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 Mollusca

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">Rock oyster</span> Genus of bivalves

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

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

The Portuguese oyster is a species of oyster found in the southwest Iberian Peninsula, closely related to the Pacific oyster. Although first identified as a native European species, genetic studies have suggested the Portuguese oyster originated from the Pacific coast of Asia and was introduced to Europe by Portuguese trading ships in the 16th century. The species is usually found in coastal river mouths and estuaries.

<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>Nitidella</i> Genus of gastropods

Nitidella is a genus of sea snails, marine gastropod mollusks in the family Columbellidae, the dove snails.

<i>Eburna</i> Genus of gastropods

Eburna is a genus of sea snails, marine gastropod mollusks in the family Ancillariidae.

<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>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>Ostrea equestris</i> Species of bivalve

Ostrea equestris, commonly known as the crested oyster or horse oyster, is a species of bivalve mollusc in the family Ostreidae. It can be found along the Atlantic coast of North and South America, ranging from Virginia to Patagonia.

<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.

<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

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

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.
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