Observation

In part (a), majority of the candidates were not able to name two types of fisheries. However, they were able to state three roles of fisheries in the national economy.

In part (b), majority of the candidates were not able to describe fin fishes and crustaceans.

In part (c), majority of the candidates were able to state three fish species found in fresh water, brackish water and marine.

The expected answers include:

(a)       (i)        Types of fisheries

-           aquaculture / fish farming
-           capture fisheries

                                                                                                           
(ii)       Roles of fisheries to the national economy

-           source of food
-           source of income
-           source of employment
-           source of foreign exchange
-           source of industrial raw material
-           for research purposes
-           for medicinal purposes
-           for tourism
-           for recreational purpose/sport fishing

(b)       Description of features of:
(i)        Fin fishes

-           body divided into head, trunk and tail
-           has fins
-           presence of operculum / gill slits
-           body covered with scale or smooth
-           have a pair of nostrils
-           eye covered with membranous materials
-           presence of lateral line
-           body is streamlined
                                                                                               
(ii)       Crustaceans

-           body divided into head and abdomen
-           have jointed appendages/segmented
-           presence of antennae
-           body covered with hard exoskeleton / shell / carapace
-           presence of pair of stalked eyes
-           have pincers
                                                                                   
(c)       Fish species found in aquatic habitats

            (i)        Freshwater

-           Tilapia
-           Clarias
-           Heterobranchus
-           Chrysichthys
-           Heterotis
-           Lates
-           Bagrus
-           Synodontis

(ii)       Brackish water

-           Crabs
-           Shrimps/ Prawn
-           Grey Mullet
-           Tilapia
-           Eel

(iii)      Marine
  -           Sardinella
-           Anchovy
-           Shark
-           Sea Bream
-           Mackerel
-           Cassava Fish/ Croaker
-           Tuna
-           Periwinkle
-           Star Fish
-           Ray
-           Crab