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