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