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