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