Fish farms or fish farming is a process in aquaculture. The act of fish farming is about raising fish commercially in tanks or enclosures for human consumption. There are different types of fish farms that utilize different aquiculture methods.
The first method is irrigation ditch or pond systems for raising fish. This basic requirement for this method is to have a ditch or a pond that holds water. This is a unique system because at a small level, fish are artificially fed and the waste produced from the fish is used as fertilizer by farmers in fields. On a larger scale, mostly in ponds, this is self-sustaining as it grows plants and algae for fish food.
The second method is the cage system in which cages are placed in lakes, ponds or oceans. This method is also widely referred to as off-shore cultivation. Fishes are kept in the cage like structures and are “artificially fed” and harvested. Technically the cage fish farming method is advanced in reducing diseases and balancing environmental concerns. However, the number one concern of the cage method is fish escaping and being loose among the wild fish population.
‘Cage’ refers to the type of culturing units consisting of a framed net open at the top and floating on the surface, or when completely enclosed, the cage is kept below the water surface by adjustable buoyancy or suspending from the surface.
The increasing popularity of cage culture worldwide can be attributed to the following advantages:
The applicability of cage culture is extremely varied. Rivers, backwaters, reservoirs, lakes, strip-mine lakes, irrigation canals etc., are all suitable for culture without any alteration in their state or function.
The production in small units (cages) as well as their quick and simple harvest render the method capable both for flexible adaptation to the actual market demands and for continuous supply.
Cages are a convenient means of wintering, thus they save the vast investments for separate wintering ponds.
Due to the high stocking density of enclosures, the direct observation of fish and immediate intervention, if necessary, are possible.
Harvest is simple and quick, and the technological steps can be mechanized.
By producing seed for stocking natural waters in cages, building nursery ponds can be avoided.
An indirect advantage is that by utilizing existing natural waters, land areas for fish ponds can be used for other rural activities.
Cage culture can be well associated with sport fishing.
The in situ construction of cages is quick and simple, so both the location and dimension of cages are easy to change.
Aquaculture in Protected Cultivation
Fish Farming In Poly House
The method of fish farming is called integrated recycling systems which is considered the largest scale method of “pure” fish farming. This approach uses large plastic tanks that are placed inside a greenhouse. There are hydroponic beds that are placed near the plastic tanks. The water in the plastic tanks is circulated to the hydroponic beds, where the fish feed waste goes to provide nutrients to the plant crops that are grown in the hydroponic beds. The majority of types of plants that are grown in the hydroponic beds are herbs such as parsley and basil.
Shrimp Farming In Poly House
In the coastal states of India saltwater shrimp is being grown in a greenhouse as part of a project Promoted many Government Institute by ICAR, National Center For Sustainable Aquaculture, Central Institute of Brackish water Aquaculture, University College of Agriculture. The goal is to develop a seafood production system that is sustainable, scalable, and environmentally friendly.
The next big thing in urban farming is the cultivation of shrimp in the house. Coastal area Shrimp is grown in a sustainable greenhouse and indoor aquaculture systems. Over the past few years indoor shrimp farms are popping up between the coasts and in some of the most unlikely places. Many of these farms are a long, long way from the coast.
In fact, the South India Sea Coastal area is a hub of saltwater shrimp farming. Particularly, in agricultural communities and Other Local Organization. You’ll also find these operations exist in South states bordering the West Bengal, Tamil Nadu, Andhra Pradesh, Kerala. And most recently, perhaps the first urban shrimp farming business In Poly House.
Many of the growers doing saltwater shrimp farming indoors have found a new use for barns made vacant by changes in conventional agriculture. However, empty warehouses and factories in cities and towns across the country would work for saltwater shrimping too.