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