WorksheetsReviewer in G8 Aquaculture Set B
Total questions: 25
Worksheet time: 13mins
Which of the following is an example of a biological hazard in fisheries?
Slippery floors
Fish parasites and bacteria
Broken equipment
High noise levels
What is organic aquaculture?
The use of chemical-based feeds for faster growth
The farming of aquatic organisms using natural feeds and eco-friendly methods
The cultivation of ornamental fish in tanks
The breeding of fish using artificial hormones
Which aquaculture method involves raising fish in cages or nets suspended in natural water bodies?
Pond culture
Raceway system
Cage culture
Recirculating system
What is the primary goal of occupational safety and health in fisheries?
To increase the number of workers
To ensure the safety, health, and welfare of fishery workers
To promote faster fish production
To replace manual work with machines
Why are fisheries considered one of the most hazardous occupations?
It involves long hours and exposure to unpredictable weather conditions.
It is done only on land.
Workers are highly protected from risks.
It requires minimal equipment.
How does organic aquaculture help protect the environment?
By reducing the use of chemicals and maintaining water quality
By using synthetic feeds for faster fish growth
By allowing uncontrolled fish waste
By promoting non-renewable energy in fish farms
What is one disadvantage of organic aquaculture?
It produces high-quality and chemical-free fish
It often requires more time and higher production costs
It supports sustainable fish farming
It promotes environmental conservation
How does following OSH practices benefit fishery workers?
It helps prevent accidents and occupational diseases
It reduces income opportunities
It increases pollution risks
It shortens fishing seasons
A worker notices a broken fishing net and sharp hooks scattered on the deck. What OSH action should be taken first?
Ignore them and continue working
Report and repair or remove the hazards immediately to prevent injury
Ask someone else to fix them later
Store them under the table
A fish farmer wants to raise tilapia using both natural pond food and commercial feed. Which aquaculture method is this?
Extensive
Intensive
Semi-intensive
Organic
Compare the environmental impact of intensive aquaculture with organic aquaculture. Which statement is true?
Intensive aquaculture produces less waste than organic aquaculture.
Organic aquaculture is more sustainable because it limits chemical and waste pollution.
Intensive aquaculture is safer for the environment.
Both methods have the same ecological impact.
Why should government and fishery industries strictly implement OSH and organic aquaculture standards?
To ensure worker safety, protect ecosystems, and promote sustainable fish production
To increase competition between fish farmers
To reduce the number of workers
To make fishing faster and riskier
Which fishing method involves the simplest form of gathering aquatic resources using bare hands?
Active gear
Passive gear
Falling gear
Dragged gear
Which of the following is a wounding gear used to injure or catch fish from a distance?
Fish pot
Spear or harpoon
Net trap
Bamboo screen
What type of gear uses baited hooks to catch fish?
Line fishing
Barrier trap
Scooping net
Drive-in gear
Which fishing tool is used for catching fish in rivers with strong currents and is made over circular frames?
Hoop net
Fyke net
Filter net
Pound net
What equipment is used to remove silt or mud from a pond?
Digging tool
Desilting equipment
Levelling tool
Pump
Why are fish pots considered a passive gear?
Because they actively chase the fish
Because they rely on the fish to enter the trap on their own
Because they use explosives
Because they are dragged through the water
How does a barrier or fish coral function as a fishing device?
By creating sound to attract fish
By guiding fish into an enclosure where escape is difficult
By cutting through the water at high speed
By filtering water for small fish only
What makes drive-in gear unique from other fishing methods?
It uses scare lines or objects to drive fish into nets
It relies on baited hooks
It uses mechanical boats to scoop fish
It works only in shallow ponds
Why are gill nets described as “curtain-like”?
Because they hang vertically in the water to entangle fish by the gills
Because they are used as shelter for fish
Because they float horizontally on the water
Because they resemble fabric curtains used in houses
A fisherman wants to catch squid using hooks and a light source. Which line fishing method should he use?
Longline
Jigger
Troll line
Pole and line
Compare a spear and a harpoon. Which statement best differentiates them?
Both have detachable handles.
A spear has a fixed handle, while a harpoon’s blade can detach from the handle.
A harpoon is used only on land.
A spear always uses explosives.
Which fishing method poses the greatest environmental risk if misused?
Handline fishing
Mechanical stupefying (dynamite fishing)
Gill net fishing
Fish pots
If you were to design an eco-friendly fishing device, which feature would you include?
Use of natural bait and biodegradable materials to avoid pollution
Use of fine mesh nets for more catch
Use of chemicals to attract fish
Use of metal traps to last longer
