think small lobster
The difference between an English crayfish and an American crayfish is the English crayfish grows to about 3 inches long. It is red- brown in color. It's claws has a turquois and white blotch on the edge of the claw. The American crayfish grows to about 6 inches long. This crayfish is much larger and it's claws are red underneath.
As with most foods, the identity of the first person to crayfish is lost in the mists of time and cannot be discovered. It was undoubtdedly a Native American.
Crayfish
No. All species of crayfish which are not native to North America (European, Asian and Australian too) are susceptible to crayfish plague. The disease is caused by a water mould present in all America. Crustaceans die within few weeks of being infected. What's more American crays are not only immune to the plague but also are carriers of the mould. This fact causes severe problems in Europe, where some American species were introduced (signal crayfish, swamp crayfish, belted crayfish) and now are increasing in number and range bringing European crays (bigger and of higher economical value) closer to the brink of extinction.
Crayfish belong to the animal kingdom (Animalia), phylum Arthropoda, subphylum Crustacea, class Malacostraca, order Decapoda, and family Cambaridae (for North American species).
Crayfish are known as both crayfish and yabbies in Australia. "Yabbies" are freshwater crayfish, often found in rivers, creeks and dams in rural areas.
My older crayfish died and my littler crayfish has not yet how do/can they die?
Do crayfish have tarritoris
Crayfish are omnivores.
protects the crayfish
Crayfish are related to small lobsters. Here is a link for pictures of crayfish. http://mackers.com/crayfish/pics.htm
Crayfish are invertebrates.