Marine aquaculture is often defined as aquaculture in a marine environment. Some limit mariculture to the cultivation of marine animals and plants in the sea itself, while others include farming methods practiced in salt and brackish waters outside the ocean, including species from brackish waters. Browse to Marine aquaculture can be distinguished from capture fisheries on the basis of two criteria. Targeted interventions in inventory ownership and production cycles. Different Species Its capabilities (size, modularity, versatility, survivability, open ocean environment, etc.) allow the system to be deployed in any sea, thus enabling the natural breeding and rearing of a wide variety of fish and other marine aquaculture products. As India is her second most populous country, it suffers from hunger and hidden hunger. Marine aquaculture and edible algae serve as alternative energy sources. Marine aquaculture is an interdisciplinary topic that can be placed in environmental geography, economics, and energy resources. This is a question that is likely to arise in both the qualifying rounds and the main rounds. Marine aquaculture is a specialty of aquaculture that involves the cultivation of marine organisms for food and other products in open seas, closed waters, or tanks, ponds, or waterways filled with seawater. Examples of the latter include raising fins and crustaceans such as shrimp, and marine fish such as oysters and seaweed in saltwater ponds. Marine aquaculture has grown rapidly over the past two decades due to new technologies, improved feed formulas, a better understanding of the biology of farmed species, and improved water quality in closed aquaculture systems, increased demand for seafood, site expansion, and government interest. As a result, aquaculture has been the subject of some controversy regarding its social and environmental impacts. It should be supported by basic and applied research and development in the field. One approach is a closed system that does not directly interact with the local environment. However, capital and operating costs are currently considerably higher than open cages, limiting their current role as hatcheries. Many factors are conspiring to turn the $50 billion global marine aquaculture market into an important industry for developing countries. Currently, half of the fish consumed by humans worldwide is produced in fish farms. Sea harvesting is the fastest growing form of food production in the world. Many developing countries have huge coastlines. And seafood is an important source of protein for people in these countries. It will be difficult to regulate "takeless". But the call to “do more” promises a blue revolution in aquaculture as dramatic as the green revolution in agriculture that transformed food production in the 1960s and his 1970s. With marine life farming enhanced by 21st century genetic engineering, the Blue Revolution could relegate supercorn and soybeans to his 20th century records. The above factors create a “perfect storm” for the emergence of marine aquaculture in developing countries. Marine aquaculture, the farming of marine fish and marine plants, has advantages over traditional agriculture. The fish are raised in relatively controlled environments, making it easier to predict outcomes and harvest. It also facilitates harvesting and ensures consistent quality, reducing costs and increasing profits. Furthermore, if properly designed, marine aquaculture is sustainable for the restoration of marine habitats and fish stocks.