Fishing and Aquaculture

Front

Which type of fishing has high rates of bycatch and is highly destructive of benthic communities?

Back

Trawling

Front

What type of fishing has the lowest rates of bycatch? Options: Pole Fishing, Long Line Fishing, Purse Seining, Trawling

Back

Pole Fishing

Front

The graph above shows the change in Canada’s harvest of Atlantic Cod from 1950-2004. What change occurred between 1992-1993?

Back

All of the above.

Front

The loss of the Atlantic Cod around Newfoundland occurred because those fisheries were…

Back

Overexploited.

Front

What position on the food chain do fish like Atlantic Cod and Bluefin Tuna occupy?

Back

TL5

Front

What kind of Marine-Trophic Index would you expect to have seen in the cod fisheries during the peak harvests in the 1950s and 1960s? Options: Low, between 1.0-2.0; Moderate, between 2.1-3.5; High, between 3.6-5.0; It would randomly vary between each year.

Back

High, between 3.6-5.0

Front

Which is true about aquaculturing? Options: The amount of aquacultured fish has decreased significantly in favor of wild-caught fish. Aquaculturing requires the same inputs as other forms of animal agriculture, including feed and antibiotics. Aquaculture operations do not affect the surrounding ecosystem in any adverse way. All of the above are true.

Back

Aquaculturing requires the same inputs as other forms of animal agriculture, including feed and antibiotics.

Front

The Swordfish has an MSC Certification label on it. What does this mean?

Back

The fish comes from a facility that follows sustainable fishing practices.

Front

The yellowfin tuna is marked as “avoid” through the Seafood Watch program. Which of these is a possible reason why? The fish were harvested exclusively through the use of pole fishing. The stocks of the fish are unusually high. The rate of bycatch may be high. Each of these is a possible reason.

Back

The rate of bycatch may be high.

Front

Which of these animals would be protected by the Marine Mammal Protection Act? A shark living in international waters. A dolphin living in the territorial waters of Brazil. A beluga whale living in the exclusive economic zone of the United States. A cod fish living off the coast of Alaska

Back

A beluga whale living in the exclusive economic zone of the United States.