2019/2020 FREE WAEC EXPO RUNZ: FISHERIES PRACTICAL QUESTIONS AND ANSWERS NOW AVAILABLE

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*WAEC FISHERY*

*SPECIMENS BELOW*
A=Fetilize
B=Cow dung
C= pond water
D=Litmus paper
E=Secchi disc
F=Feed pellets
G=Knife
H=fish meal
I=Fish box(labelled)
J=Fish Skin
K=gill net
L=Cast net

*(QUESTIONS ATTENDED*
*1,2,4 3)*

*COMPLETED*

(NUMBER 1)

(1ai)
Fertilizers used in ponds stimulate the growth of microscopic plants called algae or plankton

(1aii)

(i) Fertilizers are used in ponds to increase the production of the natural food organisms to be eaten by the fish.

(ii)When a fertilizer is added to a fish pond, the chemicals it contains dissolve in the water which have advantage over cow dung

(ii)The chemicals attached to soil particles may also later be released back into the water slowly, over a long period of time which have advantage over cow dung

(1aiii)
(i)Broadcasting/spraying method
(ii)Sac method/spot
(ii)Banding method

(1bi)
(i)groundwater
(ii)surface runoff
(iii)inflows

(1bii)
(pick only three)

(i)temperature
(ii)dissolved oxygen
(iii)alkalinity
(iv)ammonia
(v)nitrites

*(NUMBER 2)*

(2ai)
(i)
Specimen D:
It is used to determine the alkalinity of pond water

(ii)
Specimen E:
It is a valuable tool for monitoring certain parameters of your pond.

(ii)
Specimen F:
It serves as an important source of fish feed

(2aii)
PH meter

(2aiii)
Digram of SECCHI DISC

(2aiv)
(i)Lower specimen E into water slowly
(ii)slowly pull the disk up until you see it again
(iii)average the dept to the nearest half foot and mark on the cord
(iv)record the average depth on the data sheet along with date and time

(2bi)
(i)fiber
(ii)fat
(iii)protein

(2bii)
(i) It helps in Proper growth of finger ling’s
(ii) They contain Carbohydrates and fats which yield heat, which maintains body temperature, furnishes energy for growth and muscle activity

*(NUMBER 3)*

(3a)
Fish bag

(3b)
(i)
Making leather

(ii)
For burn relief
(iii) Fish gelatin obtain from fish skin can be used in the food, pharmaceutical, and photographic industries due to its unique chemical and physical properties

(3c)
(i)For cutting fishes like head cutting, cutting into steaks
(ii)For chopping of cartilages and tendons

(3d)
(i)Fish liver oil
(ii)Fish bone
(iii)Fish Manure
(iv)Fish Body oil
(v)Fish Silage

(3e)
(i)By washing properly
(ii)Sharpen the blade when blunt
(iii)Always cut on cutting boards

*(NUMBER 4)*

(4a)
(i)Wedged
(ii)Gilled
(iii)Tangled

(4aii)
(i)Wedged – held by the mesh around the body.
(ii)Gilled – held by mesh slipping behind the opercula.
(iii)Tangled – held by teeth, spines, maxillaries, or other protrusions without the body penetrating the mesh.

(4aiii)
Specimen K
(i)2-3cm
(ii)Low cost
(iii)It is selective in harvesting
(iv)It harvests mature fishes

Specimen L
(i)4-7m
(ii)High cost
(iii)It is not selective in harvesting
(iv)It harvests any fish

(4b)DISADVANTAGES OF SPECIMEN L:
(i)High cost
(ii)Time consuming

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