Productivity in Lakes Flashcards
1
Q
What is productivity related to?
A
The amounts of C:N:P
2
Q
Oligotrophic systems
A
Nutrient poor, low in biodiversity.
3
Q
Eutrophic systems
A
Nutrient rich, high in biodiversity.
4
Q
Mesotrohic systems
A
Have moderate productivity.
5
Q
Hypertrophic/hypereutrophic systems
A
Excessively productive.
6
Q
Dystrophic systems
A
Canadian Shield lakes in which water is stained brown with dissolved and colloidal humus materials; low in calcium; acidic.
7
Q
Autotrophic lakes
A
organic compounds produced are from photosynthesis rather than imported from outside lake; rate of inorganic carbon fixation by primary producers related to trophic status
* Oligotrophic: 7-25 g C/m2/yr
* Naturally Eutrophic: 75-250 g C/m2/yr
* Mesotrophic: 25-75 g C/m2/yr
* Polluted waters: 350-700 g C/m2/yr
