Fish Farming, Processing and Conservation

These flashcards cover essential concepts from the lecture on fish farming, including biological practices, tools, processing methods, and conservation techniques.

What is selective breeding in fish farming?

Selective breeding is the practice of choosing fish with desirable traits for reproduction to produce offspring with improved genetic characteristics.

What is a hatchery?

A hatchery is a facility that provides controlled conditions for fish eggs to hatch and develop into fry.

What factors are crucial in water management during fish farming?

Maintaining optimal water quality such as temperature, oxygen levels, and pH is crucial for healthy fry growth.

What is the purpose of biosecurity measures in fish farming?

Biosecurity measures aim to prevent disease outbreaks through procedures like quarantine, disinfection, and health monitoring.

What are the different types of fish stocking cultures mentioned in the grow-out stage?

The types include pond culture, cage culture, and raceways and tanks.

Why is monitoring stocking density important in fish farming?

Overcrowding can lead to stress, disease, and poor growth; therefore, managing stocking density is important.

What are some feeding strategies used in fish farming?

Proper feeding schedules, balanced diets, and efficient feed conversion ratios are crucial feeding strategies.

What equipment is used for testing water quality in fish farming?

Water quality test kits are used for testing parameters like pH, dissolved oxygen, ammonia, nitrite, and nitrate levels.

What is the function of aeration machines in fish farming?

Aeration machines are used to increase oxygen levels in the water, which is vital for fish health.

What are two primary considerations for deciding when to harvest fish?

Fish size and maturity, as well as market demand, are key considerations for determining when to harvest.

What are some common methods of processing fish?

Common methods include boiling/steaming, frying, and roasting/grilling.

What is wet salting in fish preservation?

Wet salting involves immersing fish in brine to dehydrate them and prevent spoilage.

What practices are essential for sustainable fish stock management?

Techniques like setting catch limits, establishing protected areas, and employing environmentally friendly aquaculture practices are essential.

What management practices help maintain fish populations in natural habitats?

Management practices include regulating fishing activities, enforcing laws, and keeping accurate data on fish populations.

What is an artificial habitat in fish farming?

Artificial habitats include aquaculture facilities, re-circulating aquaculture systems, and artificial reefs designed to provide suitable environments for fish.