Physical
What Physical Restoration strategy could be used to remove highly contaminated sediment for a lake bed?
Dredging
What are some chemical problems that arise from freshwater ecosystems?
Excess nutrients, Low/High pH, Toxic sediments
This biological restoration practice involves the manipulation of trophic levels.
What is biomanipulation?
This Minnesota campaign encourages boaters to prevent AIS spread by cleaning, draining, and drying their equipment.
What is the Clean-Drain-Dry campaign?
Which approach is considered a “living shoreline”?
A) Concrete wall
B) Riprap with no plants
C) Marsh plantings and logs
D) Steel bulkhead
C) Marsh plantings and logs
What is the general formula for alum?
(Al₂(SO₄)₃)
The process by which microbes convert nitrate into nitrogen.
What is denitrification?
This type of regulation used on Lake Minnetonka protects littoral habitat by reducing wave erosion and sediment resuspension, especially during high-water years.
What are no-wake zone ordinances?
Give two benefits of hydrodynamic control structures in river restoration.
Restore sediment transport, reduce erosion, improve aquatic habitat, increase floodplain connectivity
This common agricultural amendment is used to raise pH in lakes and soils, but over-dosing can cause ammonia toxicity.
What is liming
The biological restoration practice associated with floating treatment wetlands.
What is microbial remediation?
Name at least one (1) of the four (4) Minnesota public institutions that granted funding to support special social restoration water resource projects like the native submerged species in Bald Eagle Lake.
What are BSWR's Clean Water Fund, LCCMR, Clean Water Partnership (CWP), and the Minnesota Pollution Control Agency (MPCA)?
Which factor should be considered when choosing a shoreline stabilization method?
A) Wave energy
B) Soil type
C) Desired habitat benefits
D) All of the above
D) All of the above
The name for practices like precision fertilizer application, cover crops, and riparian buffers that aim to stop nutrients at their source.
What are Best Management Practices (BMPs)?
An ecological phenomenon where changes in the population of one species trigger a series of effects throughout the food web, impacting various other species within the overall ecosystem structure.
What is a trophic cascade?
In this Minnesota region, there is a critical need for social restoration because only 14% of lakes meet recreation standards.
What is southern and western (SW) Minnesota?
A fast flowing stream is resuspending a lot of nutrient containing sediment. Generally, what should be done to the stream to prevent this from happening?
Slow down the flow of the stream.
Bonus: what would you do to slow down the flow without changing the size of the channel?
While liming can treat the symptom (acidity), this practice is considered the only long-term solution to stop the acid-producing process in peatlands.
What is rewetting?
Species of bacteria known for their ability to break down hydrocarbons.
What is Pseudomonas/Rhodococcus?
This social restoration project at Bald Eagle Lake, supported by the MN DNR and the lake association, resulted in a strong native plant recovery. In 2023, the littoral zone of surveyed native vegetation points reached, give or take, what percentage? (0.1% margin of error for correct answers) ;)
What is 62% (Also 61.9%-62.1%)