Fishing and Aquaculture

What abiotic factor of coastal aquatic ecosystems most limits the productivity of a fishery?

• Water temperature

• Water pH

• Nutrient (nitrate + phosphate) availability

• Dissolved oxygen levels

• Salinity

Tags

NGSS.MS-LS2-4

What two areas are productive fisheries most likely to be found in?

• Open ocean

• Shallow coastal areas

• Deep (aphotic) ocean

• Upwellings

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What year(s) shows the clearest evidence of a collapse of fishing stocks?

• 1965

• 1985

• 1995

• 2005

Tags

NGSS.MS-LS2-4

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

• Underexploited

• Fully exploited

• Overexploited

• None of the above.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

As apex predators, what trophic level do Atlantic Cod occupy?

• TL1

• TL2

• TL3

• TL4

• TL5

Following the collapse of the cod fishing industry in 1992, fishermen began “fishing down the food chain”. What average trophic level did their catches mostly come from?

• TL4 and above

• TL3

• TL2

• TL1

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Refer to the diagram showing ocean zones labeled A, B, C, and D. Which letter indicates international waters, where no single nation has jurisdiction?

• D

• A

• B

• C

Refer to the diagram showing ocean zones labeled A, B, C, and D. Which letter represents territorial waters, used up until the 1960s to mark exclusive fishing zones?

• A

• B

• C

• D

Refer to the diagram showing ocean zones labeled A, B, C, and D. Which letter represents exclusive economic zones, now currently used as fishing boundaries?

• C

• A

• B

• D

Tags

NGSS.MS-ESS3-1

NGSS.MS-ESS3-4

For a quota to be successful…

• It must be set at the maximum amount that the consumers will purchase each year.

• It must be set at or above the maximum sustainable yield for the fishery.

• It must be set at or below the maximum sustainable yield for the fishery.

• Quotas have not been shown to be successful in preventing fish stock collapse.

Tags

NGSS.MS-LS2-5