For those of you who like to consume seafood, crab name is not familiar to the ear. Sea crabs that this is indeed often the choice of sea food enthusiasts as favorite food. This is supported by the state of our country is known as the greatest maritime nation in the world.
Sea area of 5.8 million square kilometers, while the land area is only about 1.9 million square kilometers. Of course this makes Indonesia the country with abundant marine products. Small crab is one of them.
Around the Pacific Ocean and the Indian Ocean, there are approximately 234 types of crab. Most of them are in our waters, the 124 type. Swimming crab (Portunus pelagicus) is a much sought after species. In addition to its delicious taste, as well as the famous selling point is quite expensive. The nutritional value of crab was also quite high, with about 65 percent protein, 7.5 percent minerals and fat less than 1 percent.
Crab fishing areas which are north coast of Bali precisely in Gilimanuk, Pengambengan or the southern coast of Bali, north and south coast of East Java, Lampung coast to Medan and West Kalimantan.
Portunus pelagicus from Indonesia has been exploring all over the world through the export process. 60 per cent of Indonesian crab catches are sent to America, Australia, and Canada. In addition, fresh crabs have also been exported to Singapore and Japan. On the other hand, the results of refined products in the form of canned crab has also been sent to the Netherlands. Rajungan occupies a third of export commodities as prawns and fish.
Characteristics and Crab Marine Environment.
Small crab or sea crab, commonly referred to as the swimming crab, because he is a crab that can swim in the water. Swimming crabs can only live in sea water environment. These crabs can not live in a dry environment without water. But crabs are also often ride to the mainland when sea water is receding.Small crab shells rounded and flat. On the left and right eyes are small crab nine spines. Swimming crabs have five pairs of legs. The legs are made up of a pair of tweezers, three pairs of legs and a pair of feet road last as an outdoor tool that culminate rounded, similar to the paddle. It makes crab can not swim well and sea water swept away.
Rajungan has unique properties. He likes to bury itself in the mud or sand, especially during the day and in the winter. These animals usually forage was high tide when the sea water. Crab food is fish, algae, and bivalves ( two -shelled mollusks ) .
Crab Aquaculture Sea.
Almost all species of crab has the potential to be traded. Besides Portunus pelagicus, also there are other types such as Portunus trituberculatus, Portunus gladiator, Portunus sanguinus, and Portunus hastatoides.
Crab cultivation during this classic problem , because including new types of farms . Yet surely the right business model , the cost of production is uncertain , as well as sea crab survival is very low due to the occurrence of intraspecific eat each other , making small crab cultivation in the country is still vibrant as well as ornamental fish and shrimp .
In fact , small crab has economic value that is not less famous than the shrimp and ornamental fish . Therefore , it needs a lot of research and extension to make crab farms is growing from day to day .
An alternative solution to maintain the presence of crabs in nature is to do farming or farm crabs. Therefore, it is important to know the characteristics, life cycle and maintenance methods crab before cultivation is done.
In principle , crab cultivation is not much different from shrimp farming . However, some cultivation techniques must be adapted to the type of crab , because each type of crab has the nature and way of life different .
This small crab cultivation should be done at the beach or seaside water is not polluted , such as Jakarta Bay . Besides safer for the health of cultivated crab , which has not been polluted water will make it easier and cheaper for cultivation due process does not require treatment or special medications in order to grow healthy sea crab .
Crab cultivation takes 5 months, since hatching eggs to be breeding. Magnification can be implemented in poly seeds, along with herbivorous fish in a net bag in the fundamental, or in conjunction with carnivorous fish in a net bag compound.
Ingredients and Benefits Sea Crab.
As one of the seafood that is relatively expensive, crab or sea crabs are not only delicious but also rich in nutritional content. When compared with land crabs, swimming crabs have a higher nutritional value, especially in terms of phosphorus, iron, calcium, vitamin B1, and vitamin A.In addition, the crab is also rich in protein. Rajungan can be a decent source of protein because protein content equivalent to a regular source of protein we consume, ie beef, chicken, and eggs.
Another advantage of the crab is a very low fat content. Low fat content indicates that the crab is a type of food that is good because it does not contain cholesterol and saturated fat.
From the contents of the nutrient, people can take advantage crab wisely. Used water boiled crab can be used to make crab crackers. The water also contains chitin and chitosan, which serves as an absorber of toxins.
Chitin and chitosan in crab can also be used in the water purification process. Polymer kitinnya also good if used as a contact lens material. Contact lenses are made of chitin polymer will be more comfortable to wear because it is able to absorb oxygen well, so that the eye does not dry quickly.
Both substances were obtained from the crab's body can also be used as a wrapper capsule. Chitin and chitosan safe and healthy if used as packing material for capsules of both of these substances can be degraded shortly after the drug is consumed slowly. Because not degraded at once, wrapping capsule of chitin and chitosan help drug release (capsule contents) is more controlled.
If processed further, chitosan will degrade specific substances that are blood anticoagulant and antibacterial. Not only that, chitin in marine crabs are also useful as antitumor and anti-cholesterol agents.
Choosing a Good Crab Sea.
After understanding the nutrient content in the crab's body, it helps us meet our nutritional needs by eating marine animals. Rajungan can be found in the traditional markets, particularly in fish markets.Choosing a quality crab that bother easy. You must be observant utilize your senses to not choose a small crab that are no longer fresh. Generally, small crab can be assessed freshness of appearance, taste, aroma, and texture. These are the characteristics of fresh crab:
The characteristics of the swimming crab Fresh and Good For Consumed
1. Her body looks clean
2. Not issue a foul scent
3. Flesh yellowish white looks pretty tight and fibrous
4. The meat moist, fragrant and somewhat containing liquid
Sea crabs that are not normally visible black fresh, dried meat, and slimy. To check the freshness of the crab, note the chest, meat and if possible check the condition of the gills and eggs (if any).
Thank you for reading this article. Written and posted by Bambang Sunarno.
sunarnobambang86@gmail.com
author:
http://schema.org/Personal.
https://plus.google.com/105319704331231770941.
name: Bambang Sunarno.
http://primadonablog.blogspot.com/2014/02/did-you-know-about-crabs-sea.html
DatePublished: February 05, 2014 at 13:04
7MHPNPADAEFWTag ; Crabs Sea.
