Answers Environmental Science B WHSGlobal Connection: Water Management and Katrina

Global Connection: Newfoundland Cod Fishery Collapse Answers

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Why should fishery managers not view cod stocks as separate from other fish stocks such as capelin and mackerel?

These fish species all form schools together and are therefore caught together.

Capelin and mackerel both compete with cod for ocean floor habitat.

These populations of these fish species are all related through the ocean food web.

There is no reason for fishery managers not to view cod stocks individually.

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

The population comes to be dominated by smaller, slower-growing individuals.

Older, less productive adults are removed, improving the population’s health.

It applies a selective pressure for larger, faster growing fish.

The fish in the population produce more and healthier eggs to compensate.

Why did Canada extend its territorial waters out to 200 nautical miles in the 1970’s.

to protect and conserve Canada’s cod stocks

to protect the resources for domestic exploitation

to annoy U.S. fishermen

to restrict cod fishing practices

Cod has been a commercially important fish species since _______.

the 13th century

the discovery of North America

the 1960’s

the 1980’s

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