Water browning or brownification refers to increasing water color, often related to increasing
dissolved organic matter (DOM) and carbon (DOC) content in freshwaters. Browning has …

Dissolved organic matter (DOM) is recognized for its importance in freshwater ecosystems,
but historical reliance on DOM quantity rather than indicators of DOM composition has led to …

Observations of increasing water color and organic carbon concentrations in lakes are
widespread across the Northern Hemisphere. The drivers of these trends are debated …

The North Temperate Lakes Long-Term Ecological Research site includes seven lakes in
northern Wisconsin that vary in hydrology, trophic status, and landscape position. We …

Photochemical processes taking place in surface fresh waters play an important role in the
transformation of biorecalcitrant pollutants and some natural compounds and in the …

Cold-water species in temperate lakes face two simultaneous climate-driven ecosystem
changes: warming and browning of their waters. Browning refers to reduced transparency …

Dissolved organic matter (DOM) composition in lakes is controlled by multiple environmental
drivers, but the relative importance of various drivers remains poorly understood at the …

Secchi depth (SD), a primary metric to assess trophic state, is controlled in many lakes by
algal densities, measured as chlorophyll‐a (chl‐a) concentration. Two other optically related …

Northern lakes are experiencing widespread increases in dissolved organic carbon (DOC)
that are likely to lead to changes in pelagic phytoplankton biomass. Pelagic phytoplankton …

Dissolved organic matter (DOM) is a crucial driver of various biogeochemical processes in
aquatic systems. Thus, many lakes and streams have been investigated in the past several …