A) Temperature and dissolved oxygen B) All of the mentioned C) Dissolved oxygen and nutrients D) Temperature and nutrients
A) Overcrowding in fish ponds leads to predation and death B) High pH enables fish to grow faster C) All fish populations acclimatize to high salinity 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) Repairing of leakages B) Impounding of water C) Construction of spill way D) Construction of monk
A) Allow entry of fresh water B) Pollution of water C) Allow good flow of water D) Prevent blockage of outflow pipe
A) Acclimatization B) Fertilization C) Preservation D) Conservation
A) Brood pair B) Brood breeder C) Brood selection D) Broodstock
A) Mammals B) Angel sharks C) Ovoviviparous fish D) Viviparous fish
A) Internal fertilization B) External fertilization C) Natural reproduction D) Artificial reproduction
A) At the back muscle just below the lateral line B) In the pituitary gland C) Into the peritoneal cavity D) At the tail
A) Brownish B) Greenish C) Whitish D) Yellowish
A) Five B) Six C) Two D) One
A) Fertilization B) Artificial breeding C) Ovulation D) Sperm collation
A) Hormone Chloro Gonadotrophin B) Human Chorionic Gonadotropin C) Hormonal Condition Gland D) Hormone Chorionic Gonadotropin
A) Sperm B) Semen C) Milt D) Testes
A) Infected species B) Quarantine new fish C) Water pollution D) Pathogens
A) Dropsy B) Malawi bloat C) Fin rot D) Cotton wool diseases
A) Maintaining good water quality B) Emaciation and hollow belly C) Quarantine D) Decontamination of the pond
A) Ovoviviparous fishes B) Lemon sharks C) Surf perches D) Viviparous fishes
A) Fry B) Fish seed C) Hatchling D) Fingerlings |