of stratified aquatic systems. Availability of the micronutrient iron is known to influence marine SCML, but iron has not been explored in detail as a factor in the development of freshwater SCML. This study investigates the relationship between dissolved iron

Taxonomically resolved iron uptake and carbon fixation by phytoplankton within a ferruginous, meromictic lake

“…This study also found that cryptophyte abundance had a strong positive correlation to Secchi depth, which indicates that cryptophytes are oftentimes found and therefore more adapted to low light conditions. This low light adaptation could be resultant by an abundance of chlorophyll within these cryptophytes (Swanner et al, 2022).…”