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