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