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