Marine Ecosystems

 

Click here to watch the effects of eutrophication.

 

Here's the excerpt from tomorrow's lab which will help in writing your Introduction.

 

Start with a purpose statement, give three supporting details, and end with a hypothesis.

 

Exploration Lab Observation
Eutrophication: Too Much of a Good
Thing?

 

 

 

 

Plants depend on nutrients such as phosphates and nitrates to survive. However, when people release large amounts of these nutrients into rivers and lakes, artificial eutrophication can occur. In artificial eutrophication, nutrients cause algae and plant life to grow rapidly and then die off and decay. When microorganisms decompose the algae and plant matter, they use up oxygen in the water, which causes the death of fish and other animals that depend on oxygen for survival. Eutrophication is commonly caused by phosphates, which are often found in detergents, and by
nitrates, which are found in animal wastes and fertilizers. In this lab, you will observe artificial eutrophication in an aquatic ecosystem.
OBJECTIVES
Observe the effects of nitrates and phosphates on an aquatic ecosystem.
Compare the growth of organisms in different levels of nutrients.
Predict possible effects nitrates and phosphates would have on an aquatic ecosystem in your area.

 

Turn quiz questions into true statements using the correct answers! This is a great review.

 

I will give you another daily grade for this activity!!!