Crayfish

is found in permanent freshwater streams, billabongs and lakes on the north coast of the Northern Territory and northeastern Queensland.[1] Populations are also found in Papua New Guinea. Through translocation by humans, the range has spread down to southern Queensland and into the far north of West Australia. C. quadricarinatus is considered an invasive species, and has established feral populations in South Africa, Mexico, Jamaica and Puerto Rico.[1]
This tropical crustacean is very tolerant of environmental changes, and is primarily a detritivore.