5.16 Aquaculture

• What is aquaculture?

  Cultivating aquatic organisms
• Aquaculture was used in ancient China to cultivate carp for food as early as 2000 BCE.
• What are ponds used for in aquaculture?

  Cultivating aquatic organisms
• Cages in aquaculture are placed offshore in natural water bodies for high production of fish like salmon
• Match the aquaculture method with its disadvantage:

  Ponds ↔️ Subject to weather

  Cages ↔️ Water pollution

  Raceways ↔️ High energy consumption

  RAS ↔️ High initial cost
• Which type of fish is commonly cultured in finfish aquaculture?

  Salmon
• Crustaceans like shrimp are often cultured in coastal regions.
• What is one use of farmed algae in aquaculture?

  Biofuels
• Aquaculture involves cultivating aquatic organisms in controlled environments
• What is an advantage of using ponds in aquaculture?

  Cost-effective
• Cages in aquaculture can contribute to water pollution and disease spread.
• What is an example of a mollusk commonly cultured in aquaculture?

  Oysters
• Water pollution in aquaculture is often caused by nutrient runoff
• Escapees from aquaculture farms can interbreed with wild populations and alter genetic diversity.
• What is an economic benefit of aquaculture?

  Job creation
• Aquaculture enhances food security by increasing seafood production
• Steps to mitigate environmental impacts of aquaculture:

  1️⃣ Controlled feeding

  2️⃣ Water treatment systems

  3️⃣ Careful site selection

  4️⃣ Vaccination

  5️⃣ Sterile fish
• Aquaculture has both benefits and challenges.
• One benefit of aquaculture is enhancing food security.
• Aquaculture supports conservation by reducing wild fish capture.
• One challenge of aquaculture is environmental impacts.
• What is a disease management issue in aquaculture caused by intensive farming practices?

  Overcrowding
• Match the aspect of aquaculture with its corresponding benefit or challenge:

  Food Production ↔️ Enhances food security

  Economy ↔️ Provides economic benefits

  Environment ↔️ Supports conservation
• What is one environmental challenge related to aquaculture mentioned in the table?

  Disease management issues
• The economy in aquaculture benefits from job creation.
• High operational costs are a challenge for the economy in aquaculture.
• Arrange the following aspects of aquaculture to highlight their interrelationships:

  1️⃣ Food Production: Enhances food security

  2️⃣ Economy: Provides economic benefits

  3️⃣ Environment: Supports conservation
• What is the earliest documented evidence of aquaculture from ancient China?

  Carp cultivation
• Match the aquaculture method with its advantages, disadvantages, and examples:

  Ponds ↔️ Cost-effective, needs large areas

  Cages ↔️ High production, disease spread

  Raceways ↔️ Efficient feeding, water dependency

  RAS ↔️ Reduced water use, high initial cost
• Cages in aquaculture allow efficient use of natural waters.
• RAS systems in aquaculture require high initial investment and complex operation.
• What is an advantage of using ponds in aquaculture?

  Cost-effective
• Cages in aquaculture are known for their high production
• Raceways in aquaculture require high energy consumption.
• What is a key advantage of Recirculating Aquaculture Systems (RAS)?

  Reduced water use
• Match the organism with its example:

  Finfish ↔️ Salmon

  Crustaceans ↔️ Shrimp

  Mollusks ↔️ Oysters

  Algae ↔️ Seaweed
• What is a primary cause of water pollution in aquaculture?

  Nutrient runoff
• Clearing coastal areas for aquaculture leads to habitat destruction
• Disease transmission is increased in intensive aquaculture systems.
• What genetic impact can aquaculture escapees have on wild populations?

  Altering genetic diversity