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