Semimytilus algosus

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Semimytilus algosus
Naturalis Biodiversity Center - RMNH.MOL.316581 - Semimytilus algosus (Gould, 1850) - Mytilidae - Mollusc shell.jpeg
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Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Mytilida
Family: Mytilidae
Genus: Semimytilus
Species:
S. algosus
Binomial name
Semimytilus algosus
(Gould, 1850)
Synonyms

Semimytilus algosus is a species of mussels. A common name for this species is Dwarf mussel. [1] It is the first species where trioecy was reported in the phylum Mollusca. [2]

Contents

Size

Individuals can be up to 42 or 50 millimetres (1.7 or 2.0 in) in size. [3]

Reproduction

In the past this species was described as simultaneous hermaphroditic but it was later confirmed the species is trioecious. It is believed this species evolved from a gonochoric ancestor. [2]

Occurrence

Its habitat is rocky shores. [4] The species has been found off the coasts of South Africa and is native to Chile. [5] The species is also invasive off the coast of Angola and Namibia. [6]

References

  1. ↑ "Dwarf mussel". SANBI. 20 May 2018. Retrieved 2021-10-11.
  2. 1 2 Oyarzún, Pablo A.; Nuñez, José J.; Toro, Jorge E.; Gardner, Jonathan P. A. (2020). "Trioecy in the Marine Mussel Semimytilus algosus (Mollusca, Bivalvia): Stable Sex Ratios Across 22 Degrees of a Latitudinal Gradient". Frontiers in Marine Science. 7. doi: 10.3389/fmars.2020.00348 . ISSN   2296-7745.
  3. ↑ Branch, George (2017-03-10). Two Oceans: A guide to the marine life of southern Africa. Penguin Random House South Africa. pp. 60–36. ISBN   978-1-77584-278-1.
  4. ↑ Picker, Mike (2013-10-24). Alien and Invasive Animals: A South African Perspective. Penguin Random House South Africa. ISBN   978-1-77584-130-2.
  5. ↑ Greef, K. de; Griffiths, C. L.; Zeeman, Z. (2013-09-01). "Deja vu? A second mytilid mussel, Semimytilus algosus, invades South Africa's west coast" . African Journal of Marine Science. 35 (3): 307–313. Bibcode:2013AfJMS..35..307D. doi:10.2989/1814232X.2013.829789. hdl: 10019.1/121931 . ISSN   1814-232X. S2CID   84892353.
  6. ↑ Ma, Kevin C. K.; Zardi, Gerardo I.; McQuaid, Christopher D.; Nicastro, Katy R. (2020-09-11). "Historical and contemporary range expansion of an invasive mussel, Semimytlius algosus, in Angola and Namibia despite data scarcity in an infrequently surveyed region". PLOS ONE. 15 (9): e0239167. Bibcode:2020PLoSO..1539167M. doi: 10.1371/journal.pone.0239167 . ISSN   1932-6203. PMC   7485899 . PMID   32915915.
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