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The Miracle Fish

The Miracle Fish. 3-26-12. 3-26-12 Bell Work:. What do you think would happen if all the big fish in a lake ate all the little fish in the lake. Explain your answer. . Daily Review:. What does a food chain show you?. Review:. If you do not want a pet anymore, what should you do with it?

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The Miracle Fish

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  1. The Miracle Fish 3-26-12

  2. 3-26-12 Bell Work: • What do you think would happen if all the big fish in a lake ate all the little fish in the lake. • Explain your answer.

  3. Daily Review: • What does a food chain show you?

  4. Review: If you do not want a pet anymore, what should you do with it? • Leave it at a park. • Return it to the store. • Let it go free. • Any of these options.

  5. 3-26-12 Objective: • I will decide if the Nile Perch should have been put into Lake Victoria. • HW: E-9 #6

  6. Video

  7. Notes: • 300 different types of fish used to be found in Lake Victoria. • 99% of these fish could not be found anywhere else. • By the 1950’s the lake was being overfished. • The Nile Perch were secretly added to the lake to help with the fish shortage.

  8. Notes: • Many fish species in the lake have become extinct due to the Nile Perch eating them. • Some of the fish ate algae. Now the algae growth in the lake has increased. • More people have jobs now. More fish to feed more people. • Nile Perch may be running out of food.

  9. E-3

  10. How did the amount of fish caught in Lake Victoria change from 1960-1989? • How did the introduction of Nile perch affect the food supply of the people who lived near Lake Victoria? • What effect did the introduction of Nile perch have on the organisms that lived in the lake? • What do you think will happen to Lake Victoria in 20 years?

  11. Closure: • Was it a good idea to put the fish in the lake? • Could they have done something else?

  12. Long Term Memory Review • Why do organisms have adaptations?

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