Very Short Question and Answers - Animal Husbandry - Fish Production

Fish are obtained through capture fishing from natural resources and through culture fishery via fish farming.

Capture fishing refers to obtaining fish from natural water bodies.

Culture fishery, or fish farming, is the practice of raising fish in controlled environments.

The two main types of water sources for fish production are seawater and freshwater.

Popular marine fish varieties in India include pomfret, mackerel, tuna, sardines, and Bombay duck.

Fish yields are increased by locating large schools of fish using satellites and echo-sounders.

Mariculture is the practice of farming marine fish and shellfish in seawater.

Examples of shellfish include prawns, mussels, and oysters.

Inland fisheries are found in freshwater resources like canals, ponds, reservoirs, and rivers.

Aquaculture is the practice of farming aquatic organisms, including fish, in controlled environments.

Fish can be grown in the water of paddy fields, allowing for simultaneous cultivation of rice and fish.

Composite fish culture is a system where multiple fish species with different feeding habits are raised together in a single pond.

Different fish species do not compete for food because they have varying feeding habits; some feed at the surface, others in the middle or at the bottom.

Many fish species breed only during the monsoon, leading to challenges in obtaining good-quality fish seed.

Hormonal stimulation has enabled the breeding of fish in ponds, ensuring the supply of pure fish seed in desired quantities.

Estuaries and lagoons serve as important brackish water resources that can support fish production.

Pearl cultivation is significant as oysters are farmed not only for meat but also for the pearls they produce.

The main challenge is the mixing of fish seed from different species when collected from the wild.

Two common freshwater fish species used in composite fish culture are Catla and Rohu.

The depletion of marine fish stocks increases the demand for fish, which can be met through culture fisheries or mariculture.