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