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WorksheetsGR8 Q3 TLE AFA L123 Aquaculture Quiz
Total questions: 15
Worksheet time: 8mins
Which aquaculture system involves fish being cultivated in natural bodies of water like lakes, rivers, or seas, with minimal infrastructure but enclosed by nets or cages?
Fishpond System
Cage System
Open Water System
Pen System
What is the minimum depth required for fishponds to allow fish to swim freely and ensure proper water exchange?
0.5 meters
1 meter
2 meters
3 meters
Which water parameter is crucial for fish health and should be maintained between 6.5 and 8.5 for most fish species?
Temperature
Oxygen Levels
pH Level
Salinity
What is the primary purpose of setting up aeration systems in aquaculture facilities?
To control water temperature
To ensure sufficient dissolved oxygen in the water
To monitor salinity levels
To prevent predators from entering the facility
Which of the following is NOT an importance of aquaculture methods and practices?
Ensures sustainable production of seafood
Improves food security and livelihoods
Helps reduce overfishing in natural bodies of water
Increases the salinity of freshwater bodies
What is the primary purpose of a water pump in aquaculture systems?
To measure the salinity of water
To circulate water and ensure proper oxygenation
To measure the temperature of water
To assess the water's transparency
Which tool is used to measure the salinity of water in aquaculture systems?
Laboratory thermometer
Dissolved oxygen meter
Salinometer or refractometer
Secchi disk
Why is a pH meter important in aquaculture?
It measures the water's transparency
It ensures a balanced pH level for healthy fish growth
It measures the amount of dissolved oxygen in the water
It circulates water in fishponds
What does a Secchi disk measure in aquaculture systems?
The temperature of water
The salinity of water
The water's transparency
The acidity or alkalinity of water
Which device is used to determine if the dissolved oxygen levels in water are adequate for fish survival?
Salinometer
Dissolved oxygen meter
Laboratory thermometer
pH meter
What is the primary purpose of a fish trap (Salakab)?
To stun fish temporarily
To catch fish in shallow waters using a funnel-shaped entrance
To dig up aquatic organisms from the bottom of water bodies
To surround fish with a large net
Which fishing gear is commonly used to scoop up fish or other aquatic organisms in small-scale aquaculture or fishing?
Seine Net
Scoop Net
Cast Net
Dredges
What is the main difference between stationary enclosing nets and mobile enclosing nets?
Stationary enclosing nets are used in deeper waters, while mobile enclosing nets are used in shallow waters.
Stationary enclosing nets are fixed in one location, while mobile enclosing nets can be moved to different areas.
Stationary enclosing nets are used for recreational fishing, while mobile enclosing nets are used for commercial fishing.
Stationary enclosing nets are used to stun fish, while mobile enclosing nets are used to trap fish.
Which fishing gear is specifically designed to collect shellfish or other bottom-dwelling organisms from the seabed?
Spears
Dredges
Hand Diggers and Collectors
Stupefying Aids
What are the two basic parts of a hook and line in fishing?
Hook and Net
Hook and Line
Line and Spear
Hook and Dredge
