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Transcript of Freshwater Biome
the dump of many anthropogenic
wastes. Pollution from industrial and agricultural run-off has deeply
affected the freshwater biome in more ways than one. Because of pollution infecting the water, many animals are suffering due to the poor water quality and maybe even the loss of their home. Freshwater biomes do not get as many wastes as the ocean biomes, but it gets enough to where it is negatively murdering the species living in the biome. Abiotic Factors The freshwater biomes are located in every continent. Freshwater examples include lakes, rivers, streams, and creeks. The Great Lakes, Amazon River, and Russian Lakes are a few examples of the freshwater biomes. Abiotic Factors (Continued) Precipitation
maintains freshwater biomes because water runs over the surface of land and flows back to them
creates freshwater biomes due to run off of water from land The Nature Conservancy is a program that conserves ecologically important lands and preserving water for both humans and animals. They have saved over 5,000 miles of rivers globally and operate over 100 marine projects as well. Another program that actively plays a role in conserving freshwater biomes is DIVERSITAS. They provide the sound scientific basis needed for decision making when the freshwater biome may be undergoing an effective change. They play a role in conserving the biomes across the globe and preserve as much as they can. Bibliography :D Heterotrophs: fish, birds, insects, clams, shrimp,
Fresh water temperatures may differ between uniform or disparate among ponds and lakes depending on seasons
Freshwater biomes include a thermocline, which is a zone in between both top and bottom layers that temperature changes continuously.
During spring and fall seasons, layers mix with each other which causes a stable temperature around 4 degrees Celsius.
Oxygen circulates throughout the lake. Summer Temperature: 22 Degrees Celsius at the top, 4 Degrees Celsius at the bottom Winter Temperature: Top layer can be at freezing point of 0 degrees Celsius, bottom layer remains the same Water Characteristics
May be distinguished due to
Static (doesn't move) ex: Ponds and Lakes
Dynamic (moving) ex: Rivers and Streams Lake water is static, yet it moves and waves are formed due to air flow and seasonal change Turnover: During the season of fall, surface water cools down and sinks and the bottom layers move up. This process regulates the temperature of the lake. In the freshwater biomes, abiotic limiting factors include salinity, sunlight, temperature, dissolved oxygen, fertilizers and pollutants. The biotic limiting factors include the amount of available food, the number of a species' predators, diseases and parasites. Decomposers: fungi, bacteria, and earthworms Endangered Species: Turtles, fish, and mussels are all endangered species of the freshwater biome. Turtles have become endangered because of the destruction of their habitat. Also, freshwater turtles are eaten due to their medical benefits and their shells are used in cosmetics. Fish have become endangered because of pollution, whether it be from agriculture or industrial run-off. Non-native species and dams are also harmful to the fish population. Mussels are endangered because of non-native species and pollution. Other invasive species, such as zebra mussel and quagga mussel, outcompete the native mussel when it comes to a source of valuable food and oxygen. Keystone Species: Trout plays a big role when it comes to the economy. Many fishermen depend on capturing trout and selling them for money, especially here in the United States. Even if they are being killed, they still fund our economy and give society a job. Freshwater Biome - Animal Facts and Information. (n.d.). Amazing Animal Facts and Information. Retrieved October 15, 2012, from http://bioexpedition.com/freshwater-biome/
Mahan, J., & Mahan, A. (n.d.). The Great Lakes. Sweetwater Visions--focusing on the Great Lakes ecosystem. Retrieved October 15, 2012, from http://sweetwatervisions.com/Pages/glinfo.html
Freshwater Biome. (n.d.). Idiotica.com. Retrieved October 15, 2012, from http://www.idiotica.com/cranium/encyclopedia/content/Freshwater.htm
McGrath, S. (n.d.). Endangered Animals in a Freshwater Biome | eHow.com. eHow | How to Videos, Articles & More - Discover the expert in you. | eHow.com. Retrieved October 20, 2012, from http://www.ehow.com/info_8220795_endangered-animals-freshwater-biome.html
Nature Conservancy | Protecting Nature, Preserving Life. (n.d.). Nature Conservancy | Protecting Nature, Preserving Life. Retrieved October 20, 2012, from http://www.nature.org/
Mission and History — DIVERSITAS. (n.d.). Welcome — DIVERSITAS. Retrieved October 21, 2012, from http://www.diversitas-international.org/about/mission-and-history