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