State of worlds Fisheries

What is maximum sustainable yield? How does this concept relate to the concept of overfishing?

• The greatest yield that can be taken without jeopardizing future catches; it relates to overfishing when this yield is exceeded.

• The smallest yield that can be taken to ensure fish population growth; it relates to overfishing when this yield is not met.

• The average yield that can be taken without affecting fish population; it relates to overfishing when this yield is doubled.

• The yield that can be taken only during specific seasons; it relates to overfishing when taken year-round.

According to fisheries scientists, the FAO, the National Marine Fisheries Service, and other sources, what is the condition of the world's fisheries?

• The sea is an infinite resource.

• The sea is a limited resource and is being exhausted.

• The sea has an unlimited supply of fish.

• The sea's resources are increasing rapidly.

What reasons do declining fisheries appear to contribute to overfishing?

• Increased demand and technological advancements.

• Decreased demand and lack of technology.

• Stable demand and traditional fishing methods.

• Reduced demand and advanced technology.

What potential problems result from commercial fishing for species low on the food web?

• It can lead to the collapse of entire ecosystems.

• It has no significant impact on ecosystems.

• It only affects the targeted species.

• It benefits the entire food web.

What indirect effects does overfishing have on the environment?

• It causes an increase in biodiversity.

• It leads to habitat destruction and ecosystem imbalance.

• It results in more fish for other predators.

• It has no impact on the environment.

What four recommendations did the Pew Oceans Commission make for the restoration and preservation of US biological resources?

• Implementing stricter fishing quotas, protecting habitats, reducing pollution, and enhancing marine research.

• Increasing fishing quotas, reducing marine research, allowing habitat destruction, and increasing pollution.

• Eliminating fishing quotas, ignoring habitat protection, increasing pollution, and reducing marine research.

• Allowing unlimited fishing, protecting habitats, increasing pollution, and reducing marine research.

What is one factor that complicates the process of overfishing?

• Increase in fish population

• Use of maximum sustainable yield

• Decrease in fishing technology

• Abundance of prey fish

What is the main concern of fisheries scientists regarding the Atlantic bluefin tuna?

• Overpopulation

• Extinction

• Migration

• Pollution

What is the term used for the unintentional capture of organisms in fishing?

• Overfishing

• Bycatch

• Trawling

• Gill netting

What percentage of the worldwide fish catch is estimated to be bycatch?

• 10%

• 15%

• 25%

• 30%