2025 WAEC Fisheries 3 Practical Questions and Answers

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2025 WAEC Fisheries 3 Practical Questions and Answers

*WAEC FISHERIES*

(2a)
(PICK ANY FIVE)
(i) Select a suitable site with good water supply and proper drainage.
(ii) Clear the area of any vegetation, debris, or obstacles.
(iii) Mark the boundaries of the pond and determine the shape and size.
(iv) Excavate the pond to the desired depth, ensuring proper sloping.
(v) Construct an inlet and outlet for water flow, ensuring proper drainage.
(vi) Line the bottom with clay or compact soil to prevent water leakage.
(vii) Fill the pond with water and allow it to settle for a few days.
(viii) Install aeration systems or water fountains if necessary.
(ix) Check for any leaks or issues and make necessary adjustments.
(x) Add appropriate fish species and ensure regular maintenance.

(2bi)
(PICK ANY THREE)
(i) Clear the pond of debris, weeds, and any obstacles.
(ii) Level and shape the pond to ensure proper water distribution.
(iii) Fill the pond with water, ensuring a steady supply.
(iv) Test the water for quality, including pH, temperature, and oxygen levels.
(v) Apply lime to adjust pH levels if necessary.
(vi) Fertilize the pond to stimulate plankton growth for fish feed.
(vii) Install proper inlet and outlet systems for water flow and drainage.
(viii) Ensure the pond is free of predators and harmful organisms.
(ix) Allow the pond to settle for a few days before introducing fish.
(x) Stock the pond with appropriate fish species for the environment.

(2bii)
(PICK ANY FOUR)
(i) Agricultural lime (calcium carbonate)
(ii) Quicklime (calcium oxide)
(iii) Hydrated lime (calcium hydroxide)
(iv) Dolomitic lime (calcium magnesium carbonate)
(v) Burnt lime
(vi) Slaked lime

(2c)
(PICK ANY FOUR)
(i) Reduces light penetration, affecting the growth of aquatic plants and plankton.
(ii) Decreases oxygen levels in the water, which can stress fish.
(iii) Impairs fish feeding behavior, as they rely on clear water to locate food.
(iv) Increases the risk of disease by limiting water quality and increasing pathogens.
(v) Causes sedimentation, which can clog gills and harm fish.
(vi) Reduces the overall aesthetic and environmental quality of the pond.

(2d)
(PICK ANY FOUR)
(i) Provide a balanced and nutritious diet to promote health and reproductive performance.
(ii) Ensure proper water quality, including maintaining appropriate temperature, pH, and oxygen levels.
(iii) Regularly check for diseases and parasites, and treat them promptly.
(iv) Maintain a proper breeding environment, including suitable breeding tanks or ponds.
(ii) Perform periodic health checks and remove any sick or weak fish.
(vi) Rotate or rest broodstock periodically to prevent overuse and ensure continued fertility.
(vii) Provide ample space for movement and reduce stress by avoiding overcrowding.
(viii) Manage breeding cycles to ensure the right timing for reproduction.

*WAEC FISHERIES*

*NUMBER FOUR*

(4a)
(PICK ANY FIVE)
(i) Foul or unpleasant odor
(ii) Murky or discolored water
(iii) High mortality rate in fish
(iv) Presence of algae blooms
(v) Low dissolved oxygen levels
(vi) Unusual fish behavior

(4b)
(PICK ANY FOUR)
(i) Regular water change
(ii) Proper pond aeration
(iii) Avoid overfeeding
(iv) Proper waste management
(v) Use of water testing kits
(vi) Liming to stabilize pH
(vii) Filtration systems
(viii) Avoiding overcrowding of fish

(4ci)
(PICK ANY THREE)
(i) Algae
(ii) Insects
(iii) Worms
(iv) Plankton
(v) Detritus
(vi) Aquatic plants

(4cii)
(PICK ANY THREE)
(i) Pellets
(ii) Crumbles
(iii) Mash
(iv) Flakes
(v) Dough
(vi) Extruded feed

(4di)
(PICK ANY THREE)
(i) Broadcasting
(ii) Tray feeding
(iii) Hand feeding
(iv) Automated feeding
(v) Demand feeding
(vi) Feeding rings

(4dii)
35% to 45%

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