Crab

List " crabe"

Brachyura

blue Crab, Crab violonist, Chinese Crab, Crab of snows, Crab of ground or Crab arrow, red Crab of Galapagos, giant Crab of Tasmanie, Crab spider like the Crab spider giant or the Crab spider giant of Japan, crab boxer, phantom Crab, the crabs of mangrove, coral Crab

Paguroidea

Crab of coconut, royal crabs, thorny Crab, Crab-mole, royal Crab of Kamtchatka

Description

There exist marine crabs, some crabs of fresh water and crabs terrestrial of which arboricolous crabs. They have all five pairs of legs of which first is modified to form a pair of grips. Certain species are toxic especially the very coloured crabs Xanthidea . The Demania toxica is regarded as most poisonous of the marine animals.

Economic importance

Without to be all edible or all consumed, the crab is an important food resource for the men and is the subject thus of a particularly developed economic activity. In the Mediterranean basin, crab of rock (green crab) commonly formed part of the traditional receipts like the Fish soup. As for the oil cake, it is generally fished in Brittany.

One considers the captures world of crabs with 1,2 million tons per annum (given 2003). It should however be stressed that the crab being a coastal animal very easy to capture, this figure does not take account of individual fishing and artisanal fishing, especially in the poor countries, crab representing a very economic source of proteins. On the coasts of equatorial Africa, the children catch the blue crabs easily which they simply make roast with ember.

The fishing of the crabs of Kamtchatka only represents an annual taking away of approximately 45.000 tons.

Fish with crabs

The majority of crabs are fished with the racks, in certain zones it is the only authorized form, like that managed by CCFFMAR.

Preserve crab

The manufacture of crab preserves are very regulated for several reasons. On the one hand because of important value of this product, it is the subject of fraud. Flesh of Poisson S, cheaper, being able to be substituted for crab besides the majority of the legislations accepts under name crab only the Brachyura and the Lithodidae , therefore in a direction even more reduced than that given by vernacular name. These limp can contain undesirable matters like fragments of carapace, gills, internal organs, cartilages, tendons of legs or an abnormal quantity of liquid. In addition because, like all the products of the sea, these products can prove very toxic if the conservation is bad with this intention the flesh must be conditioned in hermetically sealed containers and must have been the subject of a sufficient heat treatment to guarantee commercial sterility of it. It is conditioned more the share of time with additives but must be free from foreign matters and practically free from crystals of Struvite.

Symbolic system

The expression " To go out of crab " mean to move side. Whereas regarded positively during the Antiquity as protective animal, their reputation changes with the Moyen-âge as for the whole of the marine creatures. It even became malefic, symbol of the marine monsters walkers, this rejection is surely worsened by its practices necrophagous. They are regarded as impure by many Moslems who regard his consumption as Haram . Whereas in Asia, the species of the kind Dorippe for which one distinguishes an human face on their carapaces, are very required because, according to the legend, they contain the heart of the late warriors.

The name of the disease of cancer comes from the Greek name of crab, testimony that in occident the symbolic system related to this animal is rather negative.

See too

Spider crab
Liste of shellfish used in kitchen
By analogy the Limule S are called Crabe gilded
the spider-crabs are Araignées which points out the morphology of the Crabe S

External bonds

, Canadian regulation.

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