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