Rangia cuneata   (Sowerby I, 1831)

Atlantic rangia

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Rangia cuneata  AquaMaps  Data sources: GBIF OBIS
Upload your photos 
| All pictures | Google image |
Image of Rangia cuneata (Atlantic rangia)
Rangia cuneata

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

Bivalvia | Venerida | Mactridae

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

Benthic; brackish; depth range 0 - 124 m (Ref. 104339), usually 0 - 2 m (Ref. 104339).  Tropical; ? - 15°C (Ref. 104336); 31°N - 17°N, 98°W - 81°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Atlantic: The Gulf of Mexico from Campeche to northwest Florida. Introduced to the Atlantic coast of North America (east coast of Florida to Chesapeake Bay and to the Hudson River). Northeast Atlantic: Introduced in Belgium and Poland. Tropical to temperate.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 1 - ? cm Max length : 9.4 cm SHL male/unsexed; (Ref. 104339); max. reported age: 15 years (Ref. 104339)

Short description Morphology

Shell oval, heavy, very thick. Hinge with lateral teeth transversally striated. Pallial sinus reduced. Umbones anterior, pointing inward and in anterior direction. Periostracum strong and smooth. Colour: externally dirt white, internally glossy white with slight blue-grey tinge; periostracum grey-brown (Ref. 271).

Biology     Glossary (e.g. epibenthic)

Maximum depth range from Ref. 104365. Lives in low salinity waters, found predominantly in estuaries (Ref. 121904). Also in salt marsh (Ref. 104365). Subtidal (Ref. 104487). It is found infaunal in sandy mud, in very low salinity brackish water (Ref. 271). Habitats have high water turbidity. Found in soft substrates which are a mixture of sand, mud and vegetation (Refs. 104240, 104487). A non-selective filter-feeder which turns substantial quantities of plant detritus and phytoplankton into clam biomass. Also obtains nutrition from sediments via direct ingestion or by feeding on bacteria. Predators include fish, crabs, gastropods and ducks (Ref. 104240).

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

Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833). Spawning is continuous throughout the year (Ref. 104339).

Main reference References | Coordinator | Collaborators

Carpenter, K.E. (ed.). 2002. (Ref. 271)

IUCN Red List Status (Ref. 130435)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FishSource | Sea Around Us


More information

Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | 1 GoMexSI (interaction data) | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 23.2 - 25.1, mean 23.9 (based on 121 cells).
Resilience (Ref. 69278): Very Low, minimum population doubling time more than 14 years (K=0.01-0.03; tmax=15).
Price category (Ref. 80766): Low.