Ostreidae

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Ostreidae
Crassostrea gigas p1040847.jpg
Pacific oyster, Magallana gigas
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Superfamily: Ostreoidea
Family: Ostreidae
Rafinesque, 1815
Genera

12-15, See text.

The Ostreidae, the true oysters, include most species of molluscs commonly consumed as oysters. Pearl oysters are not true oysters, and belong to the order Pteriida.

Like scallops, true oysters have a central adductor muscle, which means the shell has a characteristic central scar marking its point of attachment. The shell tends to be irregular as a result of attaching to a substrate.

Both oviparous (egg-bearing) and larviparous (larvae-bearing) species are known within Ostreidae. Both types are hermaphrodites. However, the larviparous species show a pattern of alternating sex within each individual, whereas the oviparous species are simultaneous hermaphrodites, producing either female or male gametes according to circumstances.

Members of genus Ostrea generally live continually immersed and are quite flat, with roundish shells. They differ from most bivalves by having shells completely made up of calcite, but with internal muscle scars of aragonitic composition. They fare best in somewhat oligotrophic water. They brood their fertilized eggs for various proportions of the period from fertilization to hatching.

Members of genera Saccostrea , Magallana , and Crassostrea generally live in the intertidal zone, broadcast sperm and eggs into the sea, and can thrive in eutrophic water. One of the most commonly cultivated oysters is the Pacific oyster, which is ideally suited for cultivation in seawater ponds.

Genera and species

Crassostrea rhizophorae Crassostrea rhizophorae 000.jpg
Crassostrea rhizophorae

Related Research Articles

<span class="mw-page-title-main">Oyster</span> Variety of families of Mollusc

Oyster is the common name for a number of different families of salt-water bivalve molluscs that live in marine or brackish habitats. In some species, the valves are highly calcified, and many are somewhat irregular in shape. Many, but not all oysters, are in the superfamily Ostreoidea.

<i>Crassostrea</i> Genus of bivalves

Crassostrea is a genus of true oysters containing some of the most important oysters used for food.

<span class="mw-page-title-main">Pacific oyster</span> Species of bivalve

The Pacific oyster, Japanese oyster, or Miyagi oyster is an oyster native to the Pacific coast of Asia. It has become an introduced species in North America, Australia, Europe, and New Zealand.

<i>Saccostrea glomerata</i> Species of bivalve

Saccostrea glomerata is an oyster species belonging to the family Ostreidae.

<i>Ostrea</i> Genus of bivalves

Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters.

<span class="mw-page-title-main">Placunidae</span> Family of bivalves

Placunidae, also known as windowpane oysters, windowpane shells, and Capiz shells, are a taxonomic family of saltwater clams, marine bivalve mollusks which are related to oysters and scallops.

<span class="mw-page-title-main">Rock oyster</span> Genus of bivalves

Rock oysters are true oysters of the genus Saccostrea, belonging to the subfamily Saccostreinae of the family Ostreidae.

<i>Clithon</i> Genus of gastropods

Clithon is a genus of freshwater snails or brackish snails that have an operculum, aquatic gastropod molluscs in the family Neritidae, the nerites.

<i>Voluta</i> Genus of gastropods

Voluta is a genus of medium to large sea snails, marine gastropod molluscs in the family Volutidae, the volutes.

<i>Hexaplex</i> Genus of gastropods

Hexaplex is a genus of medium-sized to large sea snails, marine gastropod mollusks in the subfamily muracinae of the family Muricidae, the murex shells or rock snails.

<i>Hyotissa</i> Genus of bivalves

Hyotissa is a genus of large saltwater oysters, marine bivalve mollusks in the family Gryphaeidae.

Ostrea permollis, the sponge oyster, is a species of bivalve mollusc in the family Ostreidae. It can be found along the Atlantic Coast of North America, ranging from North Carolina to the West Indies.

<i>Conus compressus</i> Species of sea snail

Conus compressus is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.

<i>Saccostrea cucullata</i> Species of bivalve

Saccostrea cucullata, the hooded oyster or Natal rock oyster, is a species of rock oyster found mainly in the Indo-Pacific Ocean.

<i>Lopha</i> Genus of bivalves

Lopha is a genus of marine bivalve molluscs in the family Ostreidae.

<i>Magallana</i> Genus of bivalves

Magallana is a genus of true oysters containing some of the most important oysters used for food. Species in this genus have been moved from Crassostrea after it was found to be paraphyletic.

Tiarella is a genus of sea snails, marine gastropod mollusks in the family Mitridae.

<i>Magallana bilineata</i> Species of bivalve

Magallana bilineata, commonly known as the Philippine cupped oyster or slipper oyster, is an economically important species of true oyster found abundantly in the western Pacific Ocean, from the Philippines to Tonga and Fiji. In 2020 an exotic population was discovered in north-east Australia. They grow attached to hard objects in brackish shallow intertidal or subtidal waters, at depths of 0 to 300 metres. They are cultured extensively in the Philippines, where annual landings can range from 11,700 to 18,300 tons. They are known as talaba or talabang tsinelas in Filipino to distinguish them from talabang kukong kabayo

The Iwagaki oyster, is an oyster native to Japan. It was first described in 1934.

References

  1. Salvi, Daniele; Mariottini, Paolo (4 July 2016). "Molecular taxonomy in 2D: a novel ITS2 rRNA sequence-structure approach guides the description of the oysters' subfamily Saccostreinae and the genus Magallana (Bivalvia: Ostreidae)". Zoological Journal of the Linnean Society. 179 (2): 263–276. doi: 10.1111/zoj.12455 . ISSN   0024-4082. OCLC   7145306501.
  2. 1 2 3 4 5 6 7 8 9 10 Bouchet, P.; Marshall, B. (2016). Magallana Salvi & Mariottini, 2016. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=836032 on 2017-12-22
  3. Bouchet, P.; Gofas, S. (2017). Cryptostrea Harry, 1985. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=415253 on 2017-12-21
  4. "WoRMS - World Register of Marine Species - Dendostrea Swainson, 1835". www.marinespecies.org. Retrieved 2021-10-01.