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Mytella bicolor   (Bruguière, 1792)

Guyana swamp mussel

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

Bivalvia | Mytiloida | Mytilidae

Environment / Climate / Range

Benthic.  Tropical; 30°N - 29°S, 114°W - 34°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Eastern Central Pacific and Western Atlantic: Mexico and Southern Caribbean to southeast Brazil.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 2 - 4.296 cm Max length : 7.0 cm DL male/unsexed; (Ref. 83435); common length : 9.0 cm TL male/unsexed; (Ref. 344)

Biology     Glossary (e.g. epibenthic)

Intertidal in bays and protected areas, forming clumps attached to mangrove prop roots or other hard substrates (Ref. 344) via its byssus (Ref. 104222). Attached to mangrove roots, particularly on Rhizophorae mangle (Ref. 104222). Some found to be buried in substrate. Also occurs in a river estuary. Highly tolerant to salinity variations (Ref. 104223). Parasitic on this mussel are Rickettsia-like organisms, Apicomplexa and Platyhelminthes (Ref. 104222). In general, suspension feeding bivalves mainly depend on phytoplankton and detritus material for nutrition (Ref. 107088). Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833).

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).

Main reference References | Coordinator | Collaborators

Leal, J.H. 2003. (Ref. 344)

Short description Morphology

Shell mussel-shaped, elongate, ventral region concave. Oblique ridge runs anterodorsal to posteroventral region of valve. Umbones subterminal. Posterior part of the mantle with branching tentacles. Colour: externally greenish on posterodorsal region (above ridge) and yellowish brown on anteroventral region (below ridge).

IUCN Red List Status (Ref. 114614)

   

CITES status (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless

Human uses

Fisheries: commercial
| FisheriesWiki |

Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.9 - 28.7, mean 27.3 (based on 614 cells; Ref. 115970).
Price category (Ref. 80766)
Medium