14.7 Understanding The Issue

CHECK YOUR UNDERSTANDING

Question 14.1

Why might aquaculture be considered the “future of fishing?”

A.
B.
C.
D.

Question 14.2

Why might bottom-trawling fishing techniques make it harder for the cod population to recover even after the ships have left the area?

A.
B.
C.
D.

Question 14.3

In what way is the RAS waste-treatment plan an example of biomimicry?

A.
B.
C.
D.

Question 14.4

The collapse of the cod fishery is a tragedy of the commons because:

A.
B.
C.
D.

Question 14.5

A disadvantage of net pen operations is:

A.
B.
C.
D.

Question 14.6

"Fishing down the food chain" refers to:

A.
B.
C.
D.

WORK WITH IDEAS

Question 14.7

Why do we define a fishery in terms of human use? Does that diminish it as an ecological concept?

Question 14.8

Ecosystems like those found in the extreme environment of the Arctic have simple food webs, with only a few organisms at each trophic level, whereas ecosystems with more moderate climates have more robust food webs with many species. Why is a simple food web more vulnerable to collapse than a more complex one?

Question 14.9

What are the advantages of RAS like the one Yonathan Zohar is developing and where (in what nations or regions) will they likely be adopted? If adopted in these areas, will they help lower the impact of eating fish? Explain.

Question 14.10

Consider the triple bottom line and propose (based on current technology) a low-impact way for people in developing nations to meet their need for fish.