Freshwater Ecosystem Science Project
By: Abi G, Emily B, Jakob I, Dalton J
Some need the movement of the stream or river water to survive
In fast moving waters - animals that have suction-cup like structures on their bodies to hold onto rocks.
Others thrive in still water environments.
There are a variety of
- And so many others
Plants and algae are important to freshwater biomes
- they provide oxygen through photosynthesis
- food for animals in this biome
In fast streams and rivers many plants have special structures that keep them from being carried away
- Some aquatic plants have strong roots that keep them anchored securely, while others have stems that bend easily with the movement of the water.
Plants who live in still waters have different adaptations.
- Water lilies, algae, and duckweed float on the surface.
- Cattails and reeds grow along the shoreline of many freshwater ecosystems.
- Freshwater plants are found in rivers, streams and ponds throughout the U.S.
- Fragrant Water Lily grows in still water that is up to 8 feet deep. It forms roots in mucky soil, then sends out long petioles to the surface of the water where the leaves and flowers are formed.
- Cattail is an important freshwater aquatic plant that is native to the U.S. The roots and new shoots are eaten by wildlife, and the fluffy seeds on mature seed heads are used by birds to make nests.
- Skunk Cabbage is found along stream beds where water levels fluctuate often.
- European or Eurasian milfoil is best known as a plant used by aquarium enthusiasts. It floats on the surface of the water creating dense mats that can interfere with the oxygenation process created by moving water.
Abiotic Factors are non-living conditions which can influence where plants or animals live. Important abiotic factors in a freshwater ecosystem include:
- Light Availability
- Average temperature
- Average precipitation
-Short nose sturgeon: is a small North American sturgeon. It can be found in 16 to 19 large river systems.
-Yaqui chub: Is a small minnow like fish. Can be found in northern Mexico and the United States.
-Humans effect the fresh water lakes and rivers that they might not know they are even doing.
-The biggest reason that humans effect the lakes and rivers is palution from power plant, people also if they don't throw away there trash that could make its way into the lakes, fish can get stuck on the trash or kutt.
-Another things humans do to effect the fresh water is over fishing that can disrupt the food chain. The food chain keeps the hole ecosystome in order if one of the biggest fish goes extinct than another smaller fish might get over populated.
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Endangered Species: http://en.m.wikipedia.org/wiki/Gila_purpurea
Endangered Species: http://en.m.wikipedia.org/wiki/Acipenser_breviros...
Specific locations ( picture only ): http://en.m.wikipedia.org/wiki/List_of_shipwrecks_in_the_Great_Lakes