Eutrophication

Question 1

Why are nutrients essential?

Answer 1

They maintain growth and overall maintenance of organisms

Question 2

Why is Phosphorus important?

Answer 2

For growth and reproduction of plant species

Question 3

Why is Nitrogen important?

Answer 3

For chlorophyll production, proteins and DNA

Question 4

Are some nutrients more important than others?

Answer 4

Yes

Question 5

What is Liebig’s Law of the Minimum?

Answer 5

Nutrients are yield dependent and questions how available they are in relation to needs.

Question 6

P-Limited and N-Limited

Answer 6

P is least abundant in freshwater

N is least abundant in marine water

Question 7

Is the process of eutrophication natural?

Answer 7

Yes and no

Question 8

What are the processes of eutrophication?

Answer 8

Increase in nutrient concentration
Increase in the supply of nutrients
Turbidity (enhanced algal growth)
change in algal capacity (algal blooms)
Algae dies after exhausting the system
Dead algae sinks
Decomposition
Stratification

Question 9

What is the characterisation of eutrophication?

Answer 9

Algal blooms increase in frequency and duration
Hypoxia
Increased O2 demand
Lower amenity to humans economically and recreationally

Question 10

Algal development?

Answer 10

Nutrients= max algal crop size determined by N/P

Light and temp of the water column