Question

What is pisciculture?
(a) Putting cattle to farm work
(b) Activities undertaken to save pandas from extinction
(c) Bringing up lions in a zoo
(d) Production of fishes

Answer 1

Hint: The animals cultured in this method have high-quality protein. They are also rich in vitamins such as D and B2 (riboflavin) and omega-3 fatty acids and some minerals like iron, zinc, etc.

Complete answer:
A pisciculture is a major form of aquaculture. Fish breeding, rearing, and transplantation by artificial means are the processes included in the pisciculture. This involves the commercial rearing of fish, usually for food, in tanks or enclosures. Fish is rich in calcium and phosphorus and is a great source of minerals such as iron, zinc, iodine, magnesium, potassium, and others.
Types of fish brought up by fish farms include salmon, catfish, tilapia, and cod.
Aquaculture includes the rearing of mollusks, fish, crustaceans, algae, and aquatic plants, both freshwater and saltwater species.
Pisciculture involves the following steps.
- Collection of eggs: Necessary types of fish eggs are collected from rivers or other water bodies during monsoon months. After fertilization, the eggs are collected for twelve to fourteen hours and allowed to hatch under protected conditions.
- Collection of seeds: Seed of fish means the collection of young ones from the breeding pools or natural sources. The fish seeds are of two categories such as fry and fingerlings. Fries are just hatched fish whilst fingerlings are not much older than fries.
- Nursery pond: The fries that are transported to nursery ponds are very fragile and should be maintained with care. Since there is a possibility of high mortality rates during transport it is advisable to have nursery ponds as close to hatcheries as possible.
- Rearing ponds: They should be moved to larger ponds for two reasons after the fish fries have grown to a sufficient size. 1. As the size of the fish increases, they should have free mobility without any hindrance in water. 2. Large bodies of water such as the rearing pond will have higher amounts of food resources needed for fish.
- Stocking ponds: The fingerlings in rearing ponds that have reached the maximum size are moved to storage ponds in 1000 liter capacity containers. Specifically, these containers are designed to avoid injury to young fish.
So, the correct answer is, ‘Production of fishes’.

Note: Pisciculture is the regulated rearing and breeding of fish. The fish are reared in enclosures such as cages, open nets, tanks, and ponds, and they are raised here. Polyculture, monoculture, monosex culture are the various forms of fish farming. Polyculture is also known as composite fish culture or mixed fish farming, which involves the cultivation of an association of fish together. Only one species of fish is cultivated in monoculture in a pond or rice field. Monosex cultivation is a type of fish farming in which the only one of the sexes, males or females are grown in the pond to produce the maximum yield of the fish.