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Question 1
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QUESTION 1
(a)(i) What is culture fisheries? [2 marks]
(ii) Explain five attributes of a culturable fish species. [10 marks]
(b) Mention three fish culture facilities. [3 marks]
(c) List three types of fish ponds. [3 marks]
(d) State two methods of lime application in a fish pond. [2 marks] |
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This question was poorly attempted by the candidates. In 1(a)(i – ii), majority of the candidates could neither define culture fisheries not explain the attributes of a culturable fish species. However in 1(b), most of them were able to mention fish culture facilities.
Further to this, in 1(c-d), majority of the candidates could neither list the types of fish ponds nor state the methods of lime application in a fish pond.
The expected answers include:
1 (a) (i) Meaning of culture fisheries
Fish culture is the production/rearing/domestication of aquatic organisms in a
Controlled/confined environment
OR
Fish production under artificial environment
(ii) Explanation of attributes of a culturable fish species
- Hardiness: the fish must be hardy, must be able to withstand handling conditions/adaptive
- High survival rate: large number/percentage must survive in captivity
- Compatibility: must be able to co-exist with other fish species i.e. polyculture
- Acceptance of artificial feed: must be able to accept man made or compounded feed
- Acceptability to consumers/marketability: must be marketable and accepted by the target consumers
- Breeding under captivity: must be able to reproduce or be induced in artificial Environment
- Tolerance to poor water: must be able to grow and thrive under poor water Conditions
- Fast growth: must have good growth rate and reach market size within a short time/High feed conversion efficiency
- Disease resistance: must be able to withstand a wide range of fish diseases
(c) Types of fish ponds
- Earthen pond
- Excavated ponds/dugout ponds
- Embankment ponds/contour/paddy ponds
- Hilly ponds/barrage/ravine ponds
- Concrete tank
- Plastic tank
- Fibre glass tank
- Wooden tank
- Tarpaulin tank
(d) Methods of lime application in a fish pond
- Broadcasting directly into the pond water surface
- Broadcasting directly on pond bottom/dams side |
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