Observation

 

The question was well attempted, and candidates performance was average.
In part (a), majority of the candidates were able to name the parts of specimen K. however, they were unable to state the differences between specimens K and L.

In part (b), only few candidates could state the disadvantages of using specimen L.

In part (d), majority of the candidates could not mention any other five by-products that could be derived from fish apart from specimen J. Majority of the candidates were mentioning the uses of fish instead of by-products.

The expected answers include:

(a)(i) Parts of specimen K (Gill net)
- head rope/line/float line
- float/bouy/floater
- netting material/net
- foot rope/leadline/weight line
- sinker / lead / stone/weight
- twine

(ii)Functions of the parts
Head rope – for holding the top part of the netting material
Float/floater/bouy- for keeping net suspended in water/an indicator that fish has been caught
Netting material – for trapping fish in water
Foot rope – for holding the bottom part of the netting material
Sinker / lead / stone/weight – to stretch net down to touch bottom

(iii)Difference between specimen K (gill net) and specimen L (Cast net)

Gill net	Cast net
- Not much skill is required/easy/ not complex to construct	Skill is required/not easy/ Complex to construct
- Complex/not difficult to use	Not complex/difficult to use
Passive gear	Active gear
Not much skill is required	Requires great skill
Placed vertically in water	Cast or thrown into the water
Presence of head rope	Absence/ No head rope
Presence of float	Absence/No float
Rectangular shape	Conical shape
Can be operated in all waterbodies	Can only be operated in shallow waters
Selective/capture fish of uniform sizes/target fish	Non selective/capture fish of various sizes

(b) Disadvantages of using specimen L (cast net)
- requires high skill to operate
- it is not selective/captures cell sizes
- not very efficient
- suitable only in shallow waters/not suitable in deep water
- could get stacked in woody vegetation/debris/rocky bottom.