A) Dissolved oxygen B) Temperature C) Respiration D) Photosynthesis
A) Respiration B) Decomposition C) Eutrophication D) Ration
A) Fertilizers B) Fish feed C) Fish waste D) Clay particles
A) 2ppm B) 18F C) 70% D) 20g/l
A) Carbonate ion B) Hydrogen ion C) Bicarbonate ion D) Hydroxyl ion
A) Build up of carbondioxied B) Lethal increase in pH C) Need of buffering system D) Absence of photosynthesis
A) Turbidity and pH B) Temperature and dissolved oxygen C) Alkalinity and hardness D) Photosynthesis and respiration
A) Sugar cane bagass B) Soya bean cake C) Rice molass D) Biological covers
A) Plankton B) Benthos C) Detritus D) Necton
A) 3mlphytoplankton/ 100l of pond water B) 110% saturated total ammonia C) 20ppm hardness D) A water transparency of 60cm
A) Natural food B) Supplementary feed C) Fish D) Complete feed
A) 50% B) 30% C) 10% D) 15%
A) Improve nutrient loss by leaching B) Reduce dissolved oxygen consumption of fish C) Discourage uniformity in fish size D) Encourage food wastage
A) Neither B) On entire pond area C) Either D) At selected pond area
A) 25% B) 1:2:4 C) 1:2:1 D) 0.5 difference
A) 25% B) 4% C) 70% D) 50%
A) Avoiding soil erosion B) Disallowing run off into the fish pond C) High water holding capacity D) Good water drainage
A) Microbial degradation B) Absence of buffer system C) Supplementary feeding D) Adequate photosynthesis
A) Parts per million B) Centimetre C) Milligram per litre D) Percentage saturation
A) 60cm B) 110% C) 5ppm D) 20mg/l
A) Recirculatory pond B) Earthen pond C) Plastic pond D) Concrete pond
A) Concrete pond B) Recirculatory pond C) Earthen point D) Plastic pond
A) The number of lives it can support B) The interaction of lives with the non living environment C) The nutrient content D) The types of lives present in it
A) Ration B) Forage C) Fish feed D) Compost
A) They are life and dead foods B) Examples are larvae and water lettus C) They can be initiated through decomposition D) The are formulated/prepared
A) Necton B) Detritus C) Benthos D) Plankton
A) The type and the amount B) The behaviour and the number C) The nutrient and the size D) The species and the habitat
A) Groundnut cake B) Fish meal C) Rumen content D) Wheat middling
A) Wastage B) Sinking ability C) Disatisfaction 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 |