Give THREE (3) criteria for food source that is suitable for the fish fries.
easily digestible, contains enzymes systems which allow autolysis, supplies all the essential nutrients
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15
Why Daphnia is not suitable for marine fish species?
Freshwater species, Low content of essential fatty acids, Low HUFA
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thief
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shark
Other team loses 25 points!
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shark
Other team loses 20 points!
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thief
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15
Why fish hatchery needs live feed?
Larval rearing success largely depends on fish larvae feeding
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20
Give TWO (2) reasons why fish larvae won't eat pellet?
Small size (small mouth size), Uncompleted development of their perception organs (eyes, chemo receptors), Digestive systems. Cant produce enzyme for digesting
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10
Copepod produce eggs asexually.
No. Sexually.
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20
What is plankton?
the diverse collection of organisms that live in large bodies of water and are unable to swim against a current.
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25
Give THREE (3) characteristics of fish fries.
Delicate and small, Power of movement + ability to feed - weak, Their diet is restricted to a number of items, Very low adaptive to environment.
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20
Give TWO (2) disadvantages of live feed.
âĒ unreliable quality and quantity when obtained from the wild âĒ labour costs âĒ specialist skills required for culturing âĒ culture continuously
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10
Artemia is freshwater or seawater species?
seawater
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10
When fish larvae starts to eat? How many days old?
3 or 4-day-old
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10
What are live foods?
Able to swim in water column, Constantly available to fish and shellfish larvae, Likely to stimulate larval feeding response.
