Q.Define estuary.

Fisheries is the industry built around catching, farming, processing and selling fish, shellfish and other aquatic animals such as prawns, crabs, lobsters and oysters. Common freshwater fishes eaten in India include Catla, Rohu and common carp, while popular marine fishes include Hilsa, sardines, mackerel and pomfret. Fisheries provide income and employment to millions of people, especially in coastal states, and for many are their only source of livelihood. To meet rising demand, farmers use pisciculture (controlled fish rearing) and aquaculture (broader cultivati …