North America of these crayfish one's previous experience, formal name calls fresh water langouste, also cry " shrimp of a huge legendary turtle " . Some closer year there is discovery in European each country, present the state that explosive type grows, because European each country is right the protection of wild animal is quite strict, people dare not catch casually these crayfish. These are the crayfish that had not grown year after year in the graph. (the picture comes from Oriental IC)European do not have edible the habit of langouste of this kind of fresh water, everybody feels to this kind of strange live thing be at a loss what to do, the carry after can catching completely entirely actually comes to China, still can earn brushstroke, the favour such as this goes where searching. (the picture comes from Oriental IC)European each country is common zoology is retentive very good, the water quality of each water system is very good, this formed very advantageous condition to the growth of crayfish, formed the degree of irremediable in very short time so. According to speculation, these crayfish are probable it is somebody after free captive animals, natural breed forms. (the picture comes from Oriental IC)According to the report, german Berlin runs rampant because of crayfish, allow to local farm is caught and sell crayfish, urge a citizen with " eat " means controls crayfish. At present place has captured 4000. (the picture comes from Oriental IC)