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