4.3 Aquatic food production systems

Marine and Freshwater Ecosystems Notes Activity

Complete the reading activity on Kognity on 4.3.1 and 4.3.2 Marine and Freshwater Ecosystems. As you complete it make notes on the following:

Oceanic Zones
Marine Trophic Levels
Levels of Productivity in water ecosystems
Lakes Zones
Freshwater Trophic Levels

Fishing Debate Activity

You will be placed into three groups to debate three different fishing methods. For the debate you need to be ready to do the following:

Give an opening presentation on the reasons for using your fishing method
Be prepared to answer questions on the negatives of your system
Be prepared to ask questions that highlight the negatives of the other system

You will add this to the presentation on the correct slides below:

Fishing Debate

Useful Resources

Here is a section with some resources that may be useful for your presentation. Two years ago the IB MYP created an exam with a pre-resource that has a section on fishing this is a great resource and can be found here.

Will the ocean ever run out of fish? - Ayana Elizabeth Johnson and Jennifer JacquetWhen most people think of fishing, we imagine relaxing in a boat and patiently reeling in the day’s catch. But modern industrial fishing -- the kind that stocks our grocery shelves -- looks more like warfare. Ayana Elizabeth Johnson and Jennifer Jacquet explain overfishing and its effects on ecosystems, food security, jobs, economies, and coastal cultures.

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