Question

Write a short note on marine and composite fisheries,

Answer 1

Marine fishery: It is the practice of catching fishes in ocean. Mostly marine fisheries are practiced near the coast. This is because harvesting is easier in shallow water depth and also fishes are mostly abundant near the coastal areas as nutrients are abundant there.

Composite fish culture is a system in which both local and imported fishes are cultured in the same water body. Five or six species of fishes can be grown together in this system. the species are selected in such a way that they do not compete with each other and as well as all the food resources of the pond can be sustainably used. Fishes used in this system are catla, rohu, silver carp, common carp etc.