Freshwater Ecosystems Practice
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Freshwater Ecosystems Test Review 2015 Completed review on separate paper will be worth 5 points on your test 1. Define the following terms: limnology, lentic, lotic, plankton, zooplankton, phytoplankton, nekton, benthos, submergents, and emergents.
2. What is overturn? Why is it important?
3. What are the three temperature based layers in a lake? How are they different and where are they found? In what layer are most fish found? Draw a cross section of a lake and label the temperature layers and the thermocline.
4. What is a thermocline? In which temperature layer does the thermocline exist? During what season do you find the largest thermocline in a lake? Why does the thermocline form? Describe how the thermocline is related to fall overturn.
5. How does dissolved oxygen enter the water of a lake?
6. How is the amount of oxygen that water can hold affected by temperature? By pressure?
7. How does respiration affect the amount of oxygen in a lake?
8. How does decomposition affect the amount of oxygen in a lake? In which layer/zone is the change most evident (i.e. where does most decomposition occur)? What organisms are considered to be decomposers?
9. In a midsummer lentic ecosystem, oxygen levels become stratified. Describe why.
10.What is turbidity? How can turbidity change the depth of the trophogenic zone?
11.How do lakes form?
12.What and where is the littoral zone? What type of producers live in the littoral zone?
13.What and where is the limnetic zone? What type of producers live in the limnetic zone?
14.What are plankton? What are the types of plankton?
15.What’s the difference between a eutrophic and oligotrophic lake?
16.Define the following terms associated with Lotic Ecosystems:
a. Mouth b. Delta c. Headwaters d. Estuary
e. Riffle f. Pool g. Meander h. floodplain
17.Describe differences between a scraper, collector, shredder, parasite and piercer.
18.What is CPOM and FPOM and where are they found in a lotic ecosystem?
19.Explain why there are different types of organisms in different parts of a river. Use to complete review and study:
Lentic and Lotic notes
Interpreting Diagrams: Lentic Ecosystems
Lentic Ecosystem Drawing
Benthic Macroinvertebrate Booklet
Freshwater Crossword Freshwater Ecosystems Test Review 2015 Completed review on separate paper will be worth 5 points on your test 1. Define the following terms: limnology, lentic, lotic, plankton, zooplankton, phytoplankton, nekton, benthos, submergents, and emergents.
2. What is overturn? Why is it important?
3. What are the three temperature based layers in a lake? How are they different and where are they found? In what layer are most fish found? Draw a cross section of a lake and label the temperature layers and the thermocline.
4. What is a thermocline? In which temperature layer does the thermocline exist? During what season do you find the largest thermocline in a lake? Why does the thermocline form? Describe how the thermocline is related to fall overturn.
5. How does dissolved oxygen enter the water of a lake?
6. How is the amount of oxygen that water can hold affected by temperature? By pressure?
7. How does respiration affect the amount of oxygen in a lake?
8. How does decomposition affect the amount of oxygen in a lake? In which layer/zone is the change most evident (i.e. where does most decomposition occur)? What organisms are considered to be decomposers?
9. In a midsummer lentic ecosystem, oxygen levels become stratified. Describe why.
10.What is turbidity? How can turbidity change the depth of the trophogenic zone?
11.How do lakes form?
12.What and where is the littoral zone? What type of producers live in the littoral zone?
13.What and where is the limnetic zone? What type of producers live in the limnetic zone?
14.What are plankton? What are the types of plankton?
15.What’s the difference between a eutrophic and oligotrophic lake?
16.Define the following terms associated with Lotic Ecosystems:
a. Mouth b. Delta c. Headwaters d. Estuary
e. Riffle f. Pool g. Meander h. floodplain
17.Describe differences between a scraper, collector, shredder, parasite and piercer.
18.What is CPOM and FPOM and where are they found in a lotic ecosystem?
19.Explain why there are different types of organisms in different parts of a river. Use to complete review and study:
Lentic and Lotic notes
Interpreting Diagrams: Lentic Ecosystems
Lentic Ecosystem Drawing
Benthic Macroinvertebrate Booklet
Freshwater Crossword