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