freshwater systems
Non-marine aquatic environments
Freshwater systems are bodies of water with low salt content—rivers, lakes, streams, ponds, wetlands, and groundwater.
The term appears in ecology and environmental science to distinguish these habitats from marine and brackish environments: Freshwater systems support distinct ecosystems.
The phrase encompasses both the water itself and the organisms that depend on it.
- springRecoiling metal spiral
- trout streamBrook stocked with salmonids
- algaePrimitive aquatic photosynthesizers
- hydrologyScience of water distribution
- wetlandWaterlogged land ecosystem
flood plain · river · stream · dissolved oxygen · pollution control · biodiversity · lake · amphibians · habitat restoration · irrigation · eutrophication · cattails · pond · lily pads · bass fishing · aquifer · herons · murky
freshwater systemsocean ecosystems
Saltwater biological communities
seas · marine environments · estuaries · coral reef ecosystems · marine ecosystems
freshwater systemsdeserts
Abandons or barren lands
forests · grasslands · tundra