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Metacarcinus - Species in
Cancridae - - Classification -
- Cancridae
- Decapoda
- Malacostraca
- Chordata
- Animalia
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Metacarcinus magister (Dana, 1852)
Dungeness crab| Native range | All suitable habitat | Point map | Year 2050 |
|
| This map was computer-generated and has not yet been reviewed. |
| Metacarcinus magister AquaMaps Data sources: GBIF OBIS |
Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | CoL | ITIS | WoRMS
Malacostraca | Decapoda | Cancridae
Environment: milieu / climate zone / Mức độ sâu / distribution range Sinh thái học
; Thuộc về nước lợ; Mức độ sâu 0 - 360 m (Tài liệu tham khảo 865). Temperate; 3°C - 19°C (Tài liệu tham khảo 104779), preferred 9°C (Tài liệu tham khảo 107945); 61°N - 23°N, 179°W - 110°W
Distribution Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Những chỉ dẫn
Eastern Pacific: Aleutian Islands, Alaska to Magdalena Bay, Mexico. Subtropical to boreal.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ?, range 10 - ? cm Max length : 22.5 cm CW con đực/không giới tính; (Tài liệu tham khảo 865); 16 cm CW (female); Tuổi cực đại được báo cáo: 10 các năm (Tài liệu tham khảo 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 Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | Larvae
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).
Main reference
Các tài liệu tham khảo | Người điều phối | Người cộng tác
Shirley, S.M., T.C. Shirley and S.D. Rice 1987 Latitudinal variation in the Dungeness crab, Cancer magister: zoeal morphology explained by incubation temperature. Mar. Biol. 95(3):371-376. (Tài liệu tham khảo 8391)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Human uses
Các nghề cá: Tính thương mại
FAO - Các nghề cá: landings, species profile | FishSource | Biển chung quanh ta
Các công cụ
Thêm thông tin
Sinh thái dinh dưỡng
Sinh thái học
Population dynamics
Sự sinh trưởng
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Sự phong phú
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Sự phong phú
Life cycle
Distribution
Physiology
Human Related
Stamps, coins, misc.
Outreach
Taxonomy
Các tài liệu tham khảo
Các nguồn internet
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Các nghề cá: species profile; publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Cây Đời sống | Wikipedia (Go, tìm) | Tạp chí Zoological Record
Estimates based on models
Preferred temperature
(Ref. 115969): 5.8 - 9.8, mean 7.8 (based on 87 cells).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 3 data-limited stock assessments.
Climate Vulnerability
(Tài liệu tham khảo 125649):
Moderate to high vulnerability (51 of 100).
Nutrients : Calcium = 109 [35, 184] mg/100g; Iron = 1.59 [1.21, 1.97] mg/100g; Protein = 20.2 [19.2, 21.3] %; Omega3 = 0.285 [0.185, 0.386] g/100g; Selenium = 48.3 [-31.7, 128.3] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.79 [1.17, 2.40] mg/100g (wet weight); based on nutrient studies.