There are two ways of obtaining fishes:

(a) Capture fishing it is the process of obtaining fish from natural resources like river, lake or seas. In this the yield depends upon the environmental condition and fish habitat.

(b) Culture fishery: it is the practice of farming fishes. Farming can be done in both freshwater ecosystem (which includes river water, pond water) and marine ecosystem. In this method the cultivation of selected fishes are carried out in confined areas with utmost care to get maximum yield.