Activity 72: The Miracle Fish Challenge: What are the trade- offs of introducing a species into a new environment? Key Vocabulary: Evidence Trade-Offs Ecologists

Getting Started: Imagine you have a pet that you no longer want. What is the best way to get rid of it? What are the trade-offs of your decision?

Lake Victoria- Background Lake Victoria is surrounded by three countries: Tanzania, Uganda, and Kenya. The ownership of the lake is divided among the three as follows: Tanzania has 49%, Uganda has 45%, and Kenya has 6%. The lake itself has an area of 26,830 square miles, which is nearly the size of the state of West Virginia. It is the second largest lake in the world (Lake Superior, one of the Great Lakes, is the largest). Despite its size, it is a shallow lake of less than 300 feet at its deepest point.

Map of Lake Victoria

PROCEDURE Together: Read scenario on page E-4 Figure out your role Take turns reading the Scenario on pages E-6 to E-8 After you read, fill in the Intra-Act worksheet as your “role”. Answer Analysis Questions 1-4 as a group in your notebooks

Roles  You are thinking like you are… #1  James #2  James’ Father #3  Owner of fishing company #4  An environmentalist

Should the Nile Perch have been introduced into lake Victoria? Yes: No:

SHOULD NILE PERCH HAVE BEEN INTRODUCED INTO LAKE VICTORIA? SUPPORT YOUR ANSWER WITH 2 PIECES OF EVIDENCE AND DISCUSS AT LEAST ONE TRADE –OFF OF YOUR DECISION. Homework Analysis Q # 6