United States (contiguous states) country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: Antonelis, K., D. Huppert, D. Velasquez and J. June, 2011
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: C: Refs. 8391, 93916, 94122, 865, 78677, 104211, 104216.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Shirley, S.M., T.C. Shirley and S.D. Rice, 1987
National Database:

Common names from other countries

Dungeness crab, ... more

Classification / Names / Names প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Decapoda (Lobster, shrimp and crabs) > Cancridae (rock crabs)

Environment: milieu / climate zone / depth range / distribution range বাস্তুসংস্থান

; ঈষৎ লোনা ; গভীরতার পরিসীমা 0 - 360 m (Ref. 865). Temperate; 3°C - 19°C (Ref. 104779), preferred 9°C (Ref. 107945); 61°N - 23°N, 179°W - 110°W

বিতরণ দেশ সমূহ | এফ এ ও এলাকাসমূহ | বাস্তুতন্ত্র | দৃষ্টিগোচর | প্রচলন

Eastern Pacific: Aleutian Islands, Alaska to Magdalena Bay, Mexico. Subtropical to boreal.

Length at first maturity / আকৃতি / ওজন / Age

Maturity: L_m ?, range 10 - ? cm Max length : 22.5 cm CW পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 865); 16 cm CW (female); সর্বোচ্চ উলি্ল্লখিত বয়স : 10 বৎসর (Ref. 104779)

Maximum length for females from Ref. 104779. Epibenthic in estuaries and nearshore environments (Ref. 104211). It is found on soft bottoms in very low intertidal areas to a depth of 360 meters (Ref. 865). Found on seagrasses (Refs. 104216, 106869). Juveniles inhabit and forage on estuaries, particularly in oyster reefs, oyster beds (Ref. 104211, 113901), and eelgrass (Ref. 104211).

Life cycle and mating behavior পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট

Life cycle: The fertilized egg hatches into prezoeae larva and molts into zoea an hour after. The larvae undergo five zoeal stages before molting into megalopae. The megalopae molts into juvenile stage before further molting (at most 12 times) into adult stage (Ref. 104779). Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer (Ref. 833). Males locate premolt females through a pheremonal homing system. Male holds the female in an embrace for at most 7 days prior to the female's molting. An hour after molting, copulation occurs through insertion of male gonopods into the spermathecae of the female to deposit sperm (indirect sperm transfer). The female may then be embraced again for 2 days. Pre- and post-mating embraces are done to protect females from predation, aside from insuring mating success. Mating occurs in estuaries but spawning takes place offshore (Ref. 104779). Crabs can store and utilize sperm for at least 2 years. Eggs are fertilized as they pass through the spermathecae during extrusion (Ref. 104787).