Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

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

Benthic; brackish. Subtropical; 37°N - 17°N, 108°E - 134°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northwest Pacific: from Japan to South Korea, China and Taiwan.

Length at first maturity / Size / Weight / Age

Maturity: L_m ? range ? - ? cm Max length : 6.0 cm SHL male/unsexed; (Ref. 101471)

Studies show that in comparison to Crassostrea gigas, this species is slower in growth, and smaller size. Morphologically, its left valve is deeply cupped its shell is ridged or highly wrinkled. In its native range, mature eggs are produced in early winter, while in the US Pacific, it comes in late summer through early winter (Refs. 86666, 86667). It is also known to have a one-way gametic incompatibility barrier, which prohibits the sperm of this species to fertilize other species, i.e., Crassostrea gigas (Refs. 86666, 86668). Since 1947, this species has been imported to the US for experimental and commercial purposes (Ref. 86669). Its conservation status remains questionnable due to the lack of information on its distribution as well as the taxonomic confusion with Crassostrea gigas (Ref. 86665).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

In its native range, mature eggs are produced in early winter, while in the US Pacific, it comes in late summer through early winter (Ref. 86666, 86667).

Main reference References | Coordinator | Collaborators

Camara, M. D., J.P. Davis, M. Sekino, D. Hedgecock, G. Li, C.J. Langdon and S. Evans. 2008. (Ref. 86665)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Not Evaluated

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial
| FishSource | Sea Around Us

Tools

E-book | Field guide

More information

Trophic Ecology

Food items
Diet
Food consumption
Ration
Predators

Ecology

Ecology
Home ranges

Population dynamics

Growth
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle

Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics

Distribution

Countries
FAO areas
Ecosystems
Occurrences
Introductions

Human Related

Aquaculture profile
Stamps, Coins Misc.

Outreach

Collaborators

Taxonomy

Common names
Synonyms
Morphology
Pictures

References

Internet sources

Estimates based on models

Vulnerability (Ref. 71543): Low vulnerability (10 of 100).

Nutrients : Calcium = 149 [71, 228] mg/100g; Iron = 8.53 [1.95, 15.11] mg/100g; Protein = 9.88 [8.64, 11.12] %; Omega3 = 0.313 [0.202, 0.423] g/100g; Selenium = 61 [50, 72] μg/100g; VitaminA = 0 μg/100g; Zinc = 2.04 [0.56, 3.51] mg/100g (wet weight); based on nutrient studies.

Comments & Corrections

Back to Search

Random Species