A river is characterized by continuously flowing water from an upland source into lakes, wetlands or the sea. Rivers are fed by tributary streams or springs, and they include a river channel, shoreline and a floodplain.
All rivers have a river bed, which all differ from one another. Some rivers have beds filled with boulders and gravel, while others have beds that are either sandy and flat or muddy and full of weeds. River beds provide an essential habitat for the fish and animals that reside in the rivers. Alongside every river is a shoreline, and somewhere along the shoreline, there is a floodplain. A floodplain is the area where the river ends up when it has more water than it can hold in its channel. Floodplains are broad, flat areas that play an important role when it comes to nutrient cycling within a river, according to The Encycolpedia of Earth.
Some rivers have dams, which are built to control flood waters and/or produce hydroelectric power. A reservoir will hold the waters from a flood away from the dam until those waters can be slowly released. The water is released when the flow of the river is low, according to The Encyclopedia of Earth.Learn More
Examples of producers in lakes and ponds include algae, phytoplankton, starwort, spiked water milfoi, great willowherb, water lilies, native grasses and wildflowers. Aquatic plants come in three varieties: those that grow completely underwater, those that float on water and those that root underwater but reach above the water's surface.Full Answer >
According to About.com, the length of the Ganges is 1,569 miles. The river's source is where the Bhagirathi river emerges from the Gangotri Glacier in the Himalayas; the Ganges forms where the Bhagirathi meets the Alaknanda river.Full Answer >
The five Great Lakes are Lake Michigan, Lake Huron, Lake Ontario, Lake Superior and Lake Erie. These interconnected bodies of water are located on U.S. and Canadian territory. They account for roughly 84 percent of the surface freshwater in North America, according to the Environmental Protection Agency.Full Answer >
Abiotic factors in a lake ecosystem include non-living components such as light, temperature, pH of the water and oxygen content. Biotic factors include living components of a lake such as bacteria, phytoplanktons, aquatic plants, zooplankton, crustaceans, molluscs, insects, fish and other vertebrates.Full Answer >