NECO 2019 FISHERIES Obj And Essays Answer Now Available

*FISHERY OBJ*
1-10 ADCBAAACDA
11-20 BBDDCADABB
21-30 BCDAAADDBD
31-40 DCDCADBABB
41-50 CCCCBAAAAD
51-60 ADBDDDCCBA

*FISHERIES*

(3ai)
*Carnivores:*
A carnivore, meaning “meat eater”, is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue, whether through predation or scavenging.

(ii)
*Herbivores:*
A herbivore is an animal that gets its energy from eating plants, and only plants. Omnivores can also eat parts of plants, but generally only the fruits and vegetables produced by fruit-bearing plants. Many herbivores have special digestive systems that let them digest all kinds of plants, including grasses.

(iii)
*Grazers:*
A grazer is an animal, usually a herbivorous mammal, which eats grass. It is contrasted with browsers, which eat trees & shrubs.

(b)
•Vitamins
•Minerals
•Protein
•Carbohydrates
•Fats

(ci)

(cii)
• 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: The fish must be able to co-exist with other fish species i.e. polyculture

•Acceptance of artificial feed: The fish must be able to accept man made or compounded feed

• Acceptability to consumers/marketability: The fish must be marketable and accepted by the target consumers

• Breeding under captivity: The fish must be able to reproduce or be induced in artificial Environment

• Tolerance to poor water: The fish must be able to grow and thrive under poor water Conditions

• Fast growth: The fish must have good growth rate and reach market size within a short time/High feed conversion efficiency

• Disease resistance: The fish must be able to withstand a wide range of fish diseases

(ciii)
Mariculture is a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products in the open ocean, an enclosed section of the ocean, or in tanks, ponds or raceways which are filled with seawater.

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