Crayfish Species

Signal Crayfish

• Signal crayfish are an aggressive type crayfish, normally found in rivers, canals and reservoirs. They can be 6 to 12 inches long. The body is a bluish brown to reddish brown color. They are much larger in size than many other types of crayfishes. Their claws are red underneath with a white spot on the surface. It was introduced for food in 1970 in North America. They are found across England and limited in Scotland.

Noble Crayfish

• The noble crayfish, otherwise known as broad-fingered crayfish, is a common species found in Europe. They come in a variety of colors, such as green, blue, brown and black. They live in fresh water streams like rivers and lakes. They normally grow up to about 6 inches. They feed on worms, aquatic insects and plants. They are capable of digging holes into the ground for shelter. Noble crayfish becomes mature in three to four years and breed in October and November.

Sunburst Fire Crayfish

• The sunburst fire crayfish is one of the largest species of crayfish. They have a gray body shell with red highlights, similar to a sun during sunset and even like fire, thus its name. They are very peaceful towards fish and rarely hunt them. But they can be aggressive towards the members of their own species. Thus, you will need a larger aquarium with enough hiding places if housing more than one. They grow up to 12 inches. They are easy to breed and the eggs hatch in 21 days. They eat any type of food.

Red Swamp Crayfish

• Red swamp crayfish are dark red in color with bright red spots all over the body. They grow up to 6 inches. They prefer still or slow moving waters like swamps, ponds and canals. They mate in autumn and lay eggs in spring. They are widely found in all continents except Australia and Antarctica.