Bivalvia | Ostreida
Environment: milieu / climate zone / depth range / distribution range
Benthic; brackish. Subtropical; 37°N - 17°N, 108°E - 134°E
Northwest Pacific: from Japan to South Korea, China and Taiwan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  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).
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. 126983)
CITES status (Ref. 108899)
Threat to humans
| FishSource | Sea Around Us
Estimates based on models
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).