Lake basin characteristics and morphometry.
Physical characteristics: lake models.
The heat budget of lakes.
Morphology and flow in streams.
Inorganic nutrients: nitrogen, phosphorus, and other nutrients.
The inorganic carbon complex: alkalinity, acidity, CO2, pH, total inorganic carbon, hardness, aluminum.
Composition and biomass of phytoplankton.
Collection, enumeration, and biomass of zooplankton.
Benthic fauna of streams.
Primary productivity of phytoplankton.
Feeding rates by protists and larger zooplankton.
Predator-prey interactions.
Enumeration of fish or other aquatic animals.
Bacterial growth and productivity.
Decomposition: relative bacterial heterotrophic activity on soluble organic matter.
Decomposition: particulate organic matter.
Experimental manipulation of model ecosystems.
Diurnal changes in a stream ecosystem: an energy and nutrient budget approach.
Diurnal changes in lake systems.
Historical records of changes in the productivity of lakes.
Effect of sewage outfall on a stream ecosystem.
Estimates of whole lake metabolism: hypolimnetic oxygen deficits and carbon dioxide accumulation.
