APES Earth's Resources note set 1 - fishing

Which of the following is a direct economic advantage associated with aquaculture?

• Aquaculture breeds genetically modified fish to increase the amount of biodiversity in the population.

• Aquaculture reduces the number of fishing operations in an area.

• Aquaculture produces large amounts of seafood for human purchase and consumption year-round.

• Aquaculture requires large bodies of water for its operations.

Which of the following best explains why the maximum sustainable yield for ocean fisheries has been exceeded?

• Populations of fish-eating birds such as the albatross have increased.

• Too many fish of reproductive age are harvested.

• Too many marine fish farms have been created.

• Everything trapped by large bottom trawl nets is used for food.

• For every calorie of fish caught, a ship uses only about 0.5 calorie of fuel energy.

Which of the following is an unintended environmental consequence of aquaculture?

• Meeting an increasing demand for seafood

• Decreasing the prevalence of disease in nearby wild fish

• Contamination of surrounding water by organic waste

• High initial cost of facility

One way that consumers can help prevent a decrease in the number of fish species that are experiencing population declines is to

• help get laws passed that allow more fishing in areas that are not fished currently, therefore opening access to greater numbers of fish

• purchase fish harvested through the use of purse seining and long-lining methods so that only the largest fish are caught

• invest in companies that fish near coral reefs, which would take pressure off deep-sea species and eliminate the need for advances in technology

• eat fish that are caught using sustainable harvesting methods, therefore ensuring fish populations remain stable and reducing the amount bycatch harvested

Which of the following is true of farm-raised salmon?

• They are more genetically diverse than their wild counterparts.

• They seldom escape from their containment areas.

• They have no impact on the quality of the water in which they are raised.

• They are often infected with parasites and sea lice.

• They are maintained at lower population densities than are wild salmon.

The major cause for the decline in the worldwide catch of fish since 1990 is

• acid deposition

• escalating price of fuel

• competition from aquaculture

• overfishing

• decline in market price

Which of the following best describes why aquaculture has grown considerably in several parts of the world?

• Increased nutrient availability in the ocean from fish waste has led to an increase in the density of fish that can be supported in aquaculture facilities.

• The use of antibiotics in aquaculture has led to the evolution of resistant bacteria that support the immune system of various fish species.

• Wild fish have increased in size and fitness from the competition with nonnative fish that have escaped from aquaculture facilities.

• Aquaculture fisheries provide a larger and more consistent quantity of fish year-round than do wild fisheries.

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

• Pole Fishing

• Long Line Fishing

• Purse Seining

• Trawling

Tags

NGSS.MS-LS2-5

type of fishing has the lowest rates of bycatch.

• Pole Fishing

• Long Line Fishing

• Purse Seining

• Trawling

Tags

NGSS.MS-LS2-5

Which is true about aquaculturing?

• 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.

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4