Freshwater and coastal ecosystem responses
Lakes, rivers and coastal areas are literally downstream of driver and impact from the atmosphere and terrestrial systems. Impacts and processing of DOM, impacts of light and nutrient, impacts of elemental concentrations and ratios (biological stoichiometry) all affect community composition and overall productivity in these aquatic systems.
Notably, the “browning” of surface waters increases light attenuation, thereby decreasing primary production, but also changes in fluxes and inputs of nutrient elements will affect primary production and community composition. The research in this group also address the impacts of reduced calcium of the biota.
The approaches cover large scale spatial and temporal models in the boreal zone, partly based on existing databases, and encompass biota from bacteria to fish. Field studies and experiments are important tools.