Environmental Oceanography: Topics and Analysis
For Students

Issues Questions

Please read each question below and type your response into each corresponding box. When you are finished, fill out your name, e-mail address, and instructor's e-mail at the bottom of this form, and click submit to send a copy to your instructor.

1:  Using the data in Table I 21-1, on the axes below, or on our website (http://www.jbpub.com/abel/ ), plot the growth of aquaculture and wild fi sh catch (“Total Catch”) over the period of 1950 to 2005.

2:  Describe any trends apparent from your graphs, for example, which source is growing or changing fastest? Have there been intervals when rates of change differed from others? List them.

3:  Based on what you have learned in this issue, discuss the advantages and disadvantages of the use of GM salmon. Explain whether you think on balance GM salmon are a good idea.

4:  According to the National Academy of Science report, what is infesting wild salmon in British Columbia?

5:  What is the source of the infestation?

6:  How is the introduction of farmed salmon into the environment where they can breed with wild salmon harmful to wild salmon?

7:  Explain a criticism of the NAS paper as described by Dr. Hilborn.

8:  According to Dr. Hilborn, what are the safest, healthiest salmon to eat?

9:  What solution did environmental groups propose to the problems caused by raising salmon in pens?

10:  How did Dr. Hilborn characterize this proposal?

11:  Should the public have a right to buy fi sh raised as cheaply as possible without regard to the environmental impacts? Why or why not?

12:  What percentage of seafood eaten in the United States as of 2004 was farm raised, and what was the principal source of the farm raised seafood?

13:  According to the 2003 Nature article referred to in this report, what percentage of “large, valuable fi sh” had been killed off?

14:  How did the NPR report characterize the problem of waste from fi sh farms?

15:  How many cod were being raised in the submerged 80’ 50’ pen?

16:  What does Environmental Defense spokesperson Becky Goldberg assert is the largest problem facing large-scale farming of predatory fish?

17:  How did the University of New Hampshire researcher respond to the concern expressed in Question 21-16?

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