Geukensia demissa   (Dillwyn, 1817)

Ribbed mussel
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Geukensia demissa

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

Bivalvia | Mytilida | Mytilidae

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

Benthic; brackish; depth range 0 - 20 m (Ref. 83435).  Tropical; 64°N - 24°N, 174°W - 52°W (Ref. 3446)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Atlantic and Eastern Pacific.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 12.0 cm TL male/unsexed; (Ref. 7726)

Biology     Glossary (e.g. epibenthic)

Western Central Atlantic; Northwest Atlantic: Canada to northeastern Florida; Gulf of Mexico; introduced to California. 8 cm, total length. It lives attached to hard substrates intertidally or at shallow subtidal depths. Diagnostic features: Shell mussel-shaped, thin but strong. Shell margins crenulated. Sculpture of strong, numerous, bifurcating radial ribs, weaker on anteroventral area. Hinge teeth absent. Colour: externally variable, usually yellowish brown, greenish brown, or dark brown, internally bluish white with posterior end (rounded area) purplish (Ref. 271). Maximum depth range based on its ecology; to be replaced with a better reference.

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

Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.

Main reference References | Coordinator | Collaborators

Harvey-Clark, C. 1997. (Ref. 7726)

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

Human uses

Fisheries: commercial
| FishSource |

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
References

Internet sources

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

Estimates based on models

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.19-0.33).
Vulnerability (Ref. 71543): Low to moderate vulnerability (33 of 100).
Price category (Ref. 80766): Medium.

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