Fishing

Mr. Anderson discusses the impact of fishing on the environment, highlighting overfishing and the tragedy of the commons. He explains various fishing techniques and the concept of sustainable yield. The video also covers aquaculture, its benefits, and drawbacks, and the importance of regulations and quotas. Population growth models are used to illustrate sustainable fishing practices. The video concludes with global fish harvest trends and the role of aquaculture in meeting seafood demands.

What is the main issue caused by overfishing?

• Improved fish quality

• Tragedy of the commons

• Increased fish population

• Decreased fishing costs

Which of the following is a benefit of aquaculture?

• No need for waste management

• Higher fish density

• Increased reliance on wild catch

• Elimination of all fishing regulations

What happens to a fish population when it reaches its carrying capacity?

• It levels off

• It decreases rapidly

• It continues to grow exponentially

• It becomes extinct

How can sustainable yield be maintained according to the growth rate graph?

• By catching fish at a rate higher than the growth rate

• By catching fish at random rates

• By catching fish at a rate equal to the growth rate

• By not catching any fish

What has contributed to the leveling off of global fish harvests since 1950?

• Increased wild catch

• Reduction in fishing technology

• Decline in fish demand

• Introduction of aquaculture

What is a potential downside of aquaculture?

• No need for antibiotics

• Mixing of native and non-native species

• Unlimited fish growth

• No environmental impact

What regulatory measure can help ensure sustainable fishing?

• Unlimited fishing licenses

• Individual transferable quotas

• Increased fishing subsidies

• No fishing zones