Crayfish are found in all the continents of the earth, except in Africa and the Antarctic Continent. Species of crayfish have spread to certain countries, both developed and developing countries. This is done deliberately or unintentionally to replace the existing species with economic goals. (Brett 2006).
In Indonesia, many crayfish found a river in Papua. However, lobster, which comes from Papua is not all it can be caused by the original habitat that is relatively cold, so conditions are not suitable for hot areas such as the general areas in Indonesia.
The male sex
In crayfish, which mainly in pairs of male Cherax Quadriumumnya have red marks on the outside of both ends of capitnya. But the color red is not formed when capitnya still small. Generally, the size of 3 "or 7.5cm and have been seen.
That can create certainty is seen from his feet. Male sex is also visible bulge with a pair of legs on most tails. If only one so-called intersex.
Female genital
In the Red Claw lobster sex, there is no sign of red in the second capitnya. Female genital signs marked with the sphere in two to three feet from the well-calculated from the top and tail. Similarly, the male, female sex should also be a pair.
Thisinformation from here
In crayfish, which mainly in pairs of male Cherax Quadriumumnya have red marks on the outside of both ends of capitnya. But the color red is not formed when capitnya still small. Generally, the size of 3 "or 7.5cm and have been seen.
That can create certainty is seen from his feet. Male sex is also visible bulge with a pair of legs on most tails. If only one so-called intersex.
Female genital
In the Red Claw lobster sex, there is no sign of red in the second capitnya. Female genital signs marked with the sphere in two to three feet from the well-calculated from the top and tail. Similarly, the male, female sex should also be a pair.
Thisinformation from here
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