Fish production refers to output from both capture fisheries and aquaculture. Fisheries are places where fish are reared commercially. Aquaculture is the farming of aquatic organisms under controlled conditions. Fishing can be done in both marine fisheries along India's 7,500 km coastline and deep seas, as well as inland fisheries like rivers, reservoirs, and brackish waters. A problem with composite fish culture is ensuring a consistent supply of high quality seed, but this issue is now being addressed through hormonal stimulation to breed fish in ponds.