ESS Topic 4.3.5 Maximum Sustainable Yield

What does MSY stand for in the context of fisheries?

• Maximum Stock Yield

• Minimum Sustainable Yield

• Minimum Stock Yield

• Maximum Sustainable Yield

What is the carrying capacity in an ecosystem?

• The minimum number of individuals needed for survival

• The number of individuals that can be harvested sustainably

• The average number of individuals in a population

• The maximum number of individuals an environment can support

What happens when a fish population reaches its carrying capacity?

• The population size fluctuates wildly

• The population size increases indefinitely

• The population size decreases rapidly

• The population size stabilizes

What is the significance of the peak in the parabola curve related to fish populations?

• It shows the average growth rate

• It marks the point of population extinction

• It indicates the minimum sustainable yield

• It represents the maximum sustainable yield

What does it mean if a fish population is underexploited?

• The population size will decrease

• The population will become extinct

• The population size will remain constant

• The population size will increase

What led to the decline of the Grand Bank stocks of Nova Scotia?

• Decrease in water temperature

• Introduction of new fish species

• Modernization of fishing fleets

• Increase in predator populations

What is a moratorium in the context of fisheries?

• A subsidy for sustainable fishing

• A ban on commercial fishing

• A limit on the number of fish caught

• A tax on fishing activities

Which fishery successfully regrew by fishing below the parabola curve?

• Chilean jack mackerel

• Japanese pilchard

• Southern bluefin tuna

• Northwest Atlantic sea scallop

What causes variations in the carrying capacity of an ecosystem?

• Environmental and anthropogenic factors

• The age of the fish population

• The time of day

• The color of the water

What is the relationship between European pilchard and European hake?

• They do not interact in the ecosystem

• Hake is a predator of pilchard

• Pilchard is a predator of hake

• They are both prey to the same predator