A) All of the mentioned B) Temperature and dissolved oxygen C) Dissolved oxygen and nutrients D) Temperature and nutrients
A) Overcrowding in fish ponds leads to predation and death B) All fish populations acclimatize to high salinity C) High pH enables fish to grow faster D) Turbidity has no effect on fish population
A) Poor feeding frequency B) Availability of live food C) Inadequate feeding rate D) Poor water quality
A) Construction of monk B) Construction of spill way C) Impounding of water D) Repairing of leakages
A) Allow entry of fresh water B) Pollution of water C) Prevent blockage of outflow pipe D) Allow good flow of water
A) Acclimatization B) Fertilization C) Preservation D) Conservation
A) Brood selection B) Brood pair C) Broodstock D) Brood breeder
A) Mammals B) Viviparous fish C) Angel sharks D) Ovoviviparous fish
A) External fertilization B) Internal fertilization C) Artificial reproduction D) Natural reproduction
A) At the back muscle just below the lateral line B) At the tail C) Into the peritoneal cavity D) In the pituitary gland
A) Greenish B) Yellowish C) Brownish D) Whitish
A) Five B) One C) Six D) Two
A) Sperm collation B) Ovulation C) Fertilization D) Artificial breeding
A) Hormone Chorionic Gonadotropin B) Hormone Chloro Gonadotrophin C) Human Chorionic Gonadotropin D) Hormonal Condition Gland
A) Testes B) Sperm C) Semen D) Milt
A) Water pollution B) Infected species C) Pathogens D) Quarantine new fish
A) Cotton wool diseases B) Fin rot C) Dropsy D) Malawi bloat
A) Quarantine B) Decontamination of the pond C) Maintaining good water quality D) Emaciation and hollow belly
A) Ovoviviparous fishes B) Viviparous fishes C) Lemon sharks D) Surf perches
A) Fry B) Hatchling C) Fish seed D) Fingerlings |