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