Gewässer

Gewässer refers to any body of water on the Earth's surface. This broad term encompasses a wide range of aquatic environments, both natural and artificial. Natural bodies of water include oceans, seas, lakes, rivers, streams, ponds, and groundwater. Oceans and seas are the largest bodies of saltwater, covering over 70% of the Earth's surface. Lakes are inland bodies of water, typically freshwater, though some are saline. Rivers and streams are flowing bodies of water, originating from sources like springs or melting snow and ice. Ponds are smaller, often shallower bodies of still water. Groundwater is water held underground in the soil and rock layers.

Artificial or man-made Gewässer include canals, reservoirs, and artificial lakes, which are created for purposes such as navigation, water storage, or recreation. The physical characteristics of Gewässer vary greatly in terms of size, depth, temperature, salinity, and the organisms they support. Aquatic ecosystems are vital for biodiversity, providing habitats for countless species of plants and animals. They also play a crucial role in the global water cycle, regulating climate and providing essential resources for human life, including drinking water, agriculture, and industry. The study and management of Gewässer are important for environmental protection and sustainable resource use.