2. Different living conditions: King crabs belong to deep-sea crabs, with a survival depth of 850 meters and a survival water temperature of 2-5℃. Distributed in the western and southern waters of Australia. Habitat depth is from 100 to180m.
3. The living environment is different: king crabs mostly live in muddy sand in shallow water and inhabit the waters in low latitudes. Emperor crab (giant paramecium crab), giant paramecium crab can live in marine and estuarine environment, especially in mud, sand or rock seabed, aquatic plants and swamps.
Extended data:
Breeding of king crab;
The breeding speed of king crabs is amazing, and each female crab can produce nearly 10 thousand live crabs every year. King crabs usually lay eggs in shoals about 350 meters away from April to June every year. Most of these creatures live in muddy sand in shallows and inhabit the waters in low latitudes.
In the breeding season, the female king crab and the male king crab hatch after mating. Generally speaking, the fertile period of a king crab is four years in its life span of about 30 years. The hatching ratio of eggs is about 16000/80000.
Habitat of emperor crab:
Crab-like giant crabs can live in marine and estuarine environments, especially mud, sand or rock seabed, aquatic plants and swamps. They can withstand the salinity of 4-52‰ and survive at the temperature of 0-30C.
Therefore, they can survive in the low salinity environment of the estuary. Molecular biology studies using COI gene show that the communities in the North Sea and the Bay of Biscay are genetically different from each other, while those in Iceland and the Faroe Islands are even more different. It can be seen that it is difficult for common crabs to enter deeper waters.
There are many ways for common crab to spread the community, including ballast water, hull, packing with seaweed and other materials, boating, and larval migration with the current. The common crab in Australia can spread for a long distance, which can be driven by human activities.
Baidu encyclopedia-king crab
Baidu Encyclopedia-Macrobrachium giganteum