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Waec 2017 Fisheries Answers – May/June Expo

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CONFIRMED FISHERIES QUESTIONS 2017

1a) Describe six activities involved in earthen pond construction.
1b)Explain four pond maintenance activities.
2a) State the optimum ranges for three water parameters in a fish pond.
(2b)Name three energy yielding and three protein yielding ingredients in fish feeds.

3ci) Definethe term feeding frequency.
3cii) Describe three feeding methods in aquaculture.
4ai) Mentionthree components of a fish pond.
(ii) State one function of each of the components mentioned in 2(a) (i) above.
4bi) Distinguish between polyculture and
monoculture .

(ii) Describe any two management systems in aquaculture.

5ai) What is culture fisheries?
(ii) Explain five attributes of a culturable fish species.
(b) Mention three fish culture facilities.
(c) List three types of fish ponds.
(d) State two methods of lime applicationin a fish pond.

WAEC FISHERY ANSWERS Essay
1a)
specimen A is greenish in colour due to the presence of algae while specimen is colourless
1b)
the green colour observed is specimen A is due to presence of planktonic algae which is absent in specimen B
1c)
specimen B is more suitable for table fish
1di)
the presence of planktonic algae will deplete valuable from getting to the water
1dii)
specimen B contains harmful algae blooms,bacterial, and virus which can kill the fishes.
1e)
i)by attacking the food source of the algae to reduce its breading
ii)by treating the water to be used for the table fish before using it
iii)by filtering the water before use.
iv)by sterilizing the water
v)by the use of herbicides to kill the algae
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2bi)
-Handle
-Hook keeper
2bii)
-Throw line
-Loop
2c)
i)Rinse your cast nets with fresh water and hang until your entire net is completely dry, do not use any soap, detergents or chemicals to clean your cast nets.
ii)For your drying period, dr@pe your net over something or hang it up slightly but “do not” hang the net up completely so that the weights leave the ground.
iii)Never store your net wet, when moisture and fish slime mix together for any length of time, ammonia settles in and you’ll be amazed at how quickly your cast net will disintegrate if you store your bucket unrinsed and wet.
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4a)
Uses of mattock
i)a mattock is a versatile hand tool, used for digging and chopping grounds for pond construction.
Uses of shovel
i)a shovel is a tool for digging, lifting, and moving bulk materials, such as soil, coal, gravel, snow, sand, or ore for d construction of fishponds
4b)
-Digging blade
-Chain saw
-Flat boat
-Plumbing tools

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