A) Absence of photosynthesis B) Lethal increase in pH C) Build up of carbondioxied D) Need of buffering system
A) Turbidity and pH B) Alkalinity and hardness C) Temperature and dissolved oxygen D) Photosynthesis and respiration
A) Soya bean cake B) Rice molass C) Biological covers D) Sugar cane bagass
A) Benthos B) Necton C) Plankton D) Detritus
A) 110% saturated total ammonia B) 20ppm hardness C) A water transparency of 60cm D) 3mlphytoplankton/ 100l of pond water
A) Fish B) Natural food C) Complete feed D) Supplementary feed
A) 50% B) 10% C) 15% D) 30%
A) Encourage food wastage B) Reduce dissolved oxygen consumption of fish C) Discourage uniformity in fish size D) Improve nutrient loss by leaching
A) On entire pond area B) Neither C) At selected pond area D) Either
A) 1:2:1 B) 25% C) 1:2:4 D) 0.5 difference
A) 70% B) 25% C) 50% D) 4%
A) Avoiding soil erosion B) Disallowing run off into the fish pond C) Good water drainage D) High water holding capacity
A) Fast growing species B) Fencing of pond area C) Detailed survey of site D) Nearness to market
A) 5cm and 7.5-10cm B) 5cm and 7.5cm C) 7.5-10cm and 5cm D) 7.5cm-5cm
A) Monk B) Ditch C) Spillway D) Dam
A) Earthen point B) Recirculatory pond C) Concrete pond D) Plastic pond
A) The nutrient content B) The interaction of lives with the non living environment C) The number of lives it can support D) The types of lives present in it
A) Compost B) Ration C) Forage D) Fish feed
A) They are life and dead foods B) The are formulated/prepared C) They can be initiated through decomposition D) Examples are larvae and water lettus
A) Plankton B) Necton C) Benthos D) Detritus
A) The behaviour and the number B) The type and the amount C) The nutrient and the size D) The species and the habitat
A) Wheat middling B) Groundnut cake C) Rumen content D) Fish meal
A) Wastage B) Sinking ability C) Floating ability D) Disatisfaction
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 for a period of time D) Feeding fish with certain mass of its body weight
A) Water temperature B) Stocking rate C) Natural food D) None
A) Natural food B) Zooplankton C) Phytoplankton D) Artificial feed
A) Mill B) Syrup C) Pellet D) Mash
A) It smothers fish eggs B) Beneficial bacteria are killed C) Aquatic habitat turns land habitat D) It increases light penetration
A) Mitochondrion B) Ribosome C) Cytoplasm D) Chroloplast
A) Fish metabolism B) None C) Water temperature D) Fish size |