5.5 Fishing and Marine Life Quiz

(a)   people around the world rely on fish for a major source of protein in their diet.

• 1 billion
• 2 billion
• 3 billion
• 4 billion

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What is a characteristic of long-line fishing?

• Uses a net with two drawstrings

• Uses a cone-shaped net

• Uses a fishing line with many hooks

• Uses sonar technology

Another name for drift-nets is (a)  

• Purse seine
• Gill-nets
• Trawling nets
• Sonar nets

What percentage of US catch is thrown away as bycatch?

• 10%

• 20%

• 30%

• 40%

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The decline of fish populations since 1950 has resulted in a (a)   decline.

• 50% decline
• 70% decline
• 90% decline
• 100% decline

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What is a significant impact of fishing gear pollution?

• Improved fish habitats

• Increased fish populations

• Destruction of coral reefs

• Creation of artificial reefs

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What device must all commercial fishers use to protect turtles?

• Turtle Exclusion Devices (TEDs)

• Turtle Protection Nets (TPNs)

• Turtle Safety Devices (TSDs)

• Turtle Guard Nets (TGNs)

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Match the following impacts with their effects on aquaculture.

• Negative impact on coastal ecosystems

• Increases biodiversity

• Decreases environmental contaminants

• Destruction of coastal areas

• Enhances aquatic animal well-being

• Increases fish health

• Positive impact on species variety

• Reduces pollution

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What is Integrated Multi-Trophic Aquaculture (IMTA)?

• A method to cultivate only fish

• A method to cultivate all trophic levels

• A method to cultivate only plants

• A method to cultivate only algae

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What is a concern with high density of fish in aquaculture?

• Increased chances of disease

• Decreased chances of disease

• Increased fish size

• Decreased fish size

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