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