Concept
Oyster
Related concepts (31)
Eastern oyster
The eastern oyster (Crassostrea virginica)—also called the Atlantic oyster, American oyster, or East Coast oyster—is a species of true oyster native to eastern North and South America. Other names in local or culinary use include the Wellfleet oyster, Virginia oyster, Malpeque oyster, Blue Point oyster, Chesapeake Bay oyster, and Apalachicola oyster. C. virginica ranges from northern New Brunswick south through parts of the West Indies to Venezuela.
Perkinsus marinus
Perkinsus marinus is a species of alveolate belonging to the phylum Perkinsozoa. It is similar to a dinoflagellate. It is known as a prevalent pathogen of oysters, causing massive mortality in oyster populations. The disease it causes is known as dermo or perkinsosis, and is characterized by the degradation of oyster tissues. The genome of this species has been sequenced. The species originally was named Dermocystidium marinum by Mackin, Owen and Collier in 1950. P. marinus is a protozoan of the protist superphylum Alveolata, the alveolates.
Ostreidae
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.
Fishing dredge
A fishing dredge, also known as a scallop dredge or oyster dredge, is a kind of dredge which is towed along the bottom of the sea by a fishing boat in order to collect a targeted edible bottom-dwelling species. The gear is used to fish for scallops, oysters and other species of clams, crabs, and sea cucumber. The dredge is then winched up into the boat and emptied. Dredges are also used in connection with the work of the naturalist in marine biology, notably on the Challenger Expedition.
Ostrea lurida
Ostrea lurida, common name the Olympia oyster, after Olympia, Washington in the Puget Sound area, is a species of edible oyster, a marine bivalve mollusk in the family Ostreidae. This species occurs on the northern Pacific coast of North America. Over the years the role of this edible species of oyster has been partly displaced by the cultivation of non-native edible oyster species. Ostrea lurida is now known to be separate from a similar-appearing species, Ostrea conchaphila, which occurs further south, south of Baja California, in Mexico.
Haplosporidium nelsoni
Haplosporidium nelsoni is a pathogen of oysters that originally caused oyster populations to experience high mortality rates in the 1950s, and still is quite prevalent today. The disease caused by H. nelsoni is also known as MSX (multinucleated unknown or multinuclear sphere X). MSX is thought to have been introduced by experimental transfers of the Pacific oyster (Crassostrea gigas), which is resistant to this disease. MSX was first described in 1957, when it caused serious mortalities in Delaware Bay.
Oyster reef restoration
Oyster reef restoration refers to the reparation and reconstruction of degraded oyster reefs. Environmental changes, modern fishing practices, over harvesting, water pollution, and other factors, have resulted in damage, disease, and ultimately, a large decline in global population and prevalence of oyster habitats. Aside from ecological importance, oyster farming is an important industry in many regions around the world. Both natural and artificial materials have been used in efforts to increase population and regenerate reefs.
Skipjack (boat)
The skipjack is a traditional fishing boat used on the Chesapeake Bay for oyster dredging. It is a sailboat which succeeded the bugeye as the chief oystering boat on the bay, and it remains in service due to laws restricting the use of powerboats in the Maryland state oyster fishery. The skipjack is sloop-rigged, with a sharply raked mast and extremely long boom (typically the same length as the deck of the boat). The mainsail is ordinarily triangular, though gaff rigged examples were built.
Ostrea edulis
Ostrea edulis, commonly known as the European flat oyster, is a species of oyster native to Europe. In Britain and Ireland, regional names include Colchester native oyster, mud oyster, or edible oyster. In France, Ostrea edulis are known as huîtres plates (flat oysters) except for those that come from the Belon River estuary in Brittany, France, which are known as Belons. The fossil record of this species dates back to the Miocene (age range: 15.97 million years ago to present day).
Bugeye
The bugeye is a type of sailboat developed in the Chesapeake Bay for oyster dredging. The predecessor of the skipjack, it was superseded by the latter as oyster harvests dropped. Between 1820 and 1865, the state of Maryland banned the practice of dredging for oysters. In the latter year, the law was relaxed; the use of steam power remained banned, however, and remained entirely prohibited until 1965, in which year powered dredging was allowed two days of the week.