Aquaculture and Its Ecological Impacts

What is the primary purpose of aquaculture?

• To increase the number of wild fish

• To promote recreational fishing

• To eliminate the need for seafood

• To reduce the strain on wild fish populations

What is a significant ecological impact of feeding carnivorous fish in aquaculture?

• Reduction in wild fish due to bycatch

• Decreased fish prices

• Improved water quality

• Increased plant growth

How does aquaculture affect mangrove forests?

• It increases their biodiversity

• It has no impact

• It requires their destruction

• It helps in their growth

What is a consequence of using wild seed stock in aquaculture?

• Increased wild fish populations

• No impact on wild fish

• Reduction in wild fish numbers

• Improved fish health

What happens when non-indigenous species escape from aquaculture farms?

• They have no impact

• They reduce water pollution

• They hybridize with local species

• They improve local biodiversity

What is a risk associated with the escape of non-indigenous species?

• Increased fish prices

• Introduction of pathogens

• Improved fish health

• Decreased water pollution

What is a potential impact of aquaculture effluents on surrounding waterways?

• Decreased nutrient levels

• Reduced fish populations

• Increased nutrient levels

• Improved water clarity

What is biomagnification in the context of aquaculture?

• Reduction of toxins in the food chain

• Increase of toxins in the food chain

• No change in toxin levels

• Improved fish health

How does aquaculture potentially affect wild fish populations?

• Improves their health

• Reduces their numbers

• Has no effect

• Increases their numbers

What is the estimated biomass loss of wild fish for every kilo of aquaculture-produced fish?

• 100 grams

• 200 grams

• 1 kilogram

• 500 grams