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Waec fisheries practical Question and Answer 2021

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waec expo 2021

Waec fisheries practical Question and Answer 2021

 

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(1a)
(i) they have both have two eyes
(ii) they both have mouth
(iii) they both have spiny fins
(iv) they both have gills
(v) they both have a tail fin

(1b)
Tabulate
-Specimen A-
(i) it has barbels
(ii) it does not have scales
(iii) it has a big head compared to the body size
(iv) it has a continuous lateral line
(v) the dorsal fin is rayed

-Specimen B-
(i) it does not have barbels
(ii) it has scales
(iii) it has a small head compared to the body size
(iv) it has discontinuous lateral lines
(v) the dorsal fin is spiny

(1c)
(i) relatively high fecundity
(ii) ability for artificial spawning
(iii) adaptability to earthen ponds for culture
(iv) high tolerance to low dissolved oxygen
(v) relatively high resistance against infectious diseases

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(2ai)
-Passive Fishing Gears-
(i) Specimen D
(ii) Specimen E

-Active Fishing Gears-
(i) Specimen C
(ii) Specimen F

(2aii)
(i) Specimen listed as Passive gears are stationary gears that are not moved while active gears are moved or thrown.
(ii) Using passive gears, the capture of fish is generally based on the movement of the target species towards the gear while with active gears capture is generally based on an aimed chase of the target species.

(2b)
Specimen C catches more number of fishes than specimen F

(2ci)
Specimen C
(i) Net (ropes)
(ii) Floats

Specimen E
(i) Hook
(ii) Line

(2cii)
(i) Wash and dry specimen F after use
(ii) Repair torn parts before using

(2d)
(i) Steel rod
(ii) Welded mesh

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(3a)
(i)Fish Grading
(ii)Fish Scale Removing
(iii)Fish Cleaning
(iv)Fish Cutting
(v)Slime Removal
(vi)Fish Smoking

(3b)
(i) Slicing cheese
(ii) Cutting small citrus
(iii) Cutting meat
(iv) Slicing sandwiches

(3c)
(i)Used as fuel and roasting
(ii)Use in smoking fish as food

(3d)
(i)used for clothing
(ii)used for dressing wounds
(iii)used for medical purposes
(iv)used in Making cotton

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(4a)
(i)by Canning
(ii)by Frying
(iii)by Freezing

(4b)
(i)it is used in sea fishing
(ii)it is used in freshwater fishing
(iii)it is used in breeding

(4c)
-specimen M-
(i)It can suspend the bait at a predetermined depth

-specimen N-
(i)Lead fishing sinker is a weight used to force a lure or bait to sink sometimes to the bottom of the waterway

(4di)
(i)Drag out canoes
(ii)Flat bottom canoes
(iii)Motorised canoes

(4dii)
(i)Patches
(ii)Shoe goo or Marine Goop
(iii)Small hardware
(iv)Fibreglass and Sandpaper

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Completed.

2021 Waec Expo WAEC 2021 fisheries practical Questions and Answers
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