Do you think it can be harmful to have too much of a resource? Think about us… What resources do we use? Now think about aquatic ecosystems…

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Presentation transcript:

Do you think it can be harmful to have too much of a resource? Think about us… What resources do we use? Now think about aquatic ecosystems…

Learning outcomes You should be able to: – Outline the processes of eutrophication – Evaluate the impacts of eutrophication. All of you should be able to: – Identify that the increase in nutrients leads to a state of hypoxia Most of you should be able to: – Outline the process by which the increase in nutrients leads to the state of hypoxia and the effects Some of you might be able to: – Identify the role of positive feedback in these processes

What is eutrophication? Lake with eutrophication Oligotrophic lake

Normally limiting factors that limit the growth of vegetation.

Add further detail to your diagrams using the information from this video. Note the positive feedback that is occurring.

Use his information to complete your diagrams and make a note of the impacts of eutrophication.

To do… Create a cartoon strip of the different stages that occur during eutrophication. Make it look as attractive as you can. Make sure that you include the key terms that we have seen, like: leaching, eutrophication, nitrogen, phosphates, etc.