4
QuizMultiple Choice

Global Connection: Newfoundland Cod Fishery Collapse

Question 4 • SC332 Environmental Science B

What is the biological impact of minimum catch sizes on a population of fish?

Answer
A
The population comes to be dominated by smaller, slower-growing individuals.
B
Older, less productive adults are removed, improving the population’s health.
C
It applies a selective pressure for larger, faster growing fish.
D
The fish in the population produce more and healthier eggs to compensate.

Explanation

A minimum catch size allows fish above a certain size to be harvested, so larger and faster-growing fish are more likely to be removed. Smaller, slower-growing fish are more likely to survive and reproduce, which can make the population increasingly dominated by them over time. Thus, the correct choice is “The population comes to be dominated by smaller, slower-growing individuals.”

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