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