All flashcards
Flashcard 1: Identify one factor that influences the growth rate of aquaculture species.
Answer: Water temperature influences growth rates. Optimal temperatures maximize metabolism and feed conversion efficiency.
Flashcard 2: Identify one method to manage disease in aquaculture.
Answer: Vaccination is a method to manage disease in aquaculture. Prevents disease outbreaks that can devastate farm populations.
Flashcard 3: What is mariculture?
Answer: Mariculture is aquaculture practiced in marine environments. Saltwater farming that utilizes ocean and coastal environments.
Flashcard 4: What does the term 'stocking density' refer to in aquaculture?
Answer: Stocking density is the number of organisms per unit area or volume. Higher densities can reduce growth rates and increase stress.
Flashcard 5: What is the main use of seaweed in aquaculture?
Answer: Seaweed is used for food and biofuel production. Valuable for nutrition, pharmaceuticals, and renewable energy.
Flashcard 6: Identify one method to reduce environmental impacts of aquaculture.
Answer: Implementing waste management systems reduces impacts. Proper treatment prevents nutrient pollution and ecosystem damage.
Flashcard 7: What is a recirculating aquaculture system (RAS)?
Answer: RAS is a closed-loop system that filters and reuses water. Maximizes water efficiency and controls environmental conditions.
Flashcard 8: Identify one advantage of a recirculating aquaculture system.
Answer: RAS minimizes water use and waste discharge. Enables year-round production with controlled water parameters.
Flashcard 9: Identify a challenge faced by aquaculture.
Answer: Disease management is a challenge faced by aquaculture. Dense populations increase disease transmission and treatment costs.
Flashcard 10: Name a method of aquaculture.
Answer: Pond culture is a method of aquaculture. Uses controlled water bodies for fish cultivation and management.
Flashcard 11: What is the role of phytoplankton in aquaculture systems?
Answer: Phytoplankton provide a primary food source in aquaculture systems. Form the base of aquatic food webs and oxygen production.
Flashcard 12: What is the effect of overfeeding in aquaculture?
Answer: Overfeeding can lead to water pollution and waste. Excess feed decomposes, depleting oxygen and releasing toxins.
Flashcard 13: Identify a challenge faced by aquaculture.
Answer: Disease management is a challenge faced by aquaculture. Dense populations increase disease transmission and treatment costs.
Flashcard 14: Which type of aquaculture is practiced in freshwater environments?
Answer: Pond aquaculture is practiced in freshwater environments. Utilizes natural or artificial ponds for fish cultivation.
Flashcard 15: What is the main concern with antibiotic use in aquaculture?
Answer: Antibiotic resistance is the main concern. Overuse creates resistant bacteria that threaten human health.
Flashcard 16: Name one potential negative impact of aquaculture on wild populations.
Answer: Genetic contamination is a potential negative impact. Escaped farmed fish may interbreed with wild populations.
Flashcard 17: Identify one sustainable practice in aquaculture.
Answer: Using plant-based feeds is a sustainable practice. Reduces dependence on wild fish for feed production.
Flashcard 18: What is the significance of dissolved oxygen in aquaculture?
Answer: Dissolved oxygen is crucial for the respiration of aquatic organisms. Essential for cellular respiration and metabolic processes.
Flashcard 19: Which method of aquaculture is practiced in tanks or enclosures?
Answer: Recirculating aquaculture system (RAS) is practiced in tanks. Provides controlled environment with water filtration and reuse.
Flashcard 20: What is the role of feed conversion ratio (FCR) in aquaculture?
Answer: FCR measures the efficiency of converting feed into biomass. Lower FCR indicates more efficient and profitable operations.
Flashcard 21: Identify one common species cultivated in aquaculture.
Answer: Tilapia is a common species cultivated in aquaculture. Hardy, fast-growing fish ideal for farming in various environments.
Flashcard 22: What is polyculture in aquaculture?
Answer: Polyculture is cultivating multiple species in the same environment. Maximizes space efficiency and can improve water quality.
Flashcard 23: Identify one type of shellfish commonly farmed in aquaculture.
Answer: Oysters are commonly farmed shellfish. Filter feeders that improve water quality while growing.
Flashcard 24: Identify a species commonly used in marine aquaculture.
Answer: Atlantic salmon is commonly used in marine aquaculture. High-value species widely farmed in net pens globally.
Flashcard 25: Name one type of freshwater aquaculture.
Answer: Cage culture is a type of freshwater aquaculture. Uses enclosed nets suspended in ponds or lakes.
Flashcard 26: What is the main use of seaweed in aquaculture?
Answer: Seaweed is used for food and biofuel production. Valuable for nutrition, pharmaceuticals, and renewable energy.
Flashcard 27: Identify one method to reduce environmental impacts of aquaculture.
Answer: Implementing waste management systems reduces impacts. Proper treatment prevents nutrient pollution and ecosystem damage.
Flashcard 28: What is a fishmeal in the context of aquaculture?
Answer: Fishmeal is a protein-rich feed made from fish. Ground fish used as primary protein source in aquaculture feeds.
Flashcard 29: What is the main purpose of aquaculture?
Answer: The main purpose is to produce food and resources like fish, shellfish, and seaweed. Meets global protein demand while reducing pressure on wild fisheries.
Flashcard 30: What role do hatcheries play in aquaculture?
Answer: Hatcheries produce juvenile fish for aquaculture operations. Ensures consistent supply and genetic quality for farming operations.