Limnology
Limnology is the scientific study of inland waters, including their physical, chemical, and biological properties and the ecosystems they support.
Lake stratification: The formation of distinct vertical layers in a lake because water density varies, usually with temperature. Thermal layers govern mixing, oxygen distribution, and habitat in many lakes.
Eutrophication: The enrichment of water with nutrients that increases biological production and can reduce oxygen availability. It links nutrient inputs to algal growth, oxygen depletion, and ecosystem change.
Water quality: The physical, chemical, and biological condition of water in relation to its uses and ecological health. Limnological observations provide the evidence used to assess inland-water quality.
Hydrology: The study of the occurrence, movement, distribution, and properties of water on Earth. Hydrologic flows connect inland waters to precipitation, groundwater, and surrounding catchments.
François-Alphonse Forel: A Swiss scientist who founded modern lake science through research on Lake Geneva. Forel established systematic study of lakes and gave limnology its early framework.
Thermal stratification: The vertical layering of water caused by temperature-dependent density differences. It is the temperature-driven form of lake layering central to seasonal lake behavior.
Algal bloom: A rapid increase in the abundance of algae or cyanobacteria in a water body. Blooms are a visible response to nutrient conditions and can disrupt lake ecosystems.
Lake restoration: The management and rehabilitation of degraded lakes to improve ecological condition or human uses. Restoration applies limnological knowledge to diagnose and reverse lake degradation.
Oceanography: The scientific study of the ocean’s physical, chemical, geological, and biological systems. It studies marine waters, while limnology focuses primarily on inland waters.
Lake Geneva: A large freshwater lake on the border between Switzerland and France. Forel’s detailed investigations of this lake helped shape early limnology.