Indian prawn

The Indian prawn is a small sea animal. It lives on the sandy sea floor.

These prawns live in many warm lands. They live from Africa to China. They also live in Australia.

Young prawns start in the deep sea. Then they move to river mouths. They grow there before going back to the sea.

Many people catch them to eat. Farmers also grow them in big ponds. Some farmers even use rice fields to grow them.

People can harvest them by draining the ponds. This makes them easy to collect. These prawns are a very important food for the world.

The Indian prawn is a small animal that lives in the sea. It likes to stay on sandy or muddy floors.

These prawns live in many warm places. They are found from Africa to China and Australia. People catch them in the ocean to eat. Many countries like India and Vietnam catch them.

Farmers also grow them in ponds. This is called aquaculture, which means farming in water. Some farmers use old rice fields to grow them. They wait for the rain to end before they start.

There are three main ways to farm them. The first way is simple and uses natural food. The second way uses more care and extra food. The third way is very busy. In this way, farmers use machines and give food many times a day. This helps them grow more prawns in small ponds.

To harvest the prawns, farmers often drain the water. This leaves the prawns in the empty pond. Then, people can pick them up by hand. These prawns are a very important food for many people.

The Indian prawn is a very important animal for people to eat. It is a marine decapod, which means it is a sea creature with ten legs. You might know it by many other names, like the white prawn or the banana prawn. These prawns live in warm waters across the Indo-West Pacific. They can be found from Africa to India and Indonesia. They even live as far as southern China and northern Australia.

These prawns have a very interesting way of growing up. They start their lives as tiny swimming creatures called nauplii in the open sea. As they grow, they change into stages called protozoea and mysis. Eventually, they become postlarvae, which look much more like adult prawns. These young prawns move into estuaries, which are areas where river water meets the sea. They eat and grow there until they are about 110 to 120 mm long. Then, the sub-adults swim back out into the deep ocean.

People have been finding and using these prawns for a long time. Scientists like Henri Milne-Edwards described them back in 1837. Today, many countries work hard to catch them or farm them. China, India, Indonesia, Vietnam, and Thailand are big leaders in catching them from the wild. Other countries like Saudi Arabia and Iran are very good at farming them in ponds. In 2005, Saudi Arabia was a top producer, making nearly 11,300 tonnes.

Farmers use aquaculture, or water farming, to grow these prawns. There are three main ways they do this. The first is extensive farming, which uses natural food in big areas. In India, farmers even use rice paddy fields after the monsoon rains. The second way is semi-intensive, using smaller ponds and extra food. The third way is intensive, which is a very busy and controlled system. In intensive farms, they use machines and feed the prawns many times every day.

Even though these prawns are helpful, there are some things to watch for. In 2010, Greenpeace International put them on a seafood red list. This is not because the prawns are in danger of disappearing. Instead, the tools used to catch them can accidentally catch other animals. This includes endangered species like sea turtles, which is called bycatch. It is important to find ways to catch food without hurting other sea life.

The Indian prawn, known scientifically as Fenneropenaeus indicus, is a major commercial species of crustacean. It is a marine decapod, which means it is a sea creature with ten legs. This species is highly valued for human consumption across the globe. It plays a significant role in both wild fisheries and the aquaculture industry. Many people know it by different common names. These include the white prawn, the banana prawn, and the red leg banana prawn.

The life cycle of the Indian prawn involves several distinct developmental stages. It begins in the open sea after hatching as free-swimming nauplii. These tiny organisms then progress through the protozoea and mysis stages. Eventually, they reach the postlarval stage, which looks much more like an adult. These postlarvae migrate into estuaries, which are areas where river water meets the sea. They feed and grow in these sheltered waters until they reach a length of 110 to 120 mm. Once they become sub-adults, they return to the sea to complete their life cycle.

Farmers use aquaculture, or water farming, to raise these prawns for food. There are three primary methods of production: extensive, semi-intensive, and intensive. Extensive farming is a traditional method that relies on natural foods. In India, farmers sometimes use 'pokkali' rice paddy fields for this purpose after the monsoon season. Semi-intensive farming uses smaller ponds that are deeper, usually between 1.0 and 1.5 meters. This method uses hatchery-derived seeds and provides supplementary feed several times a day. Intensive farming is a highly controlled and mechanized system. It uses very high stocking densities of 50 to 100 postlarvae per square meter.

To start a farm, producers must secure a steady supply of seeds. These seeds can be collected from the wild or produced in hatcheries. In traditional systems, juveniles enter fields through sluice gates during high tide. However, many modern farmers now rely on hatcheries to reduce dependence on wild seeds. Hatcheries require broodstock, which are adult prawns used for breeding. Spawners can be collected from the wild during peak seasons in March, April, July, or August. In some hatcheries, scientists use a technique called eyestalk ablation to stimulate hormone activity. This process can encourage females to spawn, though it may result in lower hatch rates compared to wild females.

In a hatchery, larvae are reared in circular tanks with specific water conditions. The salinity is maintained at approximately 32 parts per thousand, and the pH is kept at 8.2. The nauplius stage does not require feeding, but the protozoea stage is fed a culture of diatoms. As they reach the mysis stage, they are fed artemia nauplii and an egg-prawn-custard mix. Postlarvae are fed minced mussel meat or mantis shrimp powder until they reach the PL-20 stage. After 20 days, they are ready to be moved into grow-out ponds.

The global shrimp industry is massive, with a total production of about 6 million tonnes. Of this, approximately 3.4 million tonnes come from capture fisheries and 2.4 million tonnes come from aquaculture. In 2005, the Indian prawn contributed about 2.4% to global fisheries and 1.2% to global farmed shrimp production. Saudi Arabia was a leading producer in 2005, producing nearly 11,300 tonnes. Vietnam followed closely with 10,000 tonnes. While the Indian prawn has a lower market value than the Penaeus monodon, it is often more profitable because it is easier to breed and rear.

While the Indian prawn is a vital resource, there are environmental concerns regarding its harvest. In 2010, Greenpeace International added the species to its seafood red list. This was not because the prawns themselves are threatened with extinction. Instead, the concern is the high amount of bycatch caused by fishing methods. Bycatch occurs when other animals are caught accidentally during the process. This can include endangered species, such as sea turtles. Managing how we catch these prawns is essential to protecting the broader marine ecosystem.