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Mytilicola Orientalis
''Mytilicola orentalis'' (known as 'oyster redworm' or 'red worm disease') is an intestinal copepod parasite of bivalves with a direct life cycle. It is native to the waters around Japan and was first described in the Japanese Sea and was introduced to Europe in the 1960s and 70's with oyster imports. Since then it has also been observed in the Wadden and the Baltic Sea. It has a wide range of host species in both its native range and in Europe. Ecology In a naturally infected population of pacific oysters 14% of the oysters were infected, with up to 20 ''M. orientalis'' in one oyster. The diet of this parasitic species in the blue mussel host consists of both host tissue and organic material in the gut of the host. The latter means that in some respects the species can be seen as a commensal and does not have to negatively impact its host. Females are often larger than males. Distribution and host species ''Mytilicola orentalis'' originates in the Japanese Sea and is known t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans Japanese archipelago, an archipelago of List of islands of Japan, 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa Island, Okinawa. Tokyo is the Capital of Japan, nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the List of countries and dependencies by population, eleventh most populous country in the world, as well as one of the List of countries and dependencies by population density, most densely populated and Urbanization by country, urbanized. About three-fourths of Geography of Japan, the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barnea Manilensis
Barnea may refer to: * Barnea is an olive cultivar, see List of olive cultivars There are hundreds of cultivars of the olive (''Olea europaea''). As one of the oldest and more important domesticated crops raised by humans, the olive tree has diverged naturally and with the assistance of man into many varieties. Olive cultivars ... * ''Barnea'' (bivalve), a genus of bivalves in the family Pholadidae * Barnea is a surname {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mytilida
Mytilida is an order of marine bivalve molluscs, commonly known as true mussels. There is one extant superfamily, the Mytiloidea, with a single extant family, the Mytilidae. Species in the order Mytilida are found worldwide, but they are more abundant in colder seas, where they often form uninterrupted beds on rocky shores in the intertidal zone and the shallow subtidal. The subfamily Bathymodiolinae is found in deep-sea habitats. Mytilids include the well-known edible sea mussels. A common feature of the shells of mussels is an asymmetrical shell which has a thick, adherent periostracum. The animals attach themselves to a solid substrate using a byssus. 2010 taxonomy In 2010, a new proposed classification system for the Bivalvia was published by Bieler, Carter & Coan. This included the suborder Mytiloida.Bieler, R., Carter, J.G. & Coan, E.V. (2010) ''Classification of Bivalve families''. Pp. 113-133, in: Bouchet, P. & Rocroi, J.P. (2010), ''Nomenclator of Bivalve Families. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polydora (annelid)
''Polydora'' is a genus of annelid worms. It contains marine polychaete species that live in mud, holes bored in rocks, and holes bored in the shells of shellfish. Some shell- and rock-boring polydora worms leave a characteristic double hole in the rock and shells in which they burrow. Etymology From the Ancient Greek Πολυδωρη, from Polydora, daughter of Tethys and Ocean in Greek mythology. Economic effects Polydora species are a major economic issue for parts of the shellfish industry. Some species cause "mudblister" on oysters, living inside the oyster shell and roughening its interior surface. Although this makes the oyster grow much more slowly, and makes the shell ugly and harder to sell, the meat of the oyster is still fit to eat. List of ''Polydora'' species * '' Polydora aciculata'' * '' Polydora aggregata'' * '' Polydora anoculata'' * '' Polydora armata'' Langerhans, 1880 * '' Polydora barbilla'' * '' Polydora bioccipitalis'' * '' Polydora blakei'' * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Co-infection
Coinfection is the simultaneous infection of a host by multiple pathogen species. In virology, coinfection includes simultaneous infection of a single cell by two or more virus particles. An example is the coinfection of liver cells with hepatitis B virus and hepatitis D virus, which can arise incrementally by initial infection followed by superinfection. Global prevalence or incidence of coinfection among humans is unknown, but it is thought to be commonplace, sometimes more common than single infection. Coinfection with helminths affects around 800 million people worldwide. Coinfection is of particular human health importance because pathogen species can interact within the host. The net effect of coinfection on human health is thought to be negative. Interactions can have either positive or negative effects on other parasites. Under positive parasite interactions, disease transmission and progression are enhanced and this is also known as syndemism. Negative parasite inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venerupis Philippinarum
