Environmental Science – 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-LS1-5

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

The graph shows the change in Canada's harvest of Atlantic Cod from 1950-2004. 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-LS2-1

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-LS2-3

Which letter indicates international waters, where no single nation has jurisdiction?

• D

• A

• B

• C

Which letter represents territorial waters, used up until the 1960s to mark exclusive fishing zones?

• A

• B

• C

• D

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

• C

• A

• B

• D

Establishes monitoring, quotas, and bycatch rules for fisheries in the United States.

• Exclusive Economic Zone

• Magnus-Stevenson Fishery Conservation and Management Act (MSA)

• Endangered Species Act

• Marine Mammal Protection Act

• Convention on International Trade in Endangered Species (CITES)

Tags

NGSS.HS-LS2-7