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) Poor feeding frequency B) Inadequate feeding rate C) Poor water quality D) Availability of live food
A) Construction of monk B) Construction of spill way C) Impounding of water D) Repairing of leakages
A) Allow entry of fresh water B) Allow good flow of water C) Pollution of water D) Prevent blockage of outflow pipe
A) Preservation B) Acclimatization C) Conservation D) Fertilization
A) Brood breeder B) Brood pair C) Broodstock D) Brood selection
A) Ovoviviparous fish B) Angel sharks C) Mammals D) Viviparous fish
A) Internal fertilization B) Natural reproduction C) External fertilization D) Artificial reproduction
A) Into the peritoneal cavity B) In the pituitary gland C) At the back muscle just below the lateral line D) At the tail
A) Yellowish B) Brownish C) Greenish D) Whitish
A) Two B) One C) Six D) Five
A) Sperm collation B) Ovulation C) Fertilization D) Artificial breeding
A) Hormonal Condition Gland B) Human Chorionic Gonadotropin C) Hormone Chorionic Gonadotropin D) Hormone Chloro Gonadotrophin
A) Testes B) Milt C) Semen D) Sperm
A) Infected species B) Water pollution C) Quarantine new fish D) Pathogens
A) Dropsy B) Fin rot C) Cotton wool diseases D) Malawi bloat
A) Emaciation and hollow belly B) Maintaining good water quality C) Quarantine D) Decontamination of the pond
A) Lemon sharks B) Surf perches C) Ovoviviparous fishes D) Viviparous fishes
A) Fry B) Fingerlings C) Fish seed D) Hatchling |