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FISHERIES
01-10: CBDADCCCAB
11-20: CACBCBDAAC
21-30: BCDACCCDBB
31-40: DCDCABAAAC
COMPLETED
(1a)
(PICK ANY FIVE)
(i) Fishing nets
(ii) Fishing lines
(iii) Fishing traps
(iv) Fishing hooks
(v) Fishing spears
(vi) Fishing harpoons
(vii) Fishing seines
(1b)
(PICK ANY THREE)
(i) Ensure the water quality is suitable for the fingerlings, including temperature, oxygen levels, and pH.
(ii) Quarantine the fingerlings before introducing them to the main fish population to prevent the spread of diseases or parasites.
(iii) Handle the fingerlings carefully to minimize stress and injuries during the stocking process.
(iv) Gradually acclimate the fingerlings to the new water environment by adjusting the temperature and gradually introducing them to the water.
(v) Monitor the fingerlings closely after stocking to ensure they are adapting well and provide appropriate feed and nutrition.
(1c)
(PICK ANY FIVE)
(i) Maintaining optimal water quality parameters such as temperature, dissolved oxygen levels, pH, and ammonia levels.
(ii) Providing appropriate and nutritious feed for the fry, such as microalgae or finely ground commercial fish feed.
(iii) Regular monitoring of water quality parameters and adjusting them as needed.
(iv) Maintaining a suitable stocking density to prevent overcrowding and competition for resources.
(v) Regular cleaning and maintenance of the nursery tank to remove excess waste and prevent the build-up of harmful bacteria or toxins.
(vi) Implementing a proper lighting regime to simulate day and night cycles, which helps regulate the fry’s behavior and growth.
(vii) Regularly grading or sorting the fry based on size to minimize size-related competition and ensure uniform growth.
(viii) Minimizing stress on the fry by avoiding sudden changes in water parameters or handling them gently during any necessary transfers or procedures.
(1d)
(i) Fishermen
(ii) Wholesalers
(iii) Retailers.
NUMBER SIX
(6a)
[PICK ANY FOUR]
(i) Poor quality water in the pond or aquarium
(ii) Overcrowding of fish in the pond or aquarium
(iii) Poor water management practices such as inadequate filtration and aeration
(iv) Disease outbreaks among the fish
(v) Predation by other animals such as birds or mammals
(vi) Feed management issues such as poor nutrition or overfeeding
(6bi)
[PICK ANY ONE]
(i) Adding agricultural lime or dolomite to the water to increase its alkalinity
(ii) Installing aeration devices to increase oxygen levels in the water
(iii) Changing the water more frequently to dilute the acidic components
(iv) Avoiding the use of acid-based fertilizers near the pond area
(v) Adding crushed oyster shells or coral to the pond to increase alkalinity
(vi) Monitoring and adjusting the water chemistry regularly to maintain optimal conditions
(6bii)
[PICK ANY THREE]
(i) Agricultural lime
(ii) Dolomite
(iii) Ash from wood or rice husks
(iv) Crushed coral or shell
(vi) Sodium bicarbonate (baking soda)
(vi) Calcium carbonate (chalk or limestone)
5a)
[PICK TWO ONLY]
1.Hand Netting
2.Seining
3.Fish traps
5bi)
1.Gutting and Cleaning
2.Filleting
3.Drying and Smoking
4.Freezing
5.Canning
[PICK ANY THREE]
5bii)
1.Drying
2.Salting
3.Fermentation
4.Smoking
5.Pickling
6.Canning
5c)
1.Poor water quality
2.Insufficient oxygen
3.Disease and parasites
4.Poor nutrition
5.Predation
5d)
Algal bloom refers to the rapid growth or proliferation of algae in bodies of water such as lakes, rivers, or coastal areas.
NUMBER 2
(2ai)
Fish packaging is the process of appropriately packing and preserving fish and seafood products for storage, transportation, and sale.
(2aii)
(PICK FOUR ONLY)
(i) Plastic Bags
(ii) Styrofoam Trays
(iii) Vacuum-Sealed Pouches
(iv) Wax-Coated Cardboard Boxes
(v) Ice Packs or Gel Packs
(2aiii)
(PICK TWO ONLY)
(i) It provides adequate protection to the fish during handling
(ii) It maintains the freshness of the fish
(iii) It ensures the safety of the fish and the consumers
(iv) It is strong and durable enough to withstand the rigors of transportation and storage
(v) It is compatible with the type of fish being packaged
(2b)
(i) Subsistence fisheries involves small-scale operations WHILE Industrial fisheries involves large-scale operations.
(ii) Subsistence fisheries helps secure food for local consumption WHILE Industrial fisheries are driven by economic motives.
(iii) Subsistence fisheries rely on rudimentary fishing methods WHILE Industrial fisheries employ advanced technology and equipment.
(iv) Subsistence fisheries have a lower environmental impact WHILE Industrial fisheries have significant environmental impacts.
(2c)
(PICK FOUR ONLY)
(i) Water Quality
(ii) Oxygenation
(iii) Density and Space
(iv) Temperature Control
(v) Duration of Transport
(vi) Container Design
(2d)
(PICK FOUR ONLY)
(i) Wood Chips
(ii) Sawdust
(iii) Wood Pellets
(iv) Herbs and Spices
(v) Tea Leaves
(vi) Fruit Peels
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