You can sponsor this page

Ruditapes philippinarum   (Adams & Reeve, 1850)

Japanese carpet shell
Upload your photos 
| All pictures | Google image |
Image of Ruditapes philippinarum (Japanese carpet shell)
Ruditapes philippinarum
Picture by FAO

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

Bivalvia | Venerida | Veneridae

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

Benthic; brackish; pH range: 13.5 - 35.0; depth range 0 - 100 m (Ref. 356).  Tropical; ? - 35°C (Ref. 104360), preferred 18°C (Ref. 107945); 56°N - 11°S, 75°E - 164°E (Ref. 348)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-Pacific and the Mediterranean: from India and Sri Lanka to Micronesia; north to Sakhalin, the Japan Sea and Hawaii (introduced), and south to Indonesia. Introduced in the Northeast Atlantic.

Length at first maturity / Size / Weight / Age

Maturity: Lm 2.7  range ? - ? cm Max length : 8.0 cm SHL male/unsexed; (Ref. 348); common length : 5.0 cm SHL male/unsexed; (Ref. 348); max. reported age: 14 years (Ref. 104360)

Biology     Glossary (e.g. epibenthic)

Introduced incidentally with Japanese oysters (Crassostrea gigas), or for aquaculture trials, in many areas (Ref. 348). Found in littoral to sublittoral sediments (Ref. 1314). Intertidal and upper subtidal flats (Ref. 106937). Common in protected marine areas (Ref. 348). With short siphons and buries to only about 10 cm deep in a variety of substrates, from mud, sand, and gravel, high along intertidal areas (Refs. 95344, 104238). Occasionally overlaps with Zostera japonica beds or Zostera marina beds in the intertidal (Ref. 106937). Suspension feeder. Diet includes phytoplankton (Refs. 104238, 104360), benthic diatoms, and terrestrial organic matter (Ref. 104238). Spawning occurs throughout the year, peaking once (Ref. 97475).

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

Broadcast spawners. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger (with ciliated vellum to assist mobility and feeding), resembling a miniature clam. After 2-4 weeks, it develops into a peliveliger with a formed foot to assist further with swimming, as well as byssal threads to help the clam secure itself onto the seafloor once it finds a suitable substrate to settle on. Burrowing into the ground allows the animal to find food and be protected from predators. Once settled, it will stay in the substrate and continue to grow into a mature clam.

Main reference References | Coordinator | Collaborators

SAUP Database. 2006. (Ref. 356)

IUCN Red List Status (Ref. 127697)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
FAO - Aquaculture: production, species profile; Fisheries: landings, species profile | FishSource | Sea Around Us


Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Aquaculture: species profile; Fisheries: species profile; publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 15.7 - 29.1, mean 28.2 (based on 1790 cells).
Prior r = 1.19, 95% CL = 0.79 - 1.79, Based on 1 stock assessment.
Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Medium.