1. Oligotrophic Lakes By: Emily SEars

2. Productivity
Very low
square milligrams per day

3. Major Life Forms
Rainbow trout, golden trout and cutthroat trout are commonly found
Algae, Phytoplankton

4. Abiotic Limiting Factors
The limiting factors are phosphorus, salinity, sunlight, temperature, dissolved oxygen, fertilizers and pollutants.

5. Special Features Clear Water Excess Oxygen

6. Plant adaptation
cold temperatures
excess oxygen
lack of phosphorus

7. Animal Adaptations
Populations of algae and the animals that feed on them are lower in oligotrophic lakes because of low nutrient concentrations.
Lake trout, require cold, well-oxygenated water and primarily live in the hypolimnion of oligotrophic lakes.

8. Citations