''Lajonkairia lajonkairii'' is an edible species of saltwater clam in the family Veneridae, the Venus clams. MolluscaBase eds. (2022). MolluscaBase. Lajonkairia lajonkairii (Payraudeau, 1826). Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=140727 on 2022-02-05 Common names for the species include Manila clam, Japanese littleneck clam, Japanese cockleCohen, A. N. 2011''Venerupis philippinarum''.The Exotics Guide: Non-native Marine Species of the North American Pacific Coast. Center for Research on Aquatic Bioinvasions, Richmond, California, and San Francisco Estuary Institute, Oakland, California. Revised September 2011. and Japanese carpet shell. This clam is commercially harvested, being the second most important bivalve grown in aquaculture worldwide.Cordero, D., et alPopulation genetics of the Manila clam (Ruditapes philippinarum) introduced in North America and Europe.''Nature: Scientific Reports'' 7, Article number: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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). Fossils have been found in Belgium, Italy, the Netherlands, Egypt, Greece, Spain, the United Kingdom, Austria, France and Germany. Description When mature, ''O. edulis'' adults range from across. Shells are oval or pear shaped, white, yellowish or cream in colour, with a rough surface showing pale brown or bluish concentric bands on the right valve. The two valves are quite different in shape and size, as the left one is concave and fixed to the substratum, while the right one is almost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Oyster
The Pacific oyster, Japanese oyster, or Miyagi oyster (''Magallana gigas''), is an oyster native to the Pacific coast of Asia. It has become an introduced species in North America, Australia, Europe, and New Zealand. Etymology The genus ''Magallana'' is named for the Portuguese explorer Ferdinand Magellan and its specific epithet ''gígās'' is from the Greek for "giant". It was previously placed in the genus '' Crassostrea''; from the Latin ''crass'' meaning "thick", ''ostrea'' meaning "oyster", and ''Crassostrea gigas'' is considered by part of the scientific community to be the proper denomination as an accepted alternative in WoRMS, Description The shell of ''M. gigas'' varies widely with the environment where it is attached. Its large, rounded, radial folds are often extremely rough and sharp. The two valves of the shell are slightly different in size and shape, the right valve being moderately concave. Shell colour is variable, usually pale white or off-white. Mature spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Mussel
The Mediterranean mussel (''Mytilus galloprovincialis'') is a species of bivalve, a marine (ocean), marine mollusc in the family (biology), family Mytilidae. It is an invasive species in many parts of the world, and also an object of aquaculture. Systematics ''Mytilus galloprovincialis'' is one of the three principal, closely related species in the ''Mytilus edulis'' complex of blue mussels, which collectively are widely distributed on the temperate to subarctic coasts of both the Northern and Southern Hemispheres, and often are dominant inhabitants on hard substrates of the intertidal and nearshore habitats. ''M. galloprovincialis'' will often hybridize with its sister taxa, the closely related ''Mytilus edulis'' and ''Mytilus trossulus'', when they are found in the same locality. ''M. galloprovincialis'' is considered the most warm-water-tolerant species of the three, and has the most southerly distribution in Europe and North America. Right and left valve of the same specimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Mussels
The blue mussel (''Mytilus edulis''), also known as the common mussel, is a medium-sized edible marine bivalve mollusc in the family Mytilidae, the mussels. Blue mussels are subject to commercial use and intensive aquaculture. A species with a large range, empty shells are commonly found on beaches around the world. Systematics and distribution The ''Mytilus edulis'' complex Systematically blue mussel consists of a group of (at least) three closely related taxa of mussels, known as the ''Mytilus edulis'' complex. Collectively they occupy both coasts of the North Atlantic (including the Mediterranean) and of the North Pacific in temperate to polar waters, as well as coasts of similar nature in the Southern Hemisphere. The distribution of the component taxa has been recently modified as a result of human activity. The taxa can hybridise with each other, if present at the same locality. *''Mytilus edulis'' sensu stricto: Native to the North Atlantic. *''Mytilus galloprovin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barnea Dilatata
Barnea may refer to: * Barnea is an olive cultivar, see List of olive cultivars There are hundreds of cultivars of the olive (''Olea europaea''). As one of the oldest and more important domesticated crops raised by humans, the olive tree has diverged naturally and with the assistance of man into many varieties. Olive cultivars ... * ''Barnea'' (bivalve), a genus of bivalves in the family Pholadidae * Barnea is a surname {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Sea
The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it has almost no tides due to its nearly complete enclosure from the Pacific Ocean. This isolation also affects faunal diversity and salinity, both of which are lower than in the open ocean. The sea has no large islands, bays or capes. Its water balance is mostly determined by the inflow and outflow through the straits connecting it to the neighboring seas and the Pacific Ocean. Few rivers discharge into the sea and their total contribution to the water exchange is within 1%. The seawater has an elevated concentration of dissolved oxygen that results in high biological productivity. Therefore, fishing is the dominant economic activity in the region. The intensity of shipments across the sea has been moderate owing to political issues, but it i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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