Applied Science Fishery and Aquaculture

Based on the graph, which type of fishing yield has shown continuous growth since the 1980s?

• Capture fisheries

• Aquaculture

• Both

• Neither

According to the graph, fishing yields from capture fisheries plateaued in the early 1980s.

• True

• False

Which of the following statements is supported by the graph?

• Capture fisheries yields have continued to increase rapidly after 1980.

• Aquaculture yields have filled the supply gap left by plateaued capture fisheries.

• Both capture fisheries and aquaculture yields plateaued in the 1980s.

• Aquaculture yields have decreased since 2000.

Fisheries: Where is fishing the most productive?

• In coastal areas

• In deep ocean waters

• In freshwater lakes

• In mountain streams

Fill in the blank: A ______ is an ecosystem where the concentration of fish is high enough for commercial harvesting.

• fishery

• desert

• forest

• savanna

According to the diagram, which organisms are at the top of the marine food pyramid?

(multiple answers)

• Bluefin Tuna

• Gray Reef Shark

• Black Grouper

• Bar Jack

How many pounds of phytoplankton, seagrass, and algae are present at the base of the pyramid?

• 1,000 pounds

• 100 pounds

• 10,000 pounds

• 500 pounds

Fishery productivity is limited by ______ and plankton growth.

• algae

• sunlight

• temperature

• salinity

Algae and plankton growth are limited by nutrient (nitrates, phosphates) availability.

• True

• False

Match the following organisms to their correct trophic level biomass in the marine food pyramid

• Black Grouper

• 1000 pounds

• Gray Reef Shark

• 100 pounds

• Sea Grass

• 10 pounds

• Zoo Plankton

• 1 pound