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