What is a eutrophic lake quizlet?
eutrophic lake. Lake with a large or excessive supply of plant nutrients, mostly nitrates and phosphates. Compare mesotrophic lake, oligotrophic lake. floodplain.
What is a eutrophic lake?
Detailed Description. A Highly Eutrophic Lake: A eutrophic condition is a term describing a situation where of a water body has lost so much of its dissolved oxygen that normal aquatic life begins to die off. Eutrophic conditions form when a water body is “fed” too many nutrients, especially phosphorus and nitrogen.
What is eutrophication quizlet?
eutrophication. A process by which nutrients, particularly phosphorus and nitrogen, become highly concentrated in a body of water, leading to increased growth of organisms such as algae. cultural eutrophication.
Which is true of a eutrophic lake?
Eutrophic lakes are very fertile from all the nutrients carried into the lake from the surrounding landscape. These nutrients (Phosphorus and Nitrogen) support high densities of algae, fish and other aquatic organisms. Since eutrophic lakes have so much biomass, there is a lot of decomposition occurring at the bottom.
What causes a lake to be eutrophic quizlet?
Eutrophic lakes have high concentrations of chemicals required for life, and so have an abundance of life within them. They often contain mats of algae. How does a eutrophic lake differ from an oligotrophic lake? The process by which a body of water develops a high concentration of nutrients.
What is an oligotrophic lake quizlet?
Oligotrophic lakes. Lakes that have low productivity due to low amounts of nutrients.
What are some physical and chemical characteristics of a eutrophic lake?
Table 1.1 Some general characteristics of oligotrophic and eutrophic lakes.
| Characteristic | Oligotrophic | Eutrophic |
|---|---|---|
| toxic blooms | rare | frequent |
| plant nutrient availability | low | high |
| animal production | low | high |
| oxygen status of surfacewater | high | low |
What are the characteristics of a eutrophic lake?
Eutrophic state: Waters extremely rich in nutrients, with high biological productivity. These lakes have higher concentrations of phosphorus and chlorophyll and poorer clarity. Typically, they are shallow, often muddy and contain an abundance of aquatic plants.
What is true about eutrophication in lakes and other bodies of water?
Eutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants. The excess algae and plant matter eventually decompose, producing large amounts of carbon dioxide. This lowers the pH of seawater, a process known as ocean acidification.
What triggered eutrophication in the Gulf of Mexico?
Agriculture has caused an increase in the flow of nutrients from chemical fertilizers into bodies of water. The excess nutrients change the chemical composition of the water, impacting biological life forms in the affected areas. Sewage is another major source of nutrient flow to the Gulf.
Why do eutrophic lakes have low oxygen?
When the algae population is growing at a fast rate, it may block sunlight from reaching other organisms and cause a decrease of dissolved oxygen levels. When algae die, they are decomposed by bacteria which in this process consume oxygen so that the water can become temporarily hypoxic.
Are eutrophic lakes productive?
Eutrophic lakes, on the other hand, are productive: net primary production is between 600 and 8,000 milligrams of carbon per square metre per day, nutrients are in good supply, and secondary production is high.