A) Respiration B) Photosynthesis C) Dissolved oxygen D) Temperature
A) Respiration B) Ration C) Eutrophication D) Decomposition
A) Clay particles B) Fertilizers C) Fish feed D) Fish waste
A) 20g/l B) 2ppm C) 18F D) 70%
A) Bicarbonate ion B) Carbonate ion C) Hydrogen ion D) Hydroxyl ion
A) Need of buffering system B) Lethal increase in pH C) Absence of photosynthesis D) Build up of carbondioxied
A) Alkalinity and hardness B) Turbidity and pH C) Temperature and dissolved oxygen D) Photosynthesis and respiration
A) Rice molass B) Soya bean cake C) Biological covers D) Sugar cane bagass
A) Detritus B) Plankton C) Necton D) Benthos
A) 110% saturated total ammonia B) 20ppm hardness C) 3mlphytoplankton/ 100l of pond water D) A water transparency of 60cm
A) Complete feed B) Natural food C) Fish D) Supplementary feed
A) 30% B) 10% C) 50% D) 15%
A) Reduce dissolved oxygen consumption of fish B) Encourage food wastage C) Discourage uniformity in fish size D) Improve nutrient loss by leaching
A) Either B) On entire pond area C) Neither D) At selected pond area
A) 25% B) 0.5 difference C) 1:2:4 D) 1:2:1
A) 4% B) 50% C) 70% D) 25%
A) Avoiding soil erosion B) Disallowing run off into the fish pond C) Good water drainage D) High water holding capacity
A) Fencing of pond area B) Detailed survey of site C) Fast growing species D) Nearness to market
A) 7.5cm-5cm B) 7.5-10cm and 5cm C) 5cm and 7.5cm D) 5cm and 7.5-10cm
A) Ditch B) Dam C) Spillway D) Monk
A) Clarias gariepinus B) Gymnarchus niloticus C) Chrysichthys nigrodigitatus D) Tilapia niloticus
A) Supplementary feeding B) Adequate photosynthesis C) Microbial degradation D) Absence of buffer system
A) Centimetre B) Percentage saturation C) Milligram per litre D) Parts per million
A) 5ppm B) 60cm C) 110% D) 20mg/l
A) Earthen pond B) Concrete pond C) Plastic pond D) Recirculatory pond
A) Recirculatory pond B) Concrete pond C) Earthen point D) Plastic pond
A) The interaction of lives with the non living environment B) The types of lives present in it C) The nutrient content D) The number of lives it can support
A) Compost B) Ration C) Fish feed D) Forage
A) They are life and dead foods B) Examples are larvae and water lettus C) The are formulated/prepared D) They can be initiated through decomposition
A) Plankton B) Benthos C) Detritus D) Necton
A) The nutrient and the size B) The species and the habitat C) The type and the amount D) The behaviour and the number
A) Groundnut cake B) Rumen content C) Wheat middling D) Fish meal
A) Wastage B) Sinking ability C) Disatisfaction D) Floating ability
A) Feeding fish with certain mass of its body weight B) Feeding fish to compensate for over stocking C) Feeding fish with certain mass to achieve a known body weight D) Feeding fish with certain mass for a period of time
A) Water temperature B) Natural food C) Stocking rate D) None
A) Phytoplankton B) Zooplankton C) Artificial feed D) Natural food
A) Pellet B) Mill C) Mash D) Syrup
A) Aquatic habitat turns land habitat B) It smothers fish eggs C) Beneficial bacteria are killed D) It increases light penetration
A) Cytoplasm B) Mitochondrion C) Ribosome D) Chroloplast
A) Fish metabolism B) Water temperature C) Fish size D) None
A) 2.5ppm B) 1.3ppm C) 1.5ppm D) 2.3ppm
A) 6.5-9 B) 9-10.5 C) 4-6.5 D) 6-8
A) Concrete B) Earthen C) Excavated D) Embarkment
A) 1000 B) 500 C) 750 D) 250
A) Stream B) Bore hole C) Lake D) Well
A) Dike B) Core trench C) Reservoir D) Dam
A) Ditch B) Spill way C) Out let D) In let
A) Water retention B) Regulation of pH C) Enriching the pond D) Sealing of leakage
A) Draining-impoundment-liming-stocking B) Draining-checking cracks-liming-fertilization C) Draining- fertilization-liming-impoundment D) Removing silt-checking cracks-liming-fertilization
A) Spillway B) Trench C) Dike D) Dam
A) 3% B) 4.5% C) 2% D) 5% |