Magallana sikamea, Kumamoto oyster : fisheries
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Magallana sikamea   (Amemiya, 1928)

Kumamoto oyster
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drawing shows typical species in Ostreidae.

Classification / Names Κοινά ονόματα | Συνώνυμα | CoL | ITIS | WoRMS

Bivalvia | Ostreida | Ostreidae

Environment: milieu / climate zone / εύρος βάθους / distribution range Οικολογία

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

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

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

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 6.0 cm SHL αρσενικό/απροσδιόριστο; (Αναφ. 101471)

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

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). This species is found in intertidal areas, particularly on hard substrates (Ref. 86665). Also occurs in a muddy flat (Ref. 106134) as well as in estuary in tidal flats (Ref. 106135). In general, suspension feeding bivalves mainly depend on phytoplankton and detritus material for nutrition (Ref. 107088).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | 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 Αναφορές | Συντονιστής | Συνεργάτες

Camara, M. D., J.P. Davis, M. Sekino, D. Hedgecock, G. Li, C.J. Langdon and S. Evans 2008 The Kumamoto oyster Crassostrea sikamea is neither rare nor threatened by hybridization in the Northern Ariake sea, Japan. Journal of Shellfish Research 27(2):313-322. (Αναφ. 86665)

IUCN Red List Status (Αναφ. 130435: Version 2025-1)

  Not Evaluated 

CITES status (Αναφ. 108899)

Not Evaluated

CMS (Αναφ. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses

αλιεία: Εμπορικό(ά)
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Εργαλεία

E-book | Οδηγός πεδίου

Περισσότερες πληροφορίες

Τροφική Οικολογία
Food items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Οικολογία
Οικολογία
Population dynamics
Αύξηση
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Αφθονία
Life cycle
Αναπαραγωγή
Γεννητική Ωρίμανση
Γονιμότητα
Γεννοβολία
Eggs
Egg development
Larvae
Distribution
Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
Physiology
Κατανάλωση οξυγόνου
Human Related
Stamps, coins, misc.
Outreach
Συνεργάτες
Taxonomy
Κοινά ονόματα
Συνώνυμα
Μορφολογία
Φωτογραφίες
Αναφορές
Αναφορές

Διαδικτυακές πηγές

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Δέντρο Ζωής | Wikipedia (Go, αναζήτηση) | Zoological Record

Estimates based on models

Fishing Vulnerability (Αναφ. 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.

